Table A17. Employment Size Category, Number of Buildings, 1992

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Buildings by Number of Workers

RSE

Row

Factor

Less than

5

Workers

5 to 9

Workers

10 to 19

Workers

20 to 49

Workers

50 to 99

Workers

100 to 249

Workers

250 or

More

Workers

0.5 0.8 0.9 1.1 1.0 1.2 1.3 1.4

All Buildings ................................... 4,806 2,718 895 561 405 130 64 31 5.9

Building Floorspace (square feet)

 1,001 to 5,000 ................................ 2,681 1,968 514 160 34 Q Q Q 10.1

 5,001 to 10,000 .............................. 975 460 218 195 94 Q Q Q 8.5

 10,001 to 25,000 ............................ 647 204 115 144 153 25 Q Q 9.3

 25,001 to 50,000 ............................ 280 60 37 43 84 41 13 Q 13.8

 50,001 to 100,000 .......................... 116 12 8 10 28 32 18 7 15.7

 100,001 to 200,000 ........................ 71 8 3 7 10 16 18 9 21.0

 200,001 to 500,000 ........................ 26 3 Q Q 2 3 7 9 19.3

 Over 500,000 ................................. 9 Q Q Q Q Q 1 4 26.0

Principal Building Activity

 Education ....................................... 301 88 51 58 68 25 11 Q 13.6

 Food Sales ..................................... 130 91 Q Q Q Q Q Q 21.0

 Food Service ................................. 260 98 85 54 20 Q Q Q 17.4

 Health Care .................................... 63 Q Q Q 11 Q 2 3 23.3

 Lodging .......................................... 154 98 18 12 18 5 Q Q 22.5

 Mercantile and Service ................... 1,272 765 272 124 75 23 9 3 11.2

 Office .............................................. 749 199 203 138 122 39 26 21 10.2

 Parking Garage .............................. 24 17 Q Q Q Q Q Q 38.8

 Public Assembly ............................. 278 180 46 29 11 9 Q Q 17.8

 Public Order and Safety ................. 60 28 Q Q Q Q Q Q 30.7

 Religious Worship .......................... 366 254 46 39 20 Q Q Q 18.2

 Warehouse and Storage ................ 761 563 91 58 33 10 4 1 15.6

 Other .............................................. 69 42 Q Q 7 Q Q (*) 30.1

 Vacant ............................................ 319 280 13 21 Q Q Q Q 20.6

Year Constructed

 1899 or Before ............................... 169 93 41 14 14 Q Q Q 23.8

 1900 to 1919 .................................. 255 157 39 36 13 Q 3 Q 21.1

 1920 to 1945 .................................. 724 476 122 63 46 10 4 3 15.0

 1946 to 1959 .................................. 880 501 176 94 80 20 7 2 13.6

 1960 to 1969 .................................. 783 431 131 101 78 23 11 8 12.2

 1970 to 1979 .................................. 982 514 208 130 80 28 16 6 11.0

 1980 to 1989 .................................. 884 469 162 109 84 32 20 8 11.0

 1990 to 1992 .................................. 128 77 16 15 10 5 3 2 25.8

Census Region

 Northeast ........................................ 771 404 148 95 77 29 10 7 12.2

 Midwest .......................................... 1,202 721 218 122 87 31 17 6 11.6

 South .............................................. 1,963 1,180 341 222 147 43 20 9 10.0

 West ............................................... 870 412 189 122 94 27 17 9 14.3

Energy Sources (more than one

may apply)

 Electricity ........................................ 4,616 2,530 895 560 405 130 64 31 5.8

 Natural Gas .................................... 2,665 1,266 560 383 300 87 48 22 7.1

 Fuel Oil ........................................... 559 304 94 67 43 21 15 14 14.8

 District Heat .................................... 95 22 14 22 17 10 4 7 20.0

 District Chilled Water ...................... 28 Q Q 10 5 3 2 3 27.9

 Propane .......................................... 337 215 64 33 16 5 4 Q 22.7

 Any Other ....................................... 163 119 Q Q Q Q Q Q 18.6

Energy End Uses (more than one

may apply)

 Heated Buildings ............................ 4,178 2,154 861 540 401 128 64 30 5.9

 Air-Conditioned Buildings ............... 3,502 1,623 781 502 384 118 63 31 6.0

 Buildings with Water Heating ......... 3,502 1,609 777 512 384 126 62 31 6.0

 Buildings with Cooking ................... 734 260 155 126 105 43 26 18 9.9

 Buildings with Manufacturing ......... 121 42 20 23 27 6 3 1 23.2

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 93
Table A17. Employment Size Category, Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Buildings by Number of Workers

RSE

Row

Factor

Less than

5

Workers

5 to 9

Workers

10 to 19

Workers

20 to 49

Workers

50 to 99

Workers

100 to 249

Workers

250 or

More

Workers

0.5 0.8 0.9 1.1 1.0 1.2 1.3 1.4

Floors

 One ................................................ 3,007 1,922 555 290 175 47 14 3 10.0

 Two ................................................ 1,154 553 230 181 128 40 18 4 9.9

 Three .............................................. 446 193 79 57 74 25 12 5 13.6

 Four to Nine ................................... 186 49 31 33 26 17 18 11 17.9

 Ten or More .................................... 13 Q Q Q Q Q 2 8 20.4

Percent Window Glass

 25 or Less ...................................... 4,193 2,510 774 451 314 91 39 14 6.8

 26 to 50 .......................................... 490 168 105 95 68 28 17 9 11.2

 51 to 75 .......................................... 94 29 14 11 21 8 5 5 23.8

 76 to 100 ........................................ 29 Q Q Q Q Q 3 3 26.9

Weekly Operating Hours

 39 or Fewer .................................... 1,039 843 89 65 27 12 Q Q 15.1

 40 to 48 .......................................... 1,278 616 282 185 135 41 13 6 10.8

 49 to 60 .......................................... 1,004 517 225 124 87 27 15 8 10.7

 61 to 84 .......................................... 645 281 167 88 67 21 14 7 11.2

 85 to 167 ........................................ 478 242 87 70 48 18 11 3 15.0

 Open Continuously ......................... 362 218 44 31 41 11 10 7 14.0

Percent Vacant for at Least Three

Months

 1-50 Percent ................................... 362 120 64 65 60 23 16 13 12.5

 51-99 Percent ................................. 97 68 10 Q 5 3 Q Q 25.0

 100 Percent .................................... 398 335 31 21 7 Q Q Q 21.3

 None ............................................... 3,948 2,195 791 468 332 101 44 17 6.7

Ownership and Occupancy

 Nongovernment Owned ................. 4,206 2,465 792 469 312 98 46 25 6.3

 Owner Occupied .......................... 3,192 1,856 628 356 232 70 33 18 7.3

 Nonowner Occupied ..................... 817 419 162 110 79 27 13 7 11.2

 Unoccupied .................................. 197 191 Q Q Q Q Q Q 15.8

 Government Owned ....................... 599 253 103 93 92 32 18 7 11.7

Percent of Floorspace Heated

 Not Heated ..................................... 653 586 36 23 Q Q Q Q 17.4

 1 to 50 ............................................ 688 442 127 69 35 9 4 1 14.6

 51 to 99 .......................................... 618 265 154 100 63 18 10 8 13.0

 100 ................................................. 2,846 1,424 578 370 303 101 49 22 6.5

Percent of Floorspace Cooled

 Not Cooled ..................................... 1,304 1,096 115 60 20 12 Q Q 15.0

 1 to 50 ............................................ 1,176 582 268 162 113 37 12 1 10.7

 51 to 99 .......................................... 658 251 143 114 92 26 18 14 11.0

 100 ................................................. 1,668 790 369 226 179 55 33 15 8.5

Percent Lit when Open

 Not Lit ............................................. 413 407 Q Q Q Q Q Q 15.0

 1 to 50 ............................................ 881 665 136 49 20 7 Q Q 13.8

 51 to 99 .......................................... 813 352 180 128 103 27 14 8 10.7

 100 ................................................. 2,699 1,294 577 381 281 96 47 24 6.8

Heating Equipment (more than

one may apply)

 Heat Pumps ................................... 449 199 96 59 61 17 10 6 14.9

 Furnaces ........................................ 1,692 912 407 210 120 30 10 3 10.6

 Individual Space Heaters ............... 1,464 846 281 158 113 41 17 9 10.0

 District Heat .................................... 93 22 14 21 16 10 4 7 20.3

 Boilers ............................................ 624 211 119 95 111 43 29 15 10.1

 Packaged Heating Units ................. 870 305 188 169 133 46 21 8 10.9

 Other .............................................. 42 Q Q Q Q Q Q 1 37.4

See footnotes at end of table.

94 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A17. Employment Size Category, Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Buildings by Number of Workers

RSE

Row

Factor

Less than

5

Workers

5 to 9

Workers

10 to 19

Workers

20 to 49

Workers

50 to 99

Workers

100 to 249

Workers

250 or

More

Workers

0.5 0.8 0.9 1.1 1.0 1.2 1.3 1.4

Cooling Equipment (more than

one may apply)

 Residential-Type Central Air

 Conditioners ................................... 816 380 208 130 75 14 8 2 14.6

 Heat Pumps ................................... 454 202 92 61 65 16 11 6 14.7

 Individual Air Conditioners ............. 1,023 574 194 121 85 32 12 5 11.1

 District Chilled Water ...................... 28 Q Q 10 5 3 2 3 27.9

 Central Chillers ............................... 142 24 9 15 33 24 19 18 17.1

 Packaged Air-Conditioning

 Units ............................................... 1,459 512 351 263 205 77 34 16 8.4

 Swamp Coolers .............................. 179 83 52 22 12 Q Q Q 31.3

 Other .............................................. 8 Q Q Q Q Q Q Q 82.0

Lighting Equipment Types (more

than one may apply)

 Incandescent .................................. 2,509 1,323 491 339 217 78 40 21 7.2

 Standard Fluorescent ..................... 4,065 2,066 848 530 400 126 64 31 5.7

 Compact Fluorescent ..................... 206 79 34 25 28 16 15 10 14.7

 High-Intensity Discharge ................ 354 122 62 55 52 34 19 9 11.0

 Other .............................................. 78 31 15 Q Q Q Q 2 29.4

Personal Computers and/or

Computer Terminals

 1 to 4 .............................................. 1,269 565 388 196 101 18 Q Q 8.9

 5 to 9 .............................................. 336 16 114 109 77 14 5 Q 15.9

 10 to 19 .......................................... 216 11 23 68 92 16 5 Q 16.6

 20 to 49 .......................................... 164 Q Q 22 80 35 15 2 15.6

 50 to 99 .......................................... 59 Q Q Q 13 24 17 4 17.3

 100 to 249 ...................................... 34 Q Q Q Q 7 14 9 17.3

 250 or More .................................... 19 Q Q Q Q Q 4 14 20.4

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ........................ 574 215 111 106 83 29 17 13 11.5

 Natural Lighting Control

 Sensors .......................................... 74 34 12 Q 5 7 3 2 23.2

 Occupancy Sensors ....................... 59 Q Q Q 8 6 8 5 22.4

 Time Clock ..................................... 339 111 63 65 50 24 15 11 13.2

 Manual Dimmer Switches .............. 413 166 81 62 54 23 15 12 12.4

 Other .............................................. 78 26 Q Q 14 8 4 3 23.8

Off-Hour Equipment Reduction

(more than one may apply)

 Heating ........................................... 3,400 1,733 734 448 318 99 47 21 6.6

 Cooling ........................................... 2,872 1,336 659 413 305 92 46 22 6.5

 Hot Water ....................................... 578 268 110 90 63 30 11 6 12.3

 Lighting ........................................... 4,089 2,170 841 521 362 117 54 25 6.1

 Other .............................................. 547 236 139 91 49 19 8 5 15.8

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program ................... 36 Q Q Q Q Q Q 1 32.5

 HVAC Program .............................. 154 51 25 25 22 13 10 7 16.8

 Lighting Program ............................ 228 74 50 26 38 20 13 7 15.4

 Other DSM Programs ..................... 110 28 26 14 13 13 8 7 20.2

(*) = Value rounds to zero in the units displayed.

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

Energy Information Administration/Commercial Buildings Characteristrics 1992 95
Table A18. Employment Size Category, Floorspace, 1992

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace by Number of Workers

RSE

Row

Factor

Less than

5

Workers

5 to 9

Workers

10 to 19

Workers

20 to 49

Workers

50 to 99

Workers

100 to 249

Workers

250 or

More

Workers

0.5 1.0 1.0 1.1 0.9 1.2 1.4 1.2

All Buildings ................................... 67,876 17,944 7,524 8,077 10,556 7,763 7,378 8,633 7.4

Building Floorspace (square feet)

 1,001 to 5,000 ................................ 7,327 5,095 1,554 537 120 Q Q Q 10.5

 5,001 to 10,000 .............................. 7,199 3,329 1,612 1,446 757 Q Q Q 8.2

 10,001 to 25,000 ............................ 10,375 3,053 1,801 2,323 2,608 450 Q Q 9.2

 25,001 to 50,000 ............................ 10,069 2,107 1,348 1,538 3,049 1,445 517 Q 14.0

 50,001 to 100,000 .......................... 8,062 910 595 643 1,899 2,151 1,303 561 15.5

 100,001 to 200,000 ........................ 9,678 1,044 444 922 1,367 2,122 2,550 1,229 20.9

 200,001 to 500,000 ........................ 7,889 1,020 Q Q 628 850 2,139 2,812 19.8

 Over 500,000 ................................. 7,278 Q Q Q Q Q 744 3,951 25.8

Principal Building Activity

 Education ....................................... 8,470 481 448 738 2,533 2,213 1,874 Q 15.2

 Food Sales ..................................... 757 310 Q Q Q Q Q Q 23.8

 Food Service ................................. 1,491 338 438 414 252 Q Q Q 20.6

 Health Care .................................... 1,763 Q Q Q 162 Q 294 1,040 22.7

 Lodging .......................................... 2,891 764 332 220 646 449 Q Q 23.2

 Mercantile and Service ................... 12,402 3,000 1,927 1,550 1,750 1,246 1,188 1,740 14.7

 Office .............................................. 12,319 861 994 1,048 1,952 1,326 1,603 4,535 12.2

 Parking Garage .............................. 1,652 874 Q Q Q Q Q Q 38.0

 Public Assembly ............................. 4,556 2,194 495 712 335 334 Q Q 30.0

 Public Order and Safety ................. 820 151 Q Q Q Q Q Q 30.9

 Religious Worship .......................... 3,747 1,989 649 540 428 Q Q Q 22.1

 Warehouse and Storage ................ 11,484 3,846 1,446 1,813 1,825 1,135 1,051 368 19.2

 Other .............................................. 1,130 160 Q Q 165 Q Q 162 27.8

 Vacant ............................................ 4,396 2,938 230 367 Q Q Q Q 21.4

Year Constructed

 1899 or Before ............................... 1,721 692 444 167 151 Q Q Q 25.2

 1900 to 1919 .................................. 3,608 993 453 612 355 Q 476 Q 25.0

 1920 to 1945 .................................. 8,712 3,053 1,211 933 1,105 1,023 484 904 19.3

 1946 to 1959 .................................. 10,421 2,922 1,236 1,611 2,204 1,222 719 507 15.9

 1960 to 1969 .................................. 12,612 2,807 1,227 1,211 2,180 1,685 1,369 2,133 15.3

 1970 to 1979 .................................. 14,014 3,165 1,577 1,812 2,088 1,424 1,895 2,053 12.5

 1980 to 1989 .................................. 14,287 3,795 1,226 1,531 2,075 1,464 2,069 2,127 14.3

 1990 to 1992 .................................. 2,502 516 152 201 399 301 349 585 23.2

Census Region

 Northeast ........................................ 13,400 2,708 1,328 1,367 2,014 1,899 1,378 2,707 14.9

 Midwest .......................................... 17,280 4,747 1,867 1,871 2,521 2,002 2,467 1,805 12.2

 South .............................................. 24,577 7,676 3,013 3,266 3,818 2,286 1,984 2,535 12.6

 West ............................................... 12,619 2,813 1,316 1,573 2,204 1,577 1,549 1,586 13.6

Energy Sources (more than one

may apply)

 Electricity ........................................ 66,549 16,640 7,524 8,054 10,556 7,763 7,378 8,633 7.5

 Natural Gas .................................... 45,097 8,079 4,494 5,484 8,357 5,982 6,076 6,625 8.1

 Fuel Oil ........................................... 13,218 1,793 786 884 1,094 1,487 2,314 4,860 13.6

 District Heat .................................... 5,339 410 321 494 518 806 674 2,115 22.2

 District Chilled Water ...................... 2,066 Q Q 193 191 327 192 868 28.9

 Propane .......................................... 3,393 929 510 402 445 384 484 Q 21.6

 Any Other ....................................... 1,551 514 Q Q Q Q Q Q 22.2

Energy End Uses (more than one

may apply)

 Heated Buildings ............................ 61,996 13,604 7,075 7,528 10,440 7,652 7,323 8,374 7.5

 Air-Conditioned Buildings ............... 57,041 10,719 6,249 6,954 9,990 7,313 7,195 8,621 7.7

 Buildings with Water Heating ......... 58,479 11,207 6,432 7,089 10,215 7,644 7,278 8,613 7.8

 Buildings with Cooking ................... 23,065 2,678 1,326 1,719 3,419 3,424 3,998 6,502 13.7

 Buildings with Manufacturing ......... 3,174 334 256 384 916 395 561 328 25.1

See footnotes at end of table.

96 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A18. Employment Size Category, Floorspace, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace by Number of Workers

RSE

Row

Factor

Less than

5

Workers

5 to 9

Workers

10 to 19

Workers

20 to 49

Workers

50 to 99

Workers

100 to 249

Workers

250 or

More

Workers

0.5 1.0 1.0 1.1 0.9 1.2 1.4 1.2

Floors

 One ................................................ 25,424 10,122 3,676 3,239 4,273 2,394 1,165 556 12.0

 Two ................................................ 18,025 4,222 2,148 2,577 3,025 2,492 2,318 1,242 12.2

 Three .............................................. 9,877 1,728 909 993 2,173 1,525 1,486 1,064 14.7

 Four to Nine ................................... 10,377 1,514 790 1,254 956 1,241 2,070 2,553 18.8

 Ten or More .................................... 4,173 Q Q Q Q Q 338 3,219 21.7

Percent Window Glass

 25 or Less ...................................... 51,356 15,935 6,430 6,760 8,155 5,497 4,677 3,903 8.7

 26 to 50 .......................................... 11,815 1,662 893 1,118 1,907 1,628 2,059 2,549 13.3

 51 to 75 .......................................... 3,206 189 199 142 427 502 424 1,323 23.5

 76 to 100 ........................................ 1,499 Q Q Q Q Q 218 859 28.4

Weekly Operating Hours

 39 or Fewer .................................... 8,246 5,524 636 637 663 598 Q Q 17.7

 40 to 48 .......................................... 14,998 3,347 2,032 2,496 3,148 1,859 1,112 1,004 12.4

 49 to 60 .......................................... 14,046 3,047 2,284 1,947 2,033 1,386 1,615 1,733 12.3

 61 to 84 .......................................... 12,062 1,743 1,266 1,120 1,956 1,786 1,695 2,495 14.1

 85 to 167 ........................................ 8,467 1,470 677 1,061 1,365 1,161 1,362 1,369 17.4

 Open Continuously ......................... 10,057 2,812 629 816 1,391 973 1,428 2,009 21.6

Percent Vacant for at Least Three

Months

 1-50 Percent ................................... 12,420 1,041 634 1,213 1,435 1,296 2,150 4,651 14.9

 51-99 Percent ................................. 2,263 521 239 Q 376 Q Q 256 30.4

 100 Percent .................................... 4,109 3,052 280 228 196 Q Q 59 23.3

 None ............................................... 49,085 13,331 6,372 6,502 8,550 5,981 4,682 3,667 8.3

Ownership and Occupancy

 Nongovernment Owned ................. 52,752 15,976 6,524 6,412 7,501 5,132 4,593 6,614 8.4

 Owner Occupied .......................... 38,403 10,973 5,015 4,933 5,586 3,584 3,110 5,202 8.3

 Nonowner Occupied ..................... 12,273 3,044 1,486 1,437 1,880 1,549 1,472 1,405 16.1

 Unoccupied .................................. 2,077 1,959 Q Q Q Q Q Q 16.9

 Government Owned ....................... 15,124 1,968 1,000 1,665 3,056 2,631 2,785 2,019 15.1

Percent of Floorspace Heated

 Not Heated ..................................... 6,211 4,578 455 Q Q Q Q Q 22.5

 1 to 50 ............................................ 11,195 3,678 1,659 1,992 1,350 1,123 486 907 19.4

 51 to 99 .......................................... 10,211 1,318 1,265 1,247 1,801 1,200 1,425 1,956 13.9

 100 ................................................. 40,260 8,371 4,146 4,286 7,206 5,329 5,412 5,511 8.0

Percent of Floorspace Cooled

 Not Cooled ..................................... 10,835 7,225 1,276 1,123 566 450 Q Q 19.3

 1 to 50 ............................................ 21,715 4,650 3,132 3,447 4,190 3,265 2,228 804 13.4

 51 to 99 .......................................... 13,872 1,249 1,056 1,287 2,391 1,497 2,007 4,386 12.3

 100 ................................................. 21,454 4,820 2,061 2,221 3,410 2,551 2,960 3,430 10.8

Percent Lit when Open

 Not Lit ............................................. 3,280 3,185 Q Q Q Q Q Q 15.0

 1 to 50 ............................................ 9,980 4,775 1,914 1,433 806 578 Q Q 17.9

 51 to 99 .......................................... 14,224 2,779 1,518 1,604 2,723 1,496 2,007 2,097 15.2

 100 ................................................. 40,393 7,205 4,086 4,986 6,994 5,689 5,072 6,361 8.2

Heating Equipment (more than

one may apply)

 Heat Pumps ................................... 8,269 1,219 812 938 1,408 1,161 1,327 1,404 15.9

 Furnaces ........................................ 16,909 4,981 2,917 2,488 2,590 2,133 800 1,001 13.2

 Individual Space Heaters ............... 22,380 5,455 2,569 2,655 3,314 2,638 2,610 3,138 11.6

 District Heat .................................... 5,225 396 314 487 500 785 674 2,070 22.6

 Boilers ............................................ 20,664 2,755 1,516 1,831 3,784 2,882 3,911 3,984 13.2

 Packaged Heating Units ................. 16,000 1,694 1,372 1,992 3,380 2,406 2,689 2,466 12.4

 Other .............................................. 903 Q Q Q Q Q Q 186 32.4

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 97
Table A18. Employment Size Category, Floorspace, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace by Number of Workers

RSE

Row

Factor

Less than

5

Workers

5 to 9

Workers

10 to 19

Workers

20 to 49

Workers

50 to 99

Workers

100 to 249

Workers

250 or

More

Workers

0.5 1.0 1.0 1.1 0.9 1.2 1.4 1.2

Cooling Equipment (more than

one may apply)

 Residential-Type Central

 Air Conditioners .............................. 9,021 2,114 1,399 1,546 1,596 861 594 910 14.0

 Heat Pumps ................................... 8,406 1,272 818 898 1,454 1,140 1,405 1,420 15.1

 Individual Air Conditioners ............. 17,979 4,095 2,143 2,301 2,807 2,678 1,950 2,004 15.5

 District Chilled Water ...................... 2,066 Q Q 193 191 327 192 868 28.9

 Central Chillers ............................... 12,991 Q 182 355 1,320 1,730 2,688 5,397 15.4

 Packaged Air-Conditioning

 Units ............................................... 27,830 3,619 2,612 3,389 5,525 4,500 3,770 4,414 8.9

 Swamp Coolers .............................. 2,085 368 239 296 374 Q Q Q 32.5

 Other .............................................. 268 Q Q Q Q Q Q Q 72.3

Lighting Equipment Types (more

than one may apply)

 Incandescent .................................. 39,221 8,540 4,231 4,618 5,703 4,648 4,910 6,571 8.1

 Standard Fluorescent ..................... 62,074 13,520 7,100 7,490 10,414 7,646 7,334 8,570 7.4

 Compact Fluorescent ..................... 8,336 714 381 376 886 1,089 1,405 3,485 18.0

 High-Intensity Discharge ................ 17,570 1,777 1,174 1,624 2,685 2,920 3,280 4,111 14.1

 Other .............................................. 1,612 270 251 Q Q Q Q 512 35.3

Personal Computers and/or

Computer Terminals

 1 to 4 .............................................. 13,355 3,868 3,496 2,789 2,192 858 Q Q 11.4

 5 to 9 .............................................. 5,970 175 735 1,550 2,075 876 379 Q 16.2

 10 to 19 .......................................... 6,236 225 298 935 2,622 914 704 Q 20.0

 20 to 49 .......................................... 7,439 Q Q 360 2,293 2,203 1,750 555 17.1

 50 to 99 .......................................... 4,908 Q Q Q 483 1,563 2,194 621 18.1

 100 to 249 ...................................... 4,220 Q Q Q Q 561 1,628 1,818 16.7

 250 or More .................................... 5,569 Q Q Q Q Q 424 4,876 21.0

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ........................ 15,241 1,661 1,289 1,924 2,519 1,673 2,030 4,145 13.0

 Natural Lighting Control

 Sensors .......................................... 3,072 444 137 Q 307 335 637 1,039 22.1

 Occupancy Sensors ....................... 3,629 Q Q Q 347 382 1,064 1,587 21.0

 Time Clock ..................................... 12,104 Q 679 1,015 1,277 1,238 1,771 4,134 15.4

 Manual Dimmer Switches .............. 12,329 1,530 842 923 1,190 1,377 2,313 4,155 14.4

 Other .............................................. 2,596 217 Q Q 456 455 467 728 20.7

Off-Hour Equipment Reduction

(more than one may apply)

 Heating ........................................... 46,248 9,628 5,842 5,649 8,030 6,026 5,194 5,878 7.5

 Cooling ........................................... 42,768 7,658 5,193 5,169 7,747 5,799 5,108 6,095 7.8

 Hot Water ....................................... 9,966 1,602 904 1,216 1,724 1,366 1,363 1,791 13.3

 Lighting ........................................... 54,944 12,716 6,833 7,168 9,110 6,733 5,861 6,523 7.3

 Other .............................................. 7,996 1,151 1,055 1,067 1,235 1,234 1,054 1,199 17.2

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program ................... 1,079 Q Q Q Q Q Q 348 28.9

 HVAC Program .............................. 6,370 490 352 308 672 1,038 1,404 2,106 18.0

 Lighting Program ............................ 8,805 845 432 283 1,276 1,408 1,794 2,768 16.9

 Other DSM Programs ..................... 6,176 355 295 181 548 967 1,230 2,600 23.5

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

98 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A19. Weekly Operating Hours, Number of Buildings, 1992

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Buildings by Weekly Operating Hours

RSE

Row

Factor

39 or

Fewer

Hours

40 to 48

Hours

49 to 60

Hours

61 to 84

Hours

85 to 167

Hours

Open

Continuously

0.6 1.2 0.9 1.0 1.0 1.2 1.3

All Buildings ................................... 4,806 1,039 1,278 1,004 645 478 362 5.4

Building Floorspace (square feet)

 1,001 to 5,000 ................................ 2,681 688 687 519 324 281 182 7.9

 5,001 to 10,000 .............................. 975 188 293 216 146 69 62 9.0

 10,001 to 25,000 ............................ 647 107 183 156 87 64 50 9.8

 25,001 to 50,000 ............................ 280 37 70 71 41 31 31 12.2

 50,001 to 100,000 .......................... 116 14 25 20 24 17 15 15.0

 100,001 to 200,000 ........................ 71 Q 16 17 16 10 9 17.2

 200,001 to 500,000 ........................ 26244458 19.9

 Over 500,000 ................................. 9 Q (*) 1 2 1 Q 28.3

Principal Building Activity

 Education ....................................... 301 63 127 53 45 11 Q 14.7

 Food Sales ..................................... 130 Q Q Q 28 69 23 20.3

 Food Service ................................. 260 Q 20 Q 62 137 Q 15.7

 Health Care .................................... 63 Q 24 18 Q Q 11 24.7

 Lodging .......................................... 154 Q Q Q Q Q 137 12.7

 Mercantile and Service ................... 1,272 66 317 448 287 117 37 10.3

 Office .............................................. 749 46 414 175 63 30 20 12.6

 Parking Garage .............................. 24 Q Q Q Q Q 6 32.7

 Public Assembly ............................. 278 113 40 35 43 41 Q 14.4

 Public Order and Safety ................. 60 Q Q Q Q Q 39 22.0

 Religious Worship .......................... 366 284 22 26 22 Q Q 17.6

 Warehouse and Storage ................ 761 193 243 181 64 33 47 12.9

 Other .............................................. 69 Q 13 10 Q Q 17 28.4

 Vacant ............................................ 319 227 42 23 11 Q Q 19.5

Year Constructed

 1899 or Before ............................... 169 57 43 22 17 22 Q 21.3

 1900 to 1919 .................................. 255 75 71 52 23 21 13 18.4

 1920 to 1945 .................................. 724 185 208 137 100 61 34 12.7

 1946 to 1959 .................................. 880 219 245 192 82 88 53 10.1

 1960 to 1969 .................................. 783 150 188 171 106 86 82 10.6

 1970 to 1979 .................................. 982 196 244 211 154 99 77 9.8

 1980 to 1989 .................................. 884 132 249 183 145 91 83 10.5

 1990 to 1992 .................................. 128 24 30 34 18 10 12 25.8

Census Region

 Northeast ........................................ 771 123 191 184 129 83 61 12.6

 Midwest .......................................... 1,202 314 294 231 170 127 65 10.6

 South .............................................. 1,963 486 541 395 220 167 154 8.9

 West ............................................... 870 116 252 193 127 101 82 14.4

Energy Sources (more than one

may apply)

 Electricity ........................................ 4,616 889 1,270 992 641 475 349 5.3

 Natural Gas .................................... 2,665 407 753 599 404 299 202 6.8

 Fuel Oil ........................................... 559 119 146 131 77 41 44 14.6

 District Heat .................................... 95 11 34 16 9 7 19 21.4

 District Chilled Water ...................... 28 Q 8 4 4 Q 5 32.6

 Propane .......................................... 337 94 59 69 44 46 26 18.9

 Any Other ....................................... 163 31 54 35 Q Q 18 20.5

Energy End Uses (more than one

may apply)

 Heated Buildings ............................ 4,178 725 1,186 920 603 436 307 5.5

 Air-Conditioned Buildings ............... 3,502 513 1,007 786 528 405 262 5.9

 Buildings with Water Heating ......... 3,502 507 979 764 518 435 300 5.7

 Buildings with Cooking ................... 734 116 89 83 149 218 78 10.3

 Buildings with Manufacturing ......... 121 Q 46 34 19 7 6 23.6

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 99
Table A19. Weekly Operating Hours, Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Buildings by Weekly Operating Hours

RSE

Row

Factor

39 or

Fewer

Hours

40 to 48

Hours

49 to 60

Hours

61 to 84

Hours

85 to 167

Hours

Open

Continuously

0.6 1.2 0.9 1.0 1.0 1.2 1.3

Workers (main shift)

 Less than 5 ..................................... 2,718 843 616 517 281 242 218 7.7

 5 to 9 .............................................. 895 89 282 225 167 87 44 9.8

 10 to 19 .......................................... 561 65 185 124 88 70 31 11.8

 20 to 49 .......................................... 405 27 135 87 67 48 41 12.0

 50 to 99 .......................................... 130 12 41 27 21 18 11 16.0

 100 to 249 ...................................... 64 Q 13 15 14 11 10 15.7

 250 or More .................................... 31 Q 6 8 7 3 7 19.1

Ownership and Occupancy

 Nongovernment Owned ................. 4,206 917 1,036 934 577 450 292 5.7

 Owner Occupied .......................... 3,192 646 787 723 437 354 245 6.4

 Nonowner Occupied ..................... 817 99 241 201 138 96 43 10.7

 Unoccupied .................................. 197 173 Q Q Q Q Q 12.9

 Government Owned ....................... 599 122 242 69 68 28 70 12.0

Percent of Floorspace Heated

 Not Heated ..................................... 653 323 100 87 43 43 56 14.9

 1 to 50 ............................................ 688 109 215 182 89 60 33 11.8

 51 to 99 .......................................... 618 78 164 152 105 81 38 11.6

 100 ................................................. 2,846 528 799 583 407 294 235 6.3

Percent of Floorspace Cooled

 Not Cooled ..................................... 1,304 526 271 217 116 73 100 10.4

 1 to 50 ............................................ 1,176 127 341 346 197 106 59 8.7

 51 to 99 .......................................... 658 80 184 133 102 99 60 10.7

 100 ................................................. 1,668 306 482 307 230 200 142 8.3

Percent Lit when Open

 Not Lit ............................................. 413 332 Q 29 Q Q 18 17.5

 1 to 50 ............................................ 881 172 261 192 108 91 58 10.1

 51 to 99 .......................................... 813 126 245 187 124 79 51 9.1

 100 ................................................. 2,699 408 759 595 402 301 234 6.9

Heating Equipment (more than

one may apply)

 Heat Pumps ................................... 449 52 150 101 54 49 44 15.0

 Furnaces ........................................ 1,692 333 474 402 226 173 84 8.4

 Individual Space Heaters ............... 1,464 257 401 357 201 117 130 8.6

 District Heat .................................... 93 9 34 16 9 7 19 21.7

 Boilers ............................................ 624 96 165 133 103 60 67 9.2

 Packaged Heating Units ................. 870 104 240 170 158 140 58 10.4

 Other .............................................. 42 Q Q Q Q Q Q 39.8

Cooling Equipment (more than

one may apply)

 Residential-Type Central

 Air Conditioners .............................. 816 139 268 189 104 73 43 12.3

 Heat Pumps ................................... 454 50 151 103 57 49 44 15.0

 Individual Air Conditioners ............. 1,023 156 286 241 151 82 108 9.4

 District Chilled Water ...................... 28 Q 8 4 4 Q 5 32.6

 Central Chillers ............................... 142 13 42 20 30 15 21 16.1

 Packaged Air-Conditioning

 Units ............................................... 1,459 188 381 313 259 216 101 8.3

 Swamp Coolers .............................. 179 Q 55 43 15 37 8 28.1

 Other .............................................. 8 Q Q Q Q Q Q 76.9

Lighting Equipment Types (more

than one may apply)

 Incandescent .................................. 2,509 496 633 489 334 322 234 6.7

 Standard Fluorescent ..................... 4,065 618 1,182 942 597 437 290 5.2

 Compact Fluorescent ..................... 206 13 45 46 44 29 30 17.4

 High-Intensity Discharge ................ 354 30 109 88 50 43 33 12.3

 Other .............................................. 78 Q 26 22 11 11 Q 27.5

See footnotes at end of table.

100 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A19. Weekly Operating Hours, Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Buildings by Weekly Operating Hours

RSE

Row

Factor

39 or

Fewer

Hours

40 to 48

Hours

49 to 60

Hours

61 to 84

Hours

85 to 167

Hours

Open

Continuously

0.6 1.2 0.9 1.0 1.0 1.2 1.3

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ........................ 574 62 180 138 84 56 54 12.3

 Natural Lighting Control

 Sensors .......................................... 74 Q 18 7 9 17 19 25.9

 Occupancy Sensors ....................... 59 Q 20 11 10 9 6 25.7

 Time Clock ..................................... 339 35 76 77 59 53 38 14.8

 Manual Dimmer Switches .............. 413 76 82 69 66 75 44 12.4

 Other .............................................. 78 Q 24 17 13 12 7 26.0

Off-Hour Equipment Reduction

(more than one may apply)

 Heating ........................................... 3,400 656 1,044 824 535 340 Q 5.7

 Cooling ........................................... 2,872 485 884 700 471 333 Q 6.1

 Hot Water ....................................... 578 144 152 113 89 80 Q 10.7

 Lighting ........................................... 4,089 809 1,247 968 621 444 Q 5.3

 Other .............................................. 547 57 160 157 99 74 Q 13.3

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program ................... 36 Q 17 Q 6 Q 6 34.2

 HVAC Program .............................. 154 19 46 26 25 24 14 18.6

 Lighting Program ............................ 228 18 70 41 38 37 23 17.2

 Other DSM Programs ..................... 110 7 29 13 19 27 15 23.7

(*) = Value rounds to zero in the units displayed.

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

Energy Information Administration/Commercial Buildings Characteristrics 1992 101
Table A20. Weekly Operating Hours, Floorspace, 1992

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace by Weekly Operating Hours

RSE

Row

Factor

39 or

Fewer

Hours

40 to 48

Hours

49 to 60

Hours

61 to 84

Hours

85 to 167

Hours

Open

Continuously

0.5 1.2 0.9 0.9 1.1 1.3 1.3

All Buildings ................................... 67,876 8,246 14,998 14,046 12,062 8,467 10,057 6.8

Building Floorspace (square feet)

 1,001 to 5,000 ................................ 7,327 1,797 1,904 1,430 926 772 498 8.1

 5,001 to 10,000 .............................. 7,199 1,341 2,186 1,610 1,098 492 472 9.1

 10,001 to 25,000 ............................ 10,375 1,592 2,994 2,549 1,408 1,022 810 9.8

 25,001 to 50,000 ............................ 10,069 1,309 2,553 2,536 1,443 1,151 1,077 12.4

 50,001 to 100,000 .......................... 8,062 1,007 1,698 1,440 1,769 1,132 1,015 14.6

 100,001 to 200,000 ........................ 9,678 Q 2,254 2,278 2,152 1,390 1,371 17.4

 200,001 to 500,000 ........................ 7,889 418 1,178 1,188 1,238 1,480 2,387 19.9

 Over 500,000 ................................. 7,278 Q 230 1,016 2,028 1,027 2,427 29.0

Principal Building Activity

 Education ....................................... 8,470 1,221 2,761 1,447 1,607 1,333 Q 14.3

 Food Sales ..................................... 757 Q Q Q 149 372 200 21.7

 Food Service ................................. 1,491 Q 81 Q 334 862 Q 19.0

 Health Care .................................... 1,763 Q 151 151 Q Q 1,284 22.8

 Lodging .......................................... 2,891 Q Q Q Q Q 2,730 15.6

 Mercantile and Service ................... 12,402 348 1,657 3,299 4,667 2,038 392 15.0

 Office .............................................. 12,319 220 4,635 4,037 2,048 752 626 14.4

 Parking Garage .............................. 1,652 Q Q Q Q Q 1,268 35.8

 Public Assembly ............................. 4,556 817 353 363 871 978 Q 21.6

 Public Order and Safety ................. 820 Q Q Q Q Q 619 29.6

 Religious Worship .......................... 3,747 1,806 349 647 406 Q Q 21.1

 Warehouse and Storage ................ 11,484 878 3,964 3,273 1,305 1,098 967 15.1

 Other .............................................. 1,130 Q 279 290 Q Q 261 27.0

 Vacant ............................................ 4,396 2,756 601 267 372 Q Q 24.7

Year Constructed

 1899 or Before ............................... 1,721 385 484 363 147 272 Q 23.4

 1900 to 1919 .................................. 3,608 927 883 803 356 402 237 26.6

 1920 to 1945 .................................. 8,712 1,564 2,045 2,013 1,393 780 918 16.7

 1946 to 1959 .................................. 10,421 1,570 2,877 2,640 1,072 1,117 1,146 12.8

 1960 to 1969 .................................. 12,612 1,320 2,617 2,371 2,692 1,910 1,701 15.5

 1970 to 1979 .................................. 14,014 1,455 2,614 2,476 2,778 2,248 2,444 11.4

 1980 to 1989 .................................. 14,287 849 2,923 2,720 3,210 1,465 3,120 14.1

 1990 to 1992 .................................. 2,502 176 554 661 415 273 423 21.3

Census Region

 Northeast ........................................ 13,400 1,400 2,272 2,622 2,578 2,486 2,042 13.3

 Midwest .......................................... 17,280 2,454 3,446 3,474 3,212 2,217 2,477 11.3

 South .............................................. 24,577 3,278 6,543 5,002 3,795 1,938 4,021 11.3

 West ............................................... 12,619 1,114 2,738 2,948 2,477 1,826 1,517 12.3

Energy Sources (more than one

may apply)

 Electricity ........................................ 66,549 7,083 14,952 14,020 12,028 8,455 10,011 6.8

 Natural Gas .................................... 45,097 4,032 9,529 9,575 9,141 6,509 6,311 7.8

 Fuel Oil ........................................... 13,218 1,137 2,448 2,473 2,320 1,695 3,145 12.2

 District Heat .................................... 5,339 375 807 1,059 702 508 1,888 22.8

 District Chilled Water ...................... 2,066 Q 312 357 178 278 724 29.8

 Propane .......................................... 3,393 522 532 674 533 493 639 19.6

 Any Other ....................................... 1,551 176 323 292 Q Q 240 27.0

Energy End Uses (more than one

may apply)

 Heated Buildings ............................ 61,996 6,000 13,745 13,251 11,529 8,141 9,329 7.1

 Air-Conditioned Buildings ............... 57,041 4,632 12,558 12,218 11,158 7,742 8,733 7.5

 Buildings with Water Heating ......... 58,479 5,005 12,613 12,405 11,308 8,020 9,128 7.3

 Buildings with Cooking ................... 23,065 1,828 3,010 3,118 5,195 4,750 5,163 12.5

 Buildings with Manufacturing ......... 3,174 Q 891 920 418 403 410 25.2

See footnotes at end of table.

102 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A20. Weekly Operating Hours, Floorspace, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace by Weekly Operating Hours

RSE

Row

Factor

39 or

Fewer

Hours

40 to 48

Hours

49 to 60

Hours

61 to 84

Hours

85 to 167

Hours

Open

Continuously

0.5 1.2 0.9 0.9 1.1 1.3 1.3

Workers (main shift)

 Less than 5 ..................................... 17,944 5,524 3,347 3,047 1,743 1,470 2,812 13.4

 5 to 9 .............................................. 7,524 636 2,032 2,284 1,266 677 629 13.1

 10 to 19 .......................................... 8,077 637 2,496 1,947 1,120 1,061 816 15.7

 20 to 49 .......................................... 10,556 663 3,148 2,033 1,956 1,365 1,391 12.7

 50 to 99 .......................................... 7,763 598 1,859 1,386 1,786 1,161 973 18.4

 100 to 249 ...................................... 7,378 Q 1,112 1,615 1,695 1,362 1,428 18.8

 250 or More .................................... 8,633 Q 1,004 1,733 2,495 1,369 2,009 17.9

Ownership and Occupancy

 Nongovernment Owned ................. 52,752 6,161 11,030 12,019 10,020 6,238 7,284 7.1

 Owner Occupied .......................... 38,403 3,827 8,209 9,168 7,033 4,707 5,459 7.1

 Nonowner Occupied ..................... 12,273 535 2,704 2,796 2,950 1,531 Q 12.6

 Unoccupied .................................. 2,077 1,798 Q Q Q Q Q 14.9

 Government Owned ....................... 15,124 2,085 3,968 2,027 2,042 2,229 2,773 14.5

Percent of Floorspace Heated

 Not Heated ..................................... 6,211 2,369 1,309 845 541 409 737 24.0

 1 to 50 ............................................ 11,195 1,083 2,579 2,635 1,654 1,771 1,473 18.3

 51 to 99 .......................................... 10,211 467 2,096 2,877 2,227 1,275 1,269 13.4

 100 ................................................. 40,260 4,327 9,015 7,690 7,639 5,012 6,577 7.9

Percent of Floorspace Cooled

 Not Cooled ..................................... 10,835 3,614 2,441 1,828 904 725 1,324 14.4

 1 to 50 ............................................ 21,715 2,176 5,216 5,317 3,796 2,860 2,351 11.2

 51 to 99 .......................................... 13,872 521 2,726 2,784 3,123 2,379 2,340 13.1

 100 ................................................. 21,454 1,935 4,616 4,118 4,238 2,504 4,043 11.0

Percent Lit when Open

 Not Lit ............................................. 3,280 2,853 Q 129 Q Q 88 20.7

 1 to 50 ............................................ 9,980 1,482 2,803 2,242 1,413 1,267 774 15.3

 51 to 99 .......................................... 14,224 1,002 2,993 3,107 3,021 1,760 2,342 14.3

 100 ................................................. 40,393 2,910 9,094 8,568 7,562 5,406 6,853 8.4

Heating Equipment (more than

one may apply)

 Heat Pumps ................................... 8,269 353 1,904 1,852 1,683 900 1,578 16.2

 Furnaces ........................................ 16,909 2,241 3,794 4,053 3,019 2,682 1,121 11.2

 Individual Space Heaters ............... 22,380 2,076 4,460 5,593 4,165 2,717 3,368 10.7

 District Heat .................................... 5,225 332 792 1,051 695 504 1,850 23.3

 Boilers ............................................ 20,664 1,829 4,262 4,104 3,636 2,639 4,194 11.9

 Packaged Heating Units ................. 16,000 784 3,548 3,166 3,832 2,932 1,737 12.6

 Other .............................................. 903 Q Q Q Q Q Q 34.7

Cooling Equipment (more than

one may apply)

 Residential-Type Central

 Air Conditioners .............................. 9,021 912 2,481 2,250 1,329 1,002 1,046 13.2

 Heat Pumps ................................... 8,406 374 1,916 1,757 1,810 945 1,604 16.1

 Individual Air Conditioners ............. 17,979 1,767 3,649 3,303 2,838 2,054 4,368 15.3

 District Chilled Water ...................... 2,066 Q 312 357 178 278 724 29.8

 Central Chillers ............................... 12,991 374 2,013 2,143 3,212 1,358 3,891 18.0

 Packaged Air-Conditioning

 Units ............................................... 27,830 2,088 5,989 5,784 5,879 4,224 3,866 9.5

 Swamp Coolers .............................. 2,085 Q 494 582 287 297 309 28.2

 Other .............................................. 268 Q Q Q Q Q Q 68.5

Lighting Equipment Types (more

than one may apply)

 Incandescent .................................. 39,221 3,940 8,138 8,364 7,105 5,692 5,981 7.6

 Standard Fluorescent ..................... 62,074 5,447 13,833 13,398 11,710 8,266 9,421 7.0

 Compact Fluorescent ..................... 8,336 290 1,126 1,626 1,795 1,556 1,943 16.5

 High-Intensity Discharge ................ 17,570 936 2,914 3,545 3,559 3,148 3,468 12.3

 Other .............................................. 1,612 Q 320 318 367 Q Q 29.1

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 103
Table A20. Weekly Operating Hours, Floorspace, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace by Weekly Operating Hours

RSE

Row

Factor

39 or

Fewer

Hours

40 to 48

Hours

49 to 60

Hours

61 to 84

Hours

85 to 167

Hours

Open

Continuously

0.5 1.2 0.9 0.9 1.1 1.3 1.3

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ........................ 15,241 756 2,951 3,117 3,048 2,637 2,732 12.5

 Natural Lighting Control

 Sensors .......................................... 3,072 Q 391 336 788 532 917 22.2

 Occupancy Sensors ....................... 3,629 Q 757 701 553 777 804 21.8

 Time Clock ..................................... 12,104 465 1,502 2,314 3,054 2,150 2,620 17.3

 Manual Dimmer Switches .............. 12,329 805 1,594 2,398 2,427 2,442 2,664 13.6

 Other .............................................. 2,596 Q 491 574 565 375 499 21.1

Off-Hour Equipment Reduction

(more than one may apply)

 Heating ........................................... 46,248 5,241 11,764 12,021 10,403 6,819 Q 6.7

 Cooling ........................................... 42,768 4,078 10,698 11,114 10,219 6,660 Q 7.1

 Hot Water ....................................... 9,966 1,500 2,409 2,356 2,277 1,425 Q 11.9

 Lighting ........................................... 54,944 6,324 14,685 13,832 11,916 8,187 Q 6.3

 Other .............................................. 7,996 695 1,877 2,284 2,062 1,078 Q 19.1

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program ................... 1,079 Q 221 Q 215 Q 312 29.6

 HVAC Program .............................. 6,370 336 971 1,021 1,645 1,016 1,381 17.1

 Lighting Program ............................ 8,805 469 1,315 1,598 1,720 2,056 1,647 15.5

 Other DSM Programs ..................... 6,176 170 740 881 1,134 1,882 1,368 19.1

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

104 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A21. Occupancy of Government-Owned Buildings, Number of Buildings

 and Floorspace, 1992

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Government-Owned Buildings

All

Buildings

Government-Owned Buildings

All

GovernmentOwned

Buildings Federal State Local

All

GovernmentOwned

Buildings Federal State Local

0.4 0.8 2.1 1.5 0.9 0.4 0.9 2.0 1.5 1.0

All Buildings ................................... 4,806 599 51 117 431 67,876 15,124 1,189 3,766 10,170 9.2

Building Floorspace (square feet)

 1,001 to 5,000 ................................ 2,681 258 25 47 186 7,327 689 65 116 508 13.0

 5,001 to 10,000 .............................. 975 114 Q Q 87 7,199 848 Q Q 662 13.8

 10,001 to 25,000 ............................ 647 108 7 24 76 10,375 1,735 114 391 1,230 14.3

 25,001 to 50,000 ............................ 280 53 Q 14 36 10,069 1,953 Q 508 1,344 16.5

 50,001 to 100,000 .......................... 116 34 Q 7 25 8,062 2,241 Q 508 1,653 12.1

 100,001 to 200,000 ........................ 71 21 Q 5 13 9,678 2,858 Q 613 1,859 16.7

 200,001 to 500,000 ........................ 26 10 Q 3 6 7,889 2,932 Q 885 1,866 20.7

 Over 500,000 ................................. 9 2 (*) Q 1 7,278 1,869 189 632 1,047 30.4

Principal Building Activity

 Education ....................................... 301 201 Q 35 163 8,470 6,961 Q 1,198 5,727 12.3

 Food Sales ..................................... 130 Q Q Q Q 757 Q Q Q Q 34.8

 Food Service ................................. 260 10 Q Q Q 1,491 157 Q Q Q 31.8

 Health Care .................................... 63 13 Q 4 8 1,763 521 Q 158 326 34.7

 Lodging .......................................... 154 15 Q 8 Q 2,891 370 Q 269 Q 28.1

 Mercantile and Service ................... 1,272 63 14 Q 35 12,402 1,082 278 Q Q 21.3

 Office .............................................. 749 69 11 17 41 12,319 1,654 448 528 679 18.5

 Parking Garage .............................. 24 6 Q Q 6 1,652 729 Q Q Q 56.3

 Public Assembly ............................. 278 65 Q 12 50 4,556 1,353 Q 461 861 21.3

 Public Order and Safety ................. 60 49 Q Q 40 820 767 Q Q 537 31.1

 Religious Worship .......................... 366 QQQQ 3,747 Q Q Q Q 26.3

 Warehouse and Storage ................ 761 59 3 Q 47 11,484 599 177 Q 362 20.4

 Other .............................................. 69 16 Q Q Q 1,130 242 Q Q Q 39.8

 Vacant ............................................ 319 34 Q Q 22 4,396 683 Q Q Q 30.4

Year Constructed

 1899 or Before ............................... 169 QQQQ 1,721 Q Q Q Q 29.3

 1900 to 1919 .................................. 255 29 Q Q 18 3,608 904 Q Q 548 31.0

 1920 to 1945 .................................. 724 80 9 17 55 8,712 2,059 218 676 1,165 18.8

 1946 to 1959 .................................. 880 129 Q 37 83 10,421 2,365 Q 516 1,713 16.3

 1960 to 1969 .................................. 783 125 Q 21 100 12,612 4,041 Q 816 2,917 16.0

 1970 to 1979 .................................. 982 117 9 16 93 14,014 3,237 163 796 2,279 16.3

 1980 to 1989 .................................. 884 87 9 18 59 14,287 1,681 166 408 1,107 16.5

 1990 to 1992 .................................. 128 26 Q 5 20 2,502 704 Q 206 390 25.1

Census Region

 Northeast ........................................ 771 88 12 18 58 13,400 3,422 107 747 2,568 16.4

 Midwest .......................................... 1,202 132 6 Q 98 17,280 4,153 268 1,231 2,654 19.0

 South .............................................. 1,963 234 22 34 179 24,577 5,097 547 955 3,595 14.2

 West ............................................... 870 146 11 37 97 12,619 2,452 Q 832 1,354 18.0

Energy Sources (more than one

may apply)

 Electricity ........................................ 4,616 578 43 116 419 66,549 14,948 1,139 3,748 10,060 9.3

 Natural Gas .................................... 2,665 356 18 74 264 45,097 10,945 671 2,800 7,474 11.3

 Fuel Oil ........................................... 559 75 Q 13 52 13,218 3,798 288 940 2,570 15.3

 District Heat .................................... 95 51 Q 24 21 5,339 2,446 375 1,153 918 19.9

 District Chilled Water ...................... 28 18 Q 7 9 2,066 992 Q 449 446 31.6

 Propane .......................................... 337 32 Q Q 23 3,393 699 Q Q 624 26.7

 Any Other ....................................... 163 19 Q Q 12 1,551 469 Q Q 334 32.4

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 105
Table A21. Occupancy of Government-Owned Buildings, Number of Buildings

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Government-Owned Buildings

All

Buildings

Government-Owned Buildings

All

GovernmentOwned

Buildings Federal State Local

All

GovernmentOwned

Buildings Federal State Local

0.4 0.8 2.1 1.5 0.9 0.4 0.9 2.0 1.5 1.0

Energy End Uses (more than one

may apply)

 Heated Buildings ............................ 4,178 537 42 109 386 61,996 14,478 1,134 3,650 9,694 9.4

 Air-Conditioned Buildings ............... 3,502 422 31 90 301 57,041 13,128 1,059 3,328 8,742 10.3

 Buildings with Water

 Heating .......................................... 3,502 449 40 89 320 58,479 13,852 1,093 3,575 9,184 9.6

 Buildings with Cooking ................... 734 117 Q 20 94 23,065 8,064 437 1,813 5,814 14.5

 Buildings with

 Manufacturing ............................... 121 12 Q Q Q 3,174 330 Q Q Q 32.1

Climate Zone: 45-Year Average

 Fewer than 2,000 CDD and --

 More than 7,000 HDD .................. 399 46 Q 8 29 5,623 1,349 Q 524 763 27.9

 5,500-7,000 HDD ......................... 1,134 133 9 32 91 18,024 4,053 431 981 2,641 19.9

 4,000-5,499 HDD ......................... 1,077 114 13 20 82 16,162 4,066 336 968 2,762 21.9

 Fewer than 4,000 HDD ................ 1,101 162 10 26 127 15,251 3,296 213 909 2,175 24.1

 More than 2,000 CDD and --

 Fewer than 4,000 HDD ................ 1,095 144 11 32 102 12,816 2,360 148 384 1,828 19.2

Predominant Exterior Wall

Material

 Masonry ......................................... 3,115 408 32 84 292 48,585 11,929 746 3,203 7,980 9.9

 Siding or Shingles .......................... 764 90 Q Q 63 3,873 354 Q Q 246 19.5

 Metal Panels .................................. 745 75 Q 12 60 7,392 801 Q 134 616 20.4

 Concrete Panels ............................. 87 13 Q 3 7 4,961 1,726 Q 314 1,092 29.0

 Window Glass ................................ 46 9 Q Q Q 2,028 292 Q Q Q 42.9

 Other .............................................. 47 QQQQ 1,037 Q Q Q Q 50.8

Predominant Roof Material

 Built-Up .......................................... 1,642 216 14 36 166 30,257 6,329 728 1,155 4,447 12.3

 Shingles (Not Wood) ...................... 1,381 118 Q 21 82 10,570 1,404 Q 554 747 16.7

 Metal Surfacing .............................. 1,037 116 Q 26 86 9,019 1,203 Q 257 895 18.2

 Synthetic or Rubber ....................... 386 88 9 24 55 11,702 4,431 225 1,315 2,891 17.6

 Slate or Tile .................................... 155 24 Q 6 13 1,998 452 Q 87 322 28.9

 Concrete ......................................... 37 7 Q 2 Q 2,544 906 Q Q Q 48.1

 Other .............................................. 167 30 Q Q 24 1,786 399 Q Q 278 32.7

Floors

 One ................................................ 3,007 380 27 68 285 25,424 4,357 429 615 3,313 12.1

 Two ................................................ 1,154 132 11 26 96 18,025 3,697 183 899 2,616 14.9

 Three .............................................. 446 53 Q 12 32 9,877 3,039 Q 711 2,195 15.5

 Four to Nine ................................... 186 32 5 10 17 10,377 3,309 Q 1,356 1,629 20.4

 Ten or More .................................... 13 2 (*) 1 Q 4,173 722 121 185 Q 27.3

Percent Window Glass

 25 or Less ...................................... 4,193 491 41 96 354 51,356 10,497 891 2,870 6,736 10.5

 26 to 50 .......................................... 490 83 8 15 60 11,815 3,553 232 725 2,595 15.9

 51 to 75 .......................................... 94 19 Q Q 15 3,206 891 Q Q 723 23.2

 76 to 100 ........................................ 29 7 Q Q Q 1,499 184 Q Q Q 42.7

Workers (main shift)

 Less than 5 ..................................... 2,718 253 23 47 184 17,944 1,968 195 301 1,472 14.8

 5 to 9 .............................................. 895 103 13 19 71 7,524 1,000 102 271 628 16.8

 10 to 19 .......................................... 561 93 Q 17 72 8,077 1,665 Q 556 1,045 18.6

 20 to 49 .......................................... 405 92 Q 19 68 10,556 3,056 Q 653 2,251 14.8

 50 to 99 .......................................... 130 32 Q 9 21 7,763 2,631 Q 768 1,729 15.8

 100 to 249 ...................................... 64 18 Q 3 13 7,378 2,785 Q 639 2,002 19.8

 250 or More .................................... 31 7 Q 2 2 8,633 2,019 398 577 1,044 26.0

See footnotes at end of table.

106 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A21. Occupancy of Government-Owned Buildings, Number of Buildings

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Government-Owned Buildings

All

Buildings

Government-Owned Buildings

All

GovernmentOwned

Buildings Federal State Local

All

GovernmentOwned

Buildings Federal State Local

0.4 0.8 2.1 1.5 0.9 0.4 0.9 2.0 1.5 1.0

Weekly Operating Hours

 39 or Fewer .................................... 1,039 122 Q 12 99 8,246 2,085 Q Q 1,636 17.2

 40 to 48 .......................................... 1,278 242 14 48 179 14,998 3,968 324 555 3,089 12.7

 49 to 60 .......................................... 1,004 69 10 10 50 14,046 2,027 Q 402 1,296 17.4

 61 to 84 .......................................... 645 68 Q 20 43 12,062 2,042 Q 548 1,407 15.4

 85 to 167 ........................................ 478 28 Q 8 17 8,467 2,229 Q 729 1,392 22.8

 Open Continuously ......................... 362 70 Q 19 43 10,057 2,773 253 1,169 1,351 20.5

Additional Operating Hours for

Equipment Use

 Heating and/or Cooling .................. 1,223 154 15 24 114 20,300 4,733 408 1,160 3,165 15.9

 Lighting ........................................... 633 58 Q 10 42 12,886 2,970 233 615 2,122 17.9

 Heating and/or Cooling and

 Lighting .......................................... 371 39 Q 6 28 8,717 2,376 Q 549 1,687 21.6

 No Additional Hours ....................... 3,320 427 35 90 302 43,407 9,798 688 2,541 6,570 11.1

Percent Vacant for at Least Three

Months

 1-50 Percent ................................... 362 18 Q 4 12 12,420 1,504 Q 351 966 27.8

 51-99 Percent ................................. 97 7 Q Q Q 2,263 Q Q Q Q 42.3

 100 Percent .................................... 398 81 Q 10 63 4,109 1,025 Q 177 769 24.3

 None ............................................... 3,948 493 40 100 352 49,085 12,075 912 2,887 8,277 9.8

Number of Establishments

 One ................................................ 3,886 527 36 109 382 47,997 12,441 778 2,970 8,694 9.9

 2 to 5 .............................................. 517 32 Q 5 21 7,882 1,139 Q 485 431 24.0

 6 to 10 ............................................ 89 QQQQ 2,562 Q Q Q Q 25.7

 11 to 20 .......................................... 49 QQQQ 2,039 Q Q Q Q 38.4

 More than 20 .................................. 36 QQQQ 4,938 Q Q Q Q 39.2

 Currently Unoccupied ..................... 229 32 Q Q Q 2,457 381 Q Q Q 33.2

Energy-Related Space Functions

(more than one may apply)

 Commercial Food

 Preparation .................................... 735 119 Q 20 95 22,166 8,068 437 1,813 5,819 14.1

 Computer Room ............................. 223 47 5 13 29 14,199 3,847 450 1,004 2,392 16.8

 Rooms with Special

 Ventilation ..................................... 236 53 Q 11 36 8,042 3,277 155 796 2,327 16.6

 Activities with Large

 Amounts of Hot Water ................... 203 25 Q 5 20 6,862 1,807 Q 229 1,493 20.3

Multibuilding Facility

 Part of Multibuilding Facility ........... 1,667 386 28 102 256 31,564 9,755 685 3,145 5,925 12.1

 with Central Physical Plant ........... 223 111 13 43 55 8,395 4,275 376 1,755 2,143 20.2

 No Central Physical Plant ............ 1,444 275 15 60 201 23,170 5,480 308 1,390 3,782 14.1

 Not on Multibuilding Facility ........... 3,139 213 23 15 175 36,312 5,369 504 621 4,244 12.2

Percent of Floorspace Heated

 Not Heated ..................................... 653 66 Q 10 46 6,211 746 Q 198 480 24.8

 1 to 50 ............................................ 688 39 Q 5 32 11,195 1,944 Q Q 1,307 25.8

 51 to 99 .......................................... 618 64 6 11 47 10,211 1,896 Q 347 1,285 19.2

 100 ................................................. 2,846 430 32 92 306 40,260 10,538 718 2,722 7,099 9.6

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 107
Table A21. Occupancy of Government-Owned Buildings, Number of Buildings

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Government-Owned Buildings

All

Buildings

Government-Owned Buildings

All

GovernmentOwned

Buildings Federal State Local

All

GovernmentOwned

Buildings Federal State Local

0.4 0.8 2.4 1.5 0.9 0.4 0.8 1.9 1.5 1.0

Percent of Floorspace Cooled

 Not Cooled ..................................... 1,304 177 20 27 130 10,835 1,996 130 438 1,428 14.5

 1 to 50 ............................................ 1,176 136 11 27 98 21,715 5,301 233 1,270 3,798 16.2

 51 to 99 .......................................... 658 78 9 18 51 13,872 3,663 486 882 2,295 17.0

 100 ................................................. 1,668 209 11 46 152 21,454 4,164 340 1,175 2,649 13.9

Percent Lit when Open

 Not Lit ............................................. 413 36 Q Q 20 3,280 469 Q Q 345 31.8

 1 to 50 ............................................ 881 77 Q 18 55 9,980 1,112 167 Q 489 18.9

 51 to 99 .......................................... 813 110 14 23 73 14,224 2,976 248 767 1,961 14.9

 100 ................................................. 2,699 377 24 70 283 40,393 10,566 691 2,500 7,375 11.0

Heating Equipment (more than

one may apply)

 Heat Pumps ................................... 449 51 Q 12 37 8,269 1,158 Q 236 884 22.3

 Furnaces ........................................ 1,692 150 12 29 108 16,909 2,315 197 606 1,513 18.7

 Individual Space Heaters ............... 1,464 175 Q 38 131 22,380 4,556 175 1,313 3,068 13.6

 District Heat .................................... 93 50 Q 23 20 5,225 2,384 360 1,138 886 20.5

 Boilers ............................................ 624 147 14 25 108 20,664 7,356 403 1,665 5,287 12.4

 Packaged Heating Units ................. 870 93 5 11 77 16,000 2,574 Q 232 2,170 19.8

 Other .............................................. 42 Q Q Q Q 903 Q Q Q Q 49.5

Heating Distribution Equipment

(more than one may apply)

 Radiators or Baseboards ............... 473 116 12 21 82 13,263 5,546 375 1,348 3,822 14.6

 Ducts for Heating ......................... 2,955 346 28 68 250 45,422 9,887 902 2,388 6,597 10.9

 Heating Only .............................. 577 90 Q 13 68 5,950 2,194 Q 449 1,698 22.3

 Heating and Cooling ................... 2,378 257 19 55 183 39,472 7,693 855 1,940 4,899 11.4

 Variable Air-Volume

 System Used ............................. 210 48 5 10 33 11,528 3,388 255 839 2,295 19.3

 Fan Coil Units for Heating ............ 99 34 Q 12 19 5,474 2,021 178 712 1,131 19.0

 Heating Only .............................. 78 23 Q Q 13 3,569 1,224 Q 301 807 22.8

 Heating and Cooling ................... 21 11 Q 5 6 1,906 797 Q 411 324 30.0

 Individual Space Heaters ............... 1,464 175 Q 38 131 22,380 4,556 175 1,313 3,068 13.6

 Other .............................................. 181 25 Q Q 18 3,310 739 Q Q 557 29.9

Cooling Equipment (more than

one may apply)

 Residential-Type Central Air

 Conditioners .................................. 816 76 Q 17 56 9,021 1,593 Q 490 991 18.7

 Heat Pumps ................................... 454 50 Q 12 36 8,406 1,035 Q 238 741 21.4

 Individual Air

 Conditioners .................................. 1,023 134 12 28 94 17,979 5,232 212 1,262 3,758 14.8

 District Chilled Water ...................... 28 18 Q 7 9 2,066 992 Q 449 446 31.7

 Central Chillers ............................... 142 52 5 14 33 12,991 4,200 542 1,177 2,481 18.2

 Packaged Air-Conditioning

 Units .............................................. 1,459 153 11 24 117 27,830 5,375 417 1,365 3,593 13.8

 Swamp Coolers .............................. 179 25 Q Q 14 2,085 434 Q Q 139 44.9

 Other .............................................. 8 Q Q Q Q 268 Q Q Q Q 96.7

See footnotes at end of table.

108 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A21. Occupancy of Government-Owned Buildings, Number of Buildings

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Government-Owned Buildings

All

Buildings

Government-Owned Buildings

All

GovernmentOwned

Buildings Federal State Local

All

GovernmentOwned

Buildings Federal State Local

0.4 0.8 2.4 1.5 0.9 0.4 0.8 1.9 1.5 1.0

Cooling Distribution Equipment

(more than one may apply)

 Ducts for Cooling ............................ 2,733 313 23 71 220 47,755 10,014 990 2,632 6,392 10.9

 Cooling Only ................................. 355 56 Q 16 37 8,283 2,321 Q 692 1,493 21.0

 Heating and Cooling ..................... 2,378 257 19 55 183 39,472 7,693 855 1,940 4,899 11.4

 Variable Air-Volume

 System Used ............................... 221 40 6 11 23 12,430 3,133 306 1,187 1,640 17.1

 Fan Coil Units for Cooling .............. 56 19 Q 7 12 3,875 1,449 Q 582 788 24.3

 Cooling Only ................................. 35 8 Q Q 6 1,969 652 Q Q 464 41.6

 Heating and Cooling ..................... 21 11 Q 5 6 1,906 797 Q 411 324 30.0

 Individual Air

 Conditioners .................................. 1,023 134 12 28 94 17,979 5,232 212 1,262 3,758 14.8

 Other .............................................. 111 19 Q Q 17 2,919 599 Q Q 499 36.4

Lighting Equipment Types (more

than one may apply)

 Incandescent .................................. 2,509 267 20 59 189 39,221 8,765 548 2,059 6,157 11.0

 Standard Fluorescent ..................... 4,065 530 41 105 384 62,074 14,583 1,059 3,677 9,847 9.3

 Compact Fluorescent ..................... 206 32 Q 5 23 8,336 2,230 143 524 1,564 21.5

 High-Intensity Discharge ................ 354 78 Q 15 57 17,570 6,195 414 1,555 4,227 13.7

 Other .............................................. 78 QQQQ 1,612 Q Q Q Q 40.2

Personal Computers and/or

Computer Terminals

 1 to 4 .............................................. 1,269 136 12 30 95 13,355 1,559 243 435 881 15.3

 5 to 9 .............................................. 336 44 Q 6 33 5,970 813 Q 195 545 20.9

 10 to 19 .......................................... 216 55 Q 8 41 6,236 1,720 Q 317 1,265 18.3

 20 to 49 .......................................... 164 57 Q 13 42 7,439 2,494 Q 517 1,917 16.8

 50 to 99 .......................................... 59 24 Q 4 18 4,908 2,309 Q 441 1,572 19.4

 100 to 249 ...................................... 34 13 Q 5 7 4,220 1,967 Q 709 1,206 23.6

 250 or More .................................... 19 4 (*) 1 2 5,569 1,446 181 278 987 26.7

Building Shell Conservation

Features (more than one may

apply)

 Roof or Ceiling Insulation ............... 3,343 422 40 77 306 50,311 12,023 979 2,986 8,058 9.7

 Wall Insulation ................................ 2,320 259 26 48 185 33,240 5,768 509 1,381 3,879 11.4

 Storm or Multiple Glazing ............... 1,680 184 22 32 130 29,684 5,988 628 1,429 3,931 11.5

 Tinted, Reflective or Shading

 Glass ............................................. 1,068 122 12 19 91 25,396 5,250 510 1,198 3,542 14.8

 Exterior or Interior Shading

 or Awnings .................................... 1,853 263 22 52 189 34,071 7,749 652 2,125 4,973 11.4

 Windows that Open ........................ 2,119 378 32 67 280 28,937 9,030 474 1,802 6,754 10.8

HVAC Conservation Features

(more than one may apply)

 Variable Air-Volume System .......... 250 54 6 12 36 13,970 4,009 307 1,256 2,446 17.6

 Economizer Cycle .......................... 414 77 11 18 47 18,313 5,393 719 1,556 3,118 15.3

 HVAC Maintenance ........................ 2,503 425 34 93 298 49,173 13,179 1,006 3,366 8,807 10.2

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 109
Table A21. Occupancy of Government-Owned Buildings, Number of Buildings

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Government-Owned Buildings

All

Buildings

Government-Owned Buildings

All

GovernmentOwned

Buildings Federal State Local

All

GovernmentOwned

Buildings Federal State Local

0.4 0.8 2.4 1.5 0.9 0.4 0.8 1.9 1.5 1.0

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ........................ 574 92 14 17 61 15,241 4,008 423 1,226 2,359 16.8

 Natural Lighting Control

 Sensors ......................................... 74 11 Q 1 9 3,072 681 Q Q 290 31.1

 Occupancy Sensors ....................... 59 14 Q 4 8 3,629 1,076 350 Q 370 27.8

 Time Clock ..................................... 339 37 Q 6 28 12,104 1,915 143 355 1,418 24.8

 Manual Dimmer Switches .............. 413 33 Q 9 21 12,329 2,605 Q 756 1,737 21.7

 Other .............................................. 78 24 Q Q 15 2,596 989 Q Q 532 29.6

Energy Conservation Features

(more than one may apply)

 Any Conservation Features ............ 4,357 565 49 113 404 64,403 14,773 1,106 3,731 9,936 9.3

 Building Shell ................................. 4,223 539 48 102 389 62,056 14,168 1,083 3,390 9,695 9.3

 HVAC ............................................. 2,604 432 34 94 304 50,281 13,276 1,015 3,376 8,885 10.1

 Lighting ........................................... 1,178 156 18 33 105 29,453 6,593 701 1,836 4,057 13.0

 Other .............................................. 264 44 Q 7 33 5,952 1,554 225 284 1,046 16.4

Off-Hour Equipment Reduction

(more than one may apply)

 Heating ........................................... 3,400 408 29 74 305 46,248 10,572 765 2,218 7,589 9.8

 Cooling ........................................... 2,872 321 24 58 239 42,768 9,727 758 2,083 6,886 10.8

 Hot Water ....................................... 578 73 5 10 58 9,966 2,914 180 429 2,306 15.7

 Lighting ........................................... 4,089 494 33 95 366 54,944 11,908 870 2,546 8,492 9.4

 Other .............................................. 547 52 Q 10 36 7,996 1,767 Q Q 1,092 19.8

Energy Management Practices

(more than one may apply)

 Energy Management

 and Control

 System .......................................... 236 75 7 14 54 14,320 4,873 505 1,413 2,955 16.5

 Demand-Side Management

 Participation .................................. 315 86 11 16 59 11,310 4,279 407 923 2,949 17.2

 Energy Audit ................................... 521 122 Q 30 80 14,779 4,505 423 1,328 2,755 13.9

 Building Energy

 Manager ........................................ 49 18 Q Q 13 2,311 777 Q Q 561 36.5

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program ................... 36 13 Q Q Q 1,079 367 Q Q Q 37.4

 HVAC Program .............................. 154 49 Q 6 39 6,370 2,250 Q 570 1,495 21.7

 Lighting Program ............................ 228 62 Q 14 39 8,805 3,313 376 730 2,207 20.6

 Other DSM Programs ..................... 110 38 Q 6 23 6,176 2,494 245 551 1,698 24.0

(*) = Value rounds to zero in the units displayed.

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

110 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A22. Occupancy of Nongovernment-Owned Buildings,

 Number of Buildings, 1992

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.7 0.7 0.8 1.3 2.1

All Buildings ..................................... 4,806 4,206 3,192 817 197 5.0

Building Floorspace (square feet)

 1,001 to 5,000 .................................. 2,681 2,423 1,859 437 127 7.0

 5,001 to 10,000 ................................ 975 861 660 167 34 6.9

 10,001 to 25,000 .............................. 647 540 396 126 18 8.8

 25,001 to 50,000 .............................. 280 228 169 47 12 10.1

 50,001 to 100,000 ............................ 116 82 57 22 Q 12.4

 100,001 to 200,000 .......................... 71 50 38 11 Q 13.7

 200,001 to 500,000 .......................... 26 16 11 5 Q 16.2

 Over 500,000 ................................... 9 7 4 Q Q 32.2

Principal Building Activity

 Education ......................................... 301 99 89 Q Q 15.1

 Food Sales ....................................... 130 130 107 24 Q 19.9

 Food Service ................................... 260 250 200 51 Q 12.2

 Health Care ...................................... 63 51 37 Q Q 20.9

 Lodging ............................................ 154 139 135 Q Q 15.9

 Mercantile and Service .................... 1,272 1,210 907 303 Q 7.0

 Office ............................................... 749 680 524 155 Q 7.7

 Parking Garage ................................ 24 18 16 Q Q 35.6

 Public Assembly .............................. 278 213 191 23 Q 12.2

 Public Order and Safety ................... 60 QQQQ 27.4

 Religious Worship ............................ 366 365 349 Q Q 13.3

 Warehouse and Storage .................. 761 702 533 170 Q 9.6

 Other ................................................ 69 53 42 Q Q 26.3

 Vacant .............................................. 319 285 54 34 197 12.1

Year Constructed

 1899 or Before ................................. 169 163 135 23 Q 20.0

 1900 to 1919 .................................... 255 226 175 39 Q 15.6

 1920 to 1945 .................................... 724 644 478 122 45 9.7

 1946 to 1959 .................................... 880 751 561 147 43 8.8

 1960 to 1969 .................................... 783 659 495 130 34 9.1

 1970 to 1979 .................................... 982 865 657 171 36 9.0

 1980 to 1989 .................................... 884 797 606 171 20 8.7

 1990 to 1992 .................................... 128 102 85 14 Q 22.9

Census Region

 Northeast ......................................... 771 683 552 112 19 12.4

 Midwest ............................................ 1,202 1,070 844 173 53 9.5

 South ............................................... 1,963 1,729 1,267 361 101 7.9

 West ................................................. 870 725 529 171 24 15.6

Energy Sources (more than one

may apply)

 Electricity ......................................... 4,616 4,037 3,127 796 114 5.0

 Natural Gas ...................................... 2,665 2,309 1,814 458 37 6.7

 Fuel Oil ............................................ 559 483 413 63 Q 14.9

 District Heat ..................................... 95 44 35 9 Q 23.1

 District Chilled Water ....................... 28 11 9 Q Q 33.3

 Propane ........................................... 337 305 240 57 Q 18.6

 Any Other ......................................... 163 144 125 Q Q 16.8

Energy End Uses (more than one

may apply)

 Heated Buildings .............................. 4,178 3,641 2,875 701 65 5.1

 Air-Conditioned Buildings ................ 3,502 3,079 2,393 641 45 5.6

 Buildings with Water

 Heating ........................................... 3,502 3,053 2,414 589 49 5.6

 Buildings with Cooking ..................... 734 617 496 114 Q 8.3

 Buildings with

 Manufacturing ................................. 121 108 83 21 Q 20.3

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 111
Table A22. Occupancy of Nongovernment-Owned Buildings,

 Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.7 0.7 0.8 1.3 2.1

Climate Zone: 45-Year Average

 Fewer than 2,000 CDD

 and --

 More than 7,000 HDD .................... 399 353 291 53 Q 19.1

 5,500-7,000 HDD ........................... 1,134 1,001 812 151 39 14.2

 4,000-5,499 HDD ........................... 1,077 962 733 187 43 18.7

 Fewer than 4,000 HDD .................. 1,101 939 686 211 42 18.8

 More than 2,000 CDD

 and --

 Fewer than 4,000 HDD .................. 1,095 951 670 216 64 12.2

Predominant Exterior Wall Material

 Masonry ........................................... 3,115 2,707 2,015 570 122 5.5

 Siding or Shingles ............................ 764 675 548 87 39 10.6

 Metal Panels .................................... 745 669 525 115 29 11.3

 Concrete Panels .............................. 87 75 42 29 Q 17.5

 Window Glass .................................. 46 38 25 11 Q 28.4

 Other ................................................ 47 43 39 4 Q 30.3

Predominant Roof Material

 Built-Up ............................................ 1,642 1,427 958 392 76 6.3

 Shingles (Not Wood) ........................ 1,381 1,264 1,059 164 41 8.0

 Metal Surfacing ................................ 1,037 921 697 165 59 9.4

 Synthetic or Rubber ......................... 386 298 234 55 Q 9.9

 Slate or Tile ...................................... 155 131 104 22 Q 17.9

 Concrete .......................................... 37 30 21 7 Q 36.7

 Other ................................................ 167 137 119 13 Q 19.8

Floors

 One .................................................. 3,007 2,626 1,945 542 140 6.9

 Two .................................................. 1,154 1,022 805 177 40 6.8

 Three ............................................... 446 393 313 66 Q 10.9

 Four to Nine ..................................... 186 154 122 30 Q 16.5

 Ten or More ..................................... 13 11 8 2 Q 21.2

Percent Window Glass

 25 or Less ........................................ 4,193 3,702 2,802 716 185 5.3

 26 to 50 ............................................ 490 407 315 83 Q 7.8

 51 to 75 ............................................ 94 75 59 14 Q 21.3

 76 to 100 .......................................... 29 22 17 Q Q 27.3

Workers (main shift)

 Less than 5 ...................................... 2,718 2,465 1,856 419 191 6.7

 5 to 9 ................................................ 895 792 628 162 Q 7.1

 10 to 19 ............................................ 561 469 356 110 Q 9.0

 20 to 49 ............................................ 405 312 232 79 Q 8.4

 50 to 99 ............................................ 130 98 70 27 Q 12.8

 100 to 249 ........................................ 64 46 33 13 Q 13.0

 250 or More ..................................... 31 25 18 7 Q 12.1

Weekly Operating Hours

 39 or Fewer ...................................... 1,039 917 646 99 173 8.8

 40 to 48 ............................................ 1,278 1,036 787 241 Q 6.9

 49 to 60 ............................................ 1,004 934 723 201 Q 7.4

 61 to 84 ............................................ 645 577 437 138 Q 7.1

 85 to 167 .......................................... 478 450 354 96 Q 10.2

 Open Continuously .......................... 362 292 245 43 Q 12.7

See footnotes at end of table.

112 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A22. Occupancy of Nongovernment-Owned Buildings,

 Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.7 0.7 0.8 1.3 2.1

Additional Operating Hours for

Equipment Use

 Heating and/or Cooling .................... 1,223 1,069 893 173 Q 10.6

 Lighting ............................................ 633 575 448 121 Q 11.4

 Heating and/or Cooling and

 Lighting ........................................... 371 332 272 59 Q 16.1

 No Additional Hours ......................... 3,320 2,894 2,124 581 188 6.5

Percent Vacant for at Least Three

Months

 1-50 Percent .................................... 362 344 200 144 Q 7.6

 51-99 Percent .................................. 97 90 58 31 Q 16.9

 100 Percent ..................................... 398 317 92 31 194 12.7

 None ................................................ 3,948 3,456 2,842 611 Q 5.7

Number of Establishments

 One .................................................. 3,886 3,359 2,864 495 Q 6.0

 2 to 5 ................................................ 517 485 257 228 Q 7.7

 6 to 10 .............................................. 89 83 40 43 Q 15.5

 11 to 20 ............................................ 49 48 21 26 Q 23.9

 More than 20 .................................... 36 35 10 25 Q 21.4

 Currently Unoccupied ...................... 229 197 Q Q 197 10.6

Energy-Related Space Functions

(more than one may apply)

 Commercial Food

 Preparation ..................................... 735 616 497 112 Q 8.3

 Computer Room .............................. 223 176 138 36 Q 13.9

 Rooms with Special

 Ventilation ....................................... 236 183 149 33 Q 14.2

 Activities with Large

 Amounts of Hot Water .................... 203 178 145 31 Q 12.2

Multibuilding Facility

 Part of Multibuilding Facility ............. 1,667 1,280 1,019 220 42 8.6

 with Central Physical Plant ............ 223 112 100 10 Q 21.5

 No Central Physical Plant .............. 1,444 1,169 919 210 40 8.7

 Not on Multibuilding Facility ............. 3,139 2,926 2,173 597 155 5.1

Percent of Floorspace Heated

 Not Heated ....................................... 653 587 330 121 136 10.2

 1 to 50 .............................................. 688 649 477 155 16 9.2

 51 to 99 ............................................ 618 555 433 121 Q 8.3

 100 ................................................... 2,846 2,416 1,953 419 45 6.2

Percent of Floorspace Cooled

 Not Cooled ....................................... 1,304 1,127 799 176 151 8.1

 1 to 50 .............................................. 1,176 1,040 789 236 16 7.8

 51 to 99 ............................................ 658 580 457 122 Q 8.8

 100 ................................................... 1,668 1,459 1,148 282 29 8.0

Percent Lit when Open

 Not Lit .............................................. 413 377 161 39 177 12.6

 1 to 50 .............................................. 881 805 617 183 Q 7.9

 51 to 99 ............................................ 813 703 557 142 Q 7.3

 100 ................................................... 2,699 2,322 1,858 452 Q 5.9

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 113
Table A22. Occupancy of Nongovernment-Owned Buildings,

 Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.6 0.7 0.7 1.2 3.0

Heating Equipment (more than one

may apply)

 Heat Pumps ..................................... 449 398 318 70 Q 13.2

 Furnaces .......................................... 1,692 1,542 1,237 280 25 7.3

 Individual Space Heaters ................. 1,464 1,289 1,018 245 26 8.0

 District Heat ..................................... 93 44 34 9 Q 25.3

 Boilers .............................................. 624 477 404 68 Q 9.1

 Packaged Heating Units .................. 870 777 585 186 Q 10.8

 Other ................................................ 42 41 32 Q Q 37.4

Heating Distribution Equipment

(more than one may apply)

 Radiators or Baseboards ................. 473 357 311 45 Q 11.4

 Ducts for Heating ........................... 2,955 2,609 2,056 512 40 5.6

 Heating Only ................................ 577 488 416 62 Q 13.1

 Heating and Cooling .................... 2,378 2,121 1,639 450 31 6.2

 Variable Air-Volume

 System Used .............................. 210 162 133 28 Q 12.9

 Fan Coil Units for

 Heating ......................................... 99 65 46 15 Q 18.1

 Heating Only ................................ 78 55 39 13 Q 20.9

 Heating and Cooling .................... 21 10 7 Q Q 37.6

 Individual Space Heaters ................. 1,464 1,289 1,018 245 26 8.0

 Other ................................................ 181 157 128 27 Q 15.7

Cooling Equipment (more than one

may apply)

 Residential-Type Central Air

 Conditioners .................................... 816 741 576 153 Q 11.5

 Heat Pumps ..................................... 454 404 326 69 Q 12.9

 Individual Air

 Conditioners .................................... 1,023 889 711 168 Q 9.1

 District Chilled Water ....................... 28 11 9 Q Q 37.0

 Central Chillers ................................ 142 90 72 16 Q 15.5

 Packaged Air-Conditioning

 Units ................................................ 1,459 1,306 991 302 13 8.4

 Swamp Coolers ............................... 179 154 111 40 Q 29.9

 Other ................................................ 8 QQQQ 74.0

Cooling Distribution Equipment

(more than one may apply)

 Ducts for Cooling ............................. 2,733 2,420 1,868 515 37 6.0

 Cooling Only .................................. 355 299 229 64 Q 14.4

 Heating and Cooling ...................... 2,378 2,121 1,639 450 31 6.2

 Variable Air-Volume

 System Used ................................ 221 181 145 34 Q 12.6

 Fan Coil Units for

 Cooling ............................................ 56 37 29 8 Q 28.8

 Cooling Only .................................. 35 28 21 Q Q 38.1

 Heating and Cooling ...................... 21 10 7 Q Q 37.6

 Individual Air

 Conditioners .................................... 1,023 889 711 168 Q 9.1

 Other ................................................ 111 93 66 26 Q 26.6

Lighting Equipment Types (more

than one may apply)

 Incandescent ................................... 2,509 2,241 1,814 416 11 7.2

 Standard Fluorescent ...................... 4,065 3,535 2,776 721 38 5.3

 Compact Fluorescent ....................... 206 174 141 34 Q 14.3

 High-Intensity Discharge .................. 354 275 223 51 Q 11.2

 Other ................................................ 78 74 51 22 Q 24.1

See footnotes at end of table.

114 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A22. Occupancy of Nongovernment-Owned Buildings,

 Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.6 0.7 0.7 1.2 3.0

Personal Computers and/or

Computer Terminals

 1 to 4 ................................................ 1,269 1,133 884 249 Q 6.9

 5 to 9 ................................................ 336 292 217 75 Q 10.1

 10 to 19 ............................................ 216 161 113 48 Q 13.4

 20 to 49 ............................................ 164 107 82 24 Q 17.3

 50 to 99 ............................................ 59 35 25 9 Q 16.9

 100 to 249 ........................................ 34 21 17 4 Q 22.7

 250 or More ..................................... 19 15 12 3 Q 24.5

Building Shell Conservation

Features (more than one may

apply)

 Roof or Ceiling Insulation ................. 3,343 2,921 2,297 535 89 5.6

 Wall Insulation ................................. 2,320 2,061 1,660 334 68 6.5

 Storm or Multiple Glazing ................ 1,680 1,496 1,209 242 45 7.4

 Tinted, Reflective or

 Shading Glass ................................ 1,068 946 738 183 25 8.3

 Exterior or Interior Shading

 or Awnings ...................................... 1,853 1,590 1,220 337 32 7.1

 Windows that Open ......................... 2,119 1,741 1,420 260 61 6.9

HVAC Conservation Features

(more than one may apply)

 Variable Air-Volume

 System ............................................ 250 196 157 36 Q 12.1

 Economizer Cycle ............................ 414 337 262 70 Q 12.7

 HVAC Maintenance ......................... 2,503 2,078 1,696 365 17 6.9

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ......................... 574 482 366 110 Q 11.9

 Natural Lighting Control

 Sensors ........................................... 74 63 57 5 Q 23.4

 Occupancy Sensors ......................... 59 46 39 7 Q 21.9

 Time Clock ....................................... 339 301 224 75 Q 12.0

 Manual Dimmer Switches ................ 413 380 326 53 Q 13.0

 Other ................................................ 78 54 41 10 Q 24.6

Energy Conservation Features

(more than one may apply)

 Any Conservation

 Features .......................................... 4,357 3,792 2,929 717 145 5.3

 Building Shell ................................... 4,223 3,684 2,841 699 144 5.3

 HVAC ............................................... 2,604 2,172 1,763 387 21 6.5

 Lighting ............................................ 1,178 1,022 810 202 9 8.7

 Other ................................................ 264 219 192 24 Q 15.8

Off-Hour Equipment Reduction

(more than one may apply)

 Heating ............................................ 3,400 2,991 2,332 613 46 5.6

 Cooling ............................................. 2,872 2,550 1,960 557 34 6.1

 Hot Water ......................................... 578 505 395 82 28 10.4

 Lighting ............................................ 4,089 3,596 2,785 743 68 5.2

 Other ................................................ 547 495 372 117 Q 14.3

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 115
Table A22. Occupancy of Nongovernment-Owned Buildings,

 Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.6 0.7 0.7 1.2 3.0

Energy Management Practices

(more than one may apply)

 Energy Management

 and Control

 System ............................................ 236 161 134 24 Q 13.1

 Demand-Side Management

 Participation .................................... 315 229 199 27 Q 13.7

 Energy Audit .................................... 521 399 334 64 Q 11.1

 Building Energy

 Manager .......................................... 49 32 27 3 Q 29.7

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program .................... 36 23 18 Q Q 32.3

 HVAC Program ................................ 154 104 89 13 Q 17.1

 Lighting Program ............................. 228 165 146 19 Q 17.0

 Other DSM Programs ...................... 110 72 62 10 Q 21.3

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

116 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A23. Occupancy of Nongovernment-Owned Buildings, Floorspace, 1992

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace of All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.7 0.7 0.7 1.4 2.1

All Buildings ..................................... 67,876 52,752 38,403 12,273 2,077 5.6

Building Floorspace (square feet)

 1,001 to 5,000 .................................. 7,327 6,638 5,119 1,172 347 7.6

 5,001 to 10,000 ................................ 7,199 6,351 4,861 1,251 239 6.9

 10,001 to 25,000 .............................. 10,375 8,640 6,343 2,017 279 8.6

 25,001 to 50,000 .............................. 10,069 8,116 6,054 1,645 418 10.6

 50,001 to 100,000 ............................ 8,062 5,821 4,026 1,516 Q 12.3

 100,001 to 200,000 .......................... 9,678 6,820 5,178 1,527 Q 14.0

 200,001 to 500,000 .......................... 7,889 4,957 3,484 1,252 Q 16.5

 Over 500,000 ................................... 7,278 5,409 3,337 Q Q 28.6

Principal Building Activity

 Education ......................................... 8,470 1,508 1,402 Q Q 14.6

 Food Sales ....................................... 757 757 584 173 Q 22.3

 Food Service ................................... 1,491 1,334 1,076 258 Q 16.1

 Health Care ...................................... 1,763 1,242 1,139 Q Q 16.7

 Lodging ............................................ 2,891 2,520 2,272 Q Q 19.8

 Mercantile and Service .................... 12,402 11,319 7,797 3,522 Q 9.5

 Office ............................................... 12,319 10,665 7,848 2,816 Q 8.7

 Parking Garage ................................ 1,652 923 828 Q Q 42.3

 Public Assembly .............................. 4,556 3,203 2,105 Q Q 29.4

 Public Order and Safety ................... 820 QQQQ 35.4

 Religious Worship ............................ 3,747 3,742 3,694 Q Q 17.5

 Warehouse and Storage .................. 11,484 10,885 7,829 3,056 Q 12.6

 Other ................................................ 1,130 888 748 Q Q 22.9

 Vacant .............................................. 4,396 3,713 1,029 607 2,077 15.4

Year Constructed

 1899 or Before ................................. 1,721 1,589 1,224 332 Q 21.2

 1900 to 1919 .................................... 3,608 2,704 1,978 486 Q 20.2

 1920 to 1945 .................................... 8,712 6,653 4,783 1,453 417 15.4

 1946 to 1959 .................................... 10,421 8,056 6,237 1,426 393 12.4

 1960 to 1969 .................................... 12,612 8,571 6,737 1,491 344 11.3

 1970 to 1979 .................................... 14,014 10,776 8,024 2,435 317 9.3

 1980 to 1989 .................................... 14,287 12,606 8,113 4,178 314 15.2

 1990 to 1992 .................................... 2,502 1,798 1,307 472 Q 18.7

Census Region

 Northeast ......................................... 13,400 9,978 7,311 2,350 316 13.6

 Midwest ............................................ 17,280 13,127 10,421 2,211 495 9.4

 South ............................................... 24,577 19,480 13,503 5,177 800 10.4

 West ................................................. 12,619 10,167 7,168 2,534 465 9.5

Energy Sources (more than one

may apply)

 Electricity ......................................... 66,549 51,601 38,162 12,156 1,283 5.9

 Natural Gas ...................................... 45,097 34,151 26,187 7,466 498 6.4

 Fuel Oil ............................................ 13,218 9,420 7,627 1,600 Q 11.2

 District Heat ..................................... 5,339 2,893 2,541 350 Q 17.6

 District Chilled Water ....................... 2,066 1,074 896 Q Q 27.3

 Propane ........................................... 3,393 2,694 2,066 589 Q 18.1

 Any Other ......................................... 1,551 1,082 964 Q Q 31.1

Energy End Uses (more than one

may apply)

 Heated Buildings .............................. 61,996 47,518 35,293 11,404 821 6.0

 Air-Conditioned Buildings ................ 57,041 43,913 32,220 11,001 692 7.2

 Buildings with Water

 Heating ........................................... 58,479 44,627 33,171 10,804 651 6.5

 Buildings with Cooking ..................... 23,065 15,001 10,893 4,018 Q 12.4

 Buildings with

 Manufacturing ................................. 3,174 2,844 2,274 480 Q 19.7

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 117
Table A23. Occupancy of Nongovernment-Owned Buildings, Floorspace, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace of All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.7 0.7 0.7 1.4 2.1

Climate Zone: 45-Year Average

 Fewer than 2,000 CDD

 and --

 More than 7,000 HDD .................... 5,623 4,274 3,265 856 Q 19.3

 5,500-7,000 HDD ........................... 18,024 13,971 11,145 2,429 397 13.4

 4,000-5,499 HDD ........................... 16,162 12,096 8,582 3,034 481 12.8

 Fewer than 4,000 HDD .................. 15,251 11,955 8,781 2,628 546 15.4

 More than 2,000 CDD

 and --

 Fewer than 4,000 HDD .................. 12,816 10,456 6,630 3,325 501 16.1

Predominant Exterior Wall Material

 Masonry ........................................... 48,585 36,656 26,445 8,944 1,267 7.2

 Siding or Shingles ............................ 3,873 3,519 2,935 394 190 12.3

 Metal Panels .................................... 7,392 6,591 5,126 1,197 268 13.8

 Concrete Panels .............................. 4,961 3,235 1,890 1,166 Q 18.0

 Window Glass .................................. 2,028 1,736 1,202 380 Q 22.4

 Other ................................................ 1,037 1,015 804 192 Q 30.8

Predominant Roof Material

 Built-Up ............................................ 30,257 23,928 15,568 7,450 910 9.1

 Shingles (Not Wood) ........................ 10,570 9,166 7,642 1,212 313 11.2

 Metal Surfacing ................................ 9,019 7,817 6,013 1,412 392 9.8

 Synthetic or Rubber ......................... 11,702 7,271 5,401 1,647 Q 10.4

 Slate or Tile ...................................... 1,998 1,546 1,352 147 Q 19.3

 Concrete .......................................... 2,544 1,638 1,335 147 Q 30.7

 Other ................................................ 1,786 1,387 1,091 258 Q 24.5

Floors

 One .................................................. 25,424 21,067 13,597 6,536 934 9.1

 Two .................................................. 18,025 14,328 11,140 2,697 491 8.2

 Three ............................................... 9,877 6,838 5,355 1,262 Q 11.3

 Four to Nine ..................................... 10,377 7,068 5,794 1,029 Q 14.4

 Ten or More ..................................... 4,173 3,451 2,517 749 Q 19.1

Percent Window Glass

 25 or Less ........................................ 51,356 40,859 29,506 9,658 1,696 6.4

 26 to 50 ............................................ 11,815 8,262 6,143 1,809 Q 10.1

 51 to 75 ............................................ 3,206 2,316 1,762 514 Q 16.5

 76 to 100 .......................................... 1,499 1,315 992 292 Q 27.5

Workers (main shift)

 Less than 5 ...................................... 17,944 15,976 10,973 3,044 1,959 12.2

 5 to 9 ................................................ 7,524 6,524 5,015 1,486 Q 8.6

 10 to 19 ............................................ 8,077 6,412 4,933 1,437 Q 12.5

 20 to 49 ............................................ 10,556 7,501 5,586 1,880 Q 8.8

 50 to 99 ............................................ 7,763 5,132 3,584 1,549 Q 16.8

 100 to 249 ........................................ 7,378 4,593 3,110 1,472 Q 17.2

 250 or More ..................................... 8,633 6,614 5,202 1,405 Q 13.2

Weekly Operating Hours

 39 or Fewer ...................................... 8,246 6,161 3,827 535 1,798 9.7

 40 to 48 ............................................ 14,998 11,030 8,209 2,704 Q 8.9

 49 to 60 ............................................ 14,046 12,019 9,168 2,796 Q 8.0

 61 to 84 ............................................ 12,062 10,020 7,033 2,950 Q 11.0

 85 to 167 .......................................... 8,467 6,238 4,707 1,531 Q 10.4

 Open Continuously .......................... 10,057 7,284 5,459 Q Q 18.6

See footnotes at end of table.

118 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A23. Occupancy of Nongovernment-Owned Buildings, Floorspace, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace of All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.7 0.7 0.7 1.4 2.1

Additional Operating Hours for

Equipment Use

 Heating and/or Cooling .................... 20,300 15,568 12,335 3,181 Q 7.7

 Lighting ............................................ 12,886 9,917 7,461 2,370 Q 10.8

 Heating and/or Cooling

 and Lighting .................................... 8,717 6,341 5,001 1,297 Q 13.8

 No Additional Hours ......................... 43,407 33,609 23,607 8,019 1,983 7.3

Percent Vacant for at Least Three

Months

 1-50 Percent .................................... 12,420 10,916 6,897 4,018 Q 11.2

 51-99 Percent .................................. 2,263 1,744 1,148 577 Q 21.8

 100 Percent ..................................... 4,109 3,083 679 380 2,023 13.1

 None ................................................ 49,085 37,010 29,679 7,297 Q 6.8

Number of Establishments

 One .................................................. 47,997 35,556 29,992 5,565 Q 8.0

 2 to 5 ................................................ 7,882 6,743 3,536 3,208 Q 11.7

 6 to 10 .............................................. 2,562 2,423 1,015 1,408 Q 15.8

 11 to 20 ............................................ 2,039 1,806 954 852 Q 22.4

 More than 20 .................................... 4,938 4,147 2,907 1,240 Q 20.2

 Currently Unoccupied ...................... 2,457 2,077 Q Q 2,077 12.6

Energy-Related Space Functions

(more than one may apply)

 Commercial Food

 Preparation ..................................... 22,166 14,098 10,890 3,119 Q 9.0

 Computer Room .............................. 14,199 10,353 7,652 2,599 Q 11.5

 Rooms with Special

 Ventilation ....................................... 8,042 4,764 3,845 866 Q 12.7

 Activities with Large

 Amounts of Hot Water .................... 6,862 5,055 4,101 931 Q 13.4

Multibuilding Facility

 Part of Multibuilding Facility ............. 31,564 21,809 15,994 5,231 584 10.4

 with Central Physical Plant ............ 8,395 4,120 3,800 306 Q 16.3

 No Central Physical Plant .............. 23,170 17,690 12,194 4,925 570 11.5

 Not on Multibuilding Facility ............. 36,312 30,943 22,409 7,041 1,492 5.3

Percent of Floorspace Heated

 Not Heated ....................................... 6,211 5,465 3,193 948 1,324 14.8

 1 to 50 .............................................. 11,195 9,251 6,610 2,456 185 14.3

 51 to 99 ............................................ 10,211 8,314 6,130 2,152 Q 10.4

 100 ................................................... 40,260 29,722 22,470 6,717 535 7.9

Percent of Floorspace Cooled

 Not Cooled ....................................... 10,835 8,839 6,183 1,271 1,385 10.1

 1 to 50 .............................................. 21,715 16,415 12,079 3,949 387 9.6

 51 to 99 ............................................ 13,872 10,209 7,727 2,444 Q 10.1

 100 ................................................... 21,454 17,290 12,414 4,608 267 11.3

Percent Lit when Open

 Not Lit .............................................. 3,280 2,810 770 231 1,810 14.1

 1 to 50 .............................................. 9,980 8,868 7,015 1,770 Q 10.3

 51 to 99 ............................................ 14,224 11,248 8,128 3,057 Q 13.8

 100 ................................................... 40,393 29,827 22,490 7,215 Q 6.7

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 119
Table A23. Occupancy of Nongovernment-Owned Buildings, Floorspace, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace of All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.6 0.7 0.6 1.5 2.9

Heating Equipment (more than one

may apply)

 Heat Pumps ..................................... 8,269 7,111 5,146 1,865 Q 13.0

 Furnaces .......................................... 16,909 14,594 10,985 3,360 249 8.7

 Individual Space Heaters ................. 22,380 17,823 13,610 3,795 419 8.5

 District Heat ..................................... 5,225 2,840 2,491 347 Q 19.3

 Boilers .............................................. 20,664 13,309 10,172 2,993 Q 13.6

 Packaged Heating Units .................. 16,000 13,425 9,074 4,257 Q 10.0

 Other ................................................ 903 760 540 Q Q 34.1

Heating Distribution Equipment

(more than one may apply)

 Radiators or Baseboards ................. 13,263 7,717 6,572 1,078 Q 10.6

 Ducts for Heating ........................... 45,422 35,535 25,751 9,315 469 6.7

 Heating Only ................................ 5,950 3,756 3,210 446 Q 16.6

 Heating and Cooling .................... 39,472 31,779 22,542 8,869 368 7.3

 Variable Air-Volume

 System Used .............................. 11,528 8,140 5,915 2,185 Q 21.7

 Fan Coil Units for

 Heating ......................................... 5,474 3,453 2,661 714 Q 18.4

 Heating Only ................................ 3,569 2,344 1,781 486 Q 23.7

 Heating and Cooling .................... 1,906 1,109 880 Q Q 27.2

 Individual Space Heaters ................. 22,380 17,823 13,610 3,795 419 8.5

 Other ................................................ 3,310 2,571 1,979 583 Q 22.5

Cooling Equipment (more than one

may apply)

 Residential-Type Central Air

 Conditioners .................................... 9,021 7,428 5,783 1,591 Q 11.3

 Heat Pumps ..................................... 8,406 7,370 5,361 1,878 Q 12.7

 Individual Air

 Conditioners .................................... 17,979 12,747 9,416 3,194 Q 16.3

 District Chilled Water ....................... 2,066 1,074 896 Q Q 31.0

 Central Chillers ................................ 12,991 8,791 6,524 2,091 Q 20.6

 Packaged Air-Conditioning

 Units ................................................ 27,830 22,455 15,947 6,239 269 7.7

 Swamp Coolers ............................... 2,085 1,651 1,049 582 Q 26.8

 Other ................................................ 268 QQQQ 64.7

Cooling Distribution Equipment

(more than one may apply)

 Ducts for Cooling ............................. 47,755 37,741 27,003 10,124 615 7.7

 Cooling Only .................................. 8,283 5,962 4,461 1,255 Q 13.1

 Heating and Cooling ...................... 39,472 31,779 22,542 8,869 368 7.3

 Variable Air-Volume

 System Used ................................ 12,430 9,296 6,695 2,482 Q 18.9

 Fan Coil Units for

 Cooling ............................................ 3,875 2,425 2,066 359 Q 25.1

 Cooling Only .................................. 1,969 1,317 1,186 Q Q 43.6

 Heating and Cooling ...................... 1,906 1,109 880 Q Q 27.2

 Individual Air

 Conditioners .................................... 17,979 12,747 9,416 3,194 Q 16.3

 Other ................................................ 2,919 2,319 1,723 573 Q 25.8

Lighting Equipment Types (more

than one may apply)

 Incandescent ................................... 39,221 30,456 24,018 6,198 240 7.3

 Standard Fluorescent ...................... 62,074 47,490 35,290 11,653 548 6.6

 Compact Fluorescent ....................... 8,336 6,105 5,089 1,016 Q 13.8

 High-Intensity Discharge .................. 17,570 11,374 8,747 2,571 Q 12.3

 Other ................................................ 1,612 1,496 1,052 427 Q 26.6

See footnotes at end of table.

120 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A23. Occupancy of Nongovernment-Owned Buildings, Floorspace, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace of All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.6 0.7 0.6 1.5 2.9

Personal Computers and/or

Computer Terminals

 1 to 4 ................................................ 13,355 11,796 9,027 2,765 Q 8.5

 5 to 9 ................................................ 5,970 5,156 3,604 1,553 Q 12.3

 10 to 19 ............................................ 6,236 4,516 3,137 1,379 Q 18.1

 20 to 49 ............................................ 7,439 4,946 3,515 1,401 Q 18.0

 50 to 99 ............................................ 4,908 2,600 1,869 730 Q 18.6

 100 to 249 ........................................ 4,220 2,252 1,812 434 Q 19.9

 250 or More ..................................... 5,569 4,123 3,298 825 Q 17.2

Building Shell Conservation

Features (more than one may

apply)

 Roof or Ceiling Insulation ................. 50,311 38,288 28,012 9,262 1,014 6.5

 Wall Insulation ................................. 33,240 27,472 20,366 6,417 688 7.9

 Storm or Multiple Glazing ................ 29,684 23,696 17,450 5,788 458 9.3

 Tinted, Reflective or

 Shading Glass ................................ 25,396 20,146 14,347 5,371 428 11.3

 Exterior or Interior Shading

 or Awnings ...................................... 34,071 26,322 18,809 6,927 586 8.5

 Windows that Open ......................... 28,937 19,907 16,151 3,174 582 7.7

HVAC Conservation Features

(more than one may apply)

 Variable Air-Volume

 System ............................................ 13,970 9,961 7,331 2,508 Q 19.0

 Economizer Cycle ............................ 18,313 12,921 9,150 3,644 Q 14.0

 HVAC Maintenance ......................... 49,173 35,994 27,164 8,415 415 8.1

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ......................... 15,241 11,234 8,385 2,694 Q 10.2

 Natural Lighting Control

 Sensors ........................................... 3,072 2,392 1,920 385 Q 18.7

 Occupancy Sensors ......................... 3,629 2,553 2,147 406 Q 19.1

 Time Clock ....................................... 12,104 10,189 6,876 3,156 Q 17.7

 Manual Dimmer Switches ................ 12,329 9,724 8,102 1,568 Q 12.2

 Other ................................................ 2,596 1,607 1,225 341 Q 18.4

Energy Conservation Features

(more than one may apply)

 Any Conservation

 Features .......................................... 64,403 49,630 36,377 11,630 1,624 6.1

 Building Shell ................................... 62,056 47,889 35,043 11,369 1,477 6.0

 HVAC ............................................... 50,281 37,005 27,762 8,755 488 7.8

 Lighting ............................................ 29,453 22,860 16,990 5,551 319 10.6

 Other ................................................ 5,952 4,398 3,763 536 Q 13.9

Off-Hour Equipment Reduction

(more than one may apply)

 Heating ............................................ 46,248 35,676 26,466 8,684 526 6.0

 Cooling ............................................. 42,768 33,041 24,214 8,430 398 6.6

 Hot Water ......................................... 9,966 7,052 5,029 1,765 258 10.4

 Lighting ............................................ 54,944 43,036 31,884 10,338 814 5.3

 Other ................................................ 7,996 6,228 4,231 1,939 Q 17.9

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 121
Table A23. Occupancy of Nongovernment-Owned Buildings, Floorspace, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Floorspace of All Nongovernment-Owned Buildings

RSE

Row

Factor

All

Buildings Owner Occupied

Nonowner

Occupied Unoccupied

0.6 0.7 0.6 1.5 2.9

Energy Management Practices

(more than one may apply)

 Energy Management

 and Control

 System ............................................ 14,320 9,447 7,105 2,307 Q 18.6

 Demand-Side

 Management

 Participation .................................... 11,310 7,030 5,883 1,105 Q 11.2

 Energy Audit .................................... 14,779 10,274 8,475 1,753 Q 10.3

 Building Energy

 Manager .......................................... 2,311 1,534 1,398 129 Q 27.7

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program .................... 1,079 712 611 Q Q 30.3

 HVAC Program ................................ 6,370 4,120 3,407 701 Q 14.3

 Lighting Program ............................. 8,805 5,492 4,691 772 Q 13.4

 Other DSM Programs ...................... 6,176 3,682 2,999 682 Q 15.7

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

122 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A24. Percent Vacant for at Least Three Months, Number of Buildings and

 Floorspace, 1992

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Percent Vacant for at Least

Three Months

All

Buildings

Percent Vacant for at Least

Three Months

None 1 to 50 51 to 99 100 None 1 to 50 51 to 99 100

0.5 0.5 1.0 1.9 1.5 0.5 0.6 1.1 2.4 1.6

All Buildings ................................... 4,806 3,948 362 97 398 67,876 49,085 12,420 2,263 4,109 6.8

Building Floorspace (square feet)

 1,001 to 5,000 ................................ 2,681 2,281 103 45 253 7,327 6,175 328 141 683 10.1

 5,001 to 10,000 .............................. 975 790 95 24 65 7,199 5,841 710 177 471 9.5

 10,001 to 25,000 ............................ 647 503 82 12 50 10,375 8,055 1,349 183 788 11.4

 25,001 to 50,000 ............................ 280 216 36 8 21 10,069 7,784 1,270 283 733 13.3

 50,001 to 100,000 .......................... 116 85 21 4 6 8,062 5,939 1,441 269 412 13.8

 100,001 to 200,000 ........................ 71 51 14 Q 3 9,678 6,867 2,011 Q 362 18.6

 200,001 to 500,000 ........................ 26 17 7 1 1 7,889 5,157 2,188 229 315 21.0

 Over 500,000 ................................. 9 5 3 Q Q 7,278 3,267 3,122 Q Q 39.0

Principal Building Activity

 Education ....................................... 301 253 Q Q 36 8,470 7,489 Q Q 540 15.8

 Food Sales ..................................... 130 128 Q Q Q 757 753 Q Q Q 27.7

 Food Service ................................. 260 242 Q Q Q 1,491 1,256 Q Q Q 17.0

 Health Care .................................... 63 55 7 Q Q 1,763 1,434 315 Q Q 27.2

 Lodging .......................................... 154 124 12 Q Q 2,891 2,526 219 Q Q 25.8

 Mercantile and Service ................... 1,272 1,161 81 Q 19 12,402 8,697 3,471 Q 100 13.2

 Office .............................................. 749 584 142 15 8 12,319 6,722 5,155 356 86 12.8

 Parking Garage .............................. 24 22 Q Q Q 1,652 1,465 Q Q Q 48.2

 Public Assembly ............................. 278 236 7 Q 27 4,556 3,789 480 Q 134 25.5

 Public Order and Safety ................. 60 59 Q Q Q 820 776 Q Q Q 39.4

 Religious Worship .......................... 366 344 Q Q Q 3,747 3,625 Q Q Q 20.8

 Warehouse and Storage ................ 761 674 52 Q 25 11,484 9,519 1,464 Q 331 15.9

 Other .............................................. 69 56 Q Q Q 1,130 926 Q Q Q 31.8

 Vacant ............................................ 319 Q 29 42 240 4,396 Q 433 1,226 2,630 13.7

Year Constructed

 1899 or Before ............................... 169 117 32 Q Q 1,721 1,073 398 Q Q 24.1

 1900 to 1919 .................................. 255 188 33 Q 20 3,608 2,035 801 Q 413 21.7

 1920 to 1945 .................................. 724 572 53 20 80 8,712 6,435 1,108 485 684 15.4

 1946 to 1959 .................................. 880 746 36 15 83 10,421 8,304 1,272 189 656 13.9

 1960 to 1969 .................................. 783 668 30 9 76 12,612 9,438 2,158 227 788 14.4

 1970 to 1979 .................................. 982 841 65 9 67 14,014 10,377 2,598 344 694 13.4

 1980 to 1989 .................................. 884 719 100 18 46 14,287 9,855 3,515 425 491 14.4

 1990 to 1992 .................................. 128 97 13 Q 16 2,502 1,568 569 Q 269 24.5

Census Region

 Northeast ........................................ 771 633 86 8 44 13,400 9,120 3,021 508 752 14.3

 Midwest .......................................... 1,202 990 87 24 101 17,280 12,392 3,501 441 946 13.0

 South .............................................. 1,963 1,625 114 47 177 24,577 18,799 3,609 792 1,377 10.1

 West ............................................... 870 700 76 18 76 12,619 8,775 2,289 521 1,034 15.7

Energy Sources (more than one

may apply)

 Electricity ........................................ 4,616 3,881 353 92 289 66,549 48,799 12,390 2,246 3,114 7.0

 Natural Gas .................................... 2,665 2,284 207 59 114 45,097 32,937 8,826 1,788 1,546 9.0

 Fuel Oil ........................................... 559 487 53 5 15 13,218 8,753 3,586 460 420 16.2

 District Heat .................................... 95 81 8 2 Q 5,339 3,550 1,234 270 Q 21.3

 District Chilled Water ...................... 28 22 4 Q Q 2,066 1,320 516 Q Q 35.0

 Propane .......................................... 337 294 17 Q 25 3,393 2,711 495 Q 174 24.9

 Any Other ....................................... 163 145 Q Q Q 1,551 1,280 Q Q Q 28.2

Energy End Uses (more than one

may apply)

 Heated Buildings ............................ 4,178 3,564 329 85 200 61,996 45,565 11,905 2,122 2,405 7.3

 Air-Conditioned Buildings ............... 3,502 2,978 307 70 147 57,041 41,320 11,837 2,009 1,875 7.6

 Buildings with Water Heating ......... 3,502 2,975 306 67 154 58,479 42,707 11,837 1,961 1,975 7.7

 Buildings with Cooking ................... 734 627 69 10 29 23,065 15,836 5,943 733 553 13.5

 Buildings with Manufacturing ......... 121 104 7 Q Q 3,174 2,088 750 Q Q 26.2

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 123
Table A24. Percent Vacant for at Least Three Months, Number of Buildings and

 Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Percent Vacant for at Least

Three Months

All

Buildings

Percent Vacant for at Least

Three Months

None 1 to 50 51 to 99 100 None 1 to 50 51 to 99 100

0.5 0.5 1.0 1.9 1.5 0.5 0.6 1.1 2.4 1.6

Ownership and Occupancy

 Nongovernment Owned ................. 4,206 3,456 344 90 317 52,752 37,010 10,916 1,744 3,083 6.6

 Owner Occupied .......................... 3,192 2,842 200 58 92 38,403 29,679 6,897 1,148 679 8.0

 Nonowner Occupied ..................... 817 611 144 31 31 12,273 7,297 4,018 577 380 12.5

 Unoccupied .................................. 197 Q Q Q 194 2,077 Q Q Q 2,023 13.0

 Government Owned ....................... 599 493 18 7 81 15,124 12,075 1,504 Q 1,025 16.2

Percent of Floorspace Heated

 Not Heated ..................................... 653 402 36 Q 202 6,211 3,636 559 Q 1,792 17.2

 1 to 50 ............................................ 688 531 62 45 49 11,195 7,458 2,112 1,020 606 14.0

 51 to 99 .......................................... 618 516 84 7 11 10,211 6,887 3,021 210 94 14.4

 100 ................................................. 2,846 2,499 179 32 136 40,260 31,105 6,729 809 1,617 8.9

Percent of Floorspace Cooled

 Not Cooled ..................................... 1,304 970 55 27 251 10,835 7,765 583 253 2,233 12.2

 1 to 50 ............................................ 1,176 980 98 40 58 21,715 16,406 3,003 1,183 1,124 10.6

 51 to 99 .......................................... 658 559 84 7 8 13,872 8,727 4,844 196 105 15.0

 100 ................................................. 1,668 1,439 125 23 81 21,454 16,187 3,990 630 646 11.5

Percent Lit when Open

 Not Lit ............................................. 413 163 Q Q 226 3,280 740 Q Q 2,418 16.6

 1 to 50 ............................................ 881 694 97 59 31 9,980 6,886 1,290 1,460 344 12.3

 51 to 99 .......................................... 813 678 102 12 21 14,224 9,240 4,459 259 265 13.9

 100 ................................................. 2,699 2,413 148 18 120 40,393 32,219 6,601 492 1,081 9.9

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ........................ 574 478 65 6 24 15,241 10,009 4,331 430 470 14.3

 Natural Lighting Control

 Sensors .......................................... 74 62 12 Q Q 3,072 1,826 1,093 Q Q 23.9

 Occupancy Sensors ....................... 59 46 10 Q Q 3,629 2,496 864 Q Q 20.8

 Time Clock ..................................... 339 267 53 11 8 12,104 6,991 4,293 539 282 17.8

 Manual Dimmer Switches .............. 413 354 45 10 5 12,329 8,072 3,723 400 134 16.2

 Other .............................................. 78 60 10 Q Q 2,596 1,918 429 Q Q 24.7

Energy Conservation Features

(more than one may apply)

 Any Conservation Features ............ 4,357 3,617 336 86 318 64,403 46,647 12,146 2,165 3,445 7.3

 Building Shell ................................. 4,223 3,498 329 84 312 62,056 44,651 12,027 2,097 3,282 7.4

 HVAC ............................................. 2,604 2,228 234 41 101 50,281 36,157 10,649 1,774 1,701 8.6

 Lighting ........................................... 1,178 991 132 25 30 29,453 20,140 7,548 1,030 734 10.9

 Other .............................................. 264 232 21 Q Q 5,952 4,621 957 Q 166 18.2

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program ................... 36 29 5 Q Q 1,079 725 301 Q Q 34.7

 HVAC Program .............................. 154 121 22 6 Q 6,370 4,271 1,849 184 Q 17.3

 Lighting Program ............................ 228 193 27 5 Q 8,805 5,918 2,458 317 Q 17.5

 Other DSM Programs ..................... 110 90 16 Q Q 6,176 4,110 1,917 Q Q 21.9

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

124 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A25. Multibuilding Facility, Number of Buildings and Floorspace, 

 1992

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Part of Multibuilding Facility

All

Buildings

Part of Multibuilding Facility

All

Buildings in

Multibuilding

Facilities

Buildings in

Multibuilding

Facilities

with Central

Physical

Plant

All

Buildings in

Multibuilding

Facilities

Buildings in

Multibuilding

Facilities

with Central

Physical

Plant

0.6 0.9 1.6 0.7 1.0 1.6

All Buildings ..................................... 4,806 1,667 223 67,876 31,564 8,395 6.0

Building Floorspace (square feet)

 1,001 to 5,000 .................................. 2,681 858 76 7,327 2,315 194 9.5

 5,001 to 10,000 ................................ 975 334 38 7,199 2,447 274 7.9

 10,001 to 25,000 .............................. 647 244 47 10,375 3,834 732 8.3

 25,001 to 50,000 .............................. 280 123 32 10,069 4,399 1,132 10.1

 50,001 to 100,000 ............................ 116 49 11 8,062 3,354 749 10.6

 100,001 to 200,000 .......................... 71 37 10 9,678 5,083 1,292 13.9

 200,001 to 500,000 .......................... 26 15 7 7,889 4,665 2,089 13.2

 Over 500,000 ................................... 9 7 2 7,278 5,467 1,933 26.6

Principal Building Activity

 Education ......................................... 301 217 54 8,470 5,115 1,458 11.6

 Food Sales ....................................... 130 Q Q 757 Q Q 21.7

 Food Service ................................... 260 47 Q 1,491 415 Q 16.6

 Health Care ...................................... 63 27 9 1,763 1,156 766 16.1

 Lodging ............................................ 154 107 15 2,891 1,578 729 15.2

 Mercantile and Service .................... 1,272 281 20 12,402 4,691 Q 12.4

 Office ............................................... 749 236 44 12,319 4,978 1,882 10.6

 Parking ............................................. 24 12 2 1,652 1,155 Q 33.8

 Public Assembly .............................. 278 102 19 4,556 2,717 500 19.3

 Public Order and Safety ................... 60 18 Q 820 427 Q 33.4

 Religious Worship ............................ 366 86 Q 3,747 930 Q 16.6

 Warehouse ...................................... 761 396 28 11,484 5,963 611 13.0

 Other ................................................ 69 44 7 1,130 750 348 22.3

 Vacant .............................................. 319 84 7 4,396 1,613 448 18.2

Year Constructed

 1899 or Before ................................. 169 47 3 1,721 498 107 21.2

 1900 to 1919 .................................... 255 61 14 3,608 979 214 19.1

 1920 to 1945 .................................... 724 193 26 8,712 3,567 1,291 13.9

 1946 to 1959 .................................... 880 298 61 10,421 4,589 1,149 11.3

 1960 to 1969 .................................... 783 275 42 12,612 6,429 2,364 11.0

 1970 to 1979 .................................... 982 372 28 14,014 6,761 1,770 10.4

 1980 to 1989 .................................... 884 355 35 14,287 7,368 1,086 11.6

 1990 to 1992 .................................... 128 66 14 2,502 1,374 414 17.7

Census Region

 Northeast ......................................... 771 254 33 13,400 5,614 1,954 12.1

 Midwest ............................................ 1,202 364 50 17,280 7,445 2,697 11.7

 South ............................................... 1,963 698 89 24,577 12,426 2,280 10.3

 West ................................................. 870 350 51 12,619 6,080 1,463 11.6

Energy Sources (more than one

may apply)

 Electricity ......................................... 4,616 1,587 220 66,549 31,027 8,340 6.1

 Natural Gas ...................................... 2,665 767 105 45,097 19,999 5,381 7.2

 Fuel Oil ............................................ 559 181 32 13,218 6,497 2,170 10.8

 District Heat ..................................... 95 83 82 5,339 4,506 4,253 11.7

 District Chilled Water ....................... 28 27 27 2,066 1,784 1,710 17.4

 Propane ........................................... 337 121 5 3,393 1,562 277 20.1

 Any Other ......................................... 163 53 Q 1,551 592 Q 22.6

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 125
Table A25. Multibuilding Facility, Number of Buildings and Floorspace, 

 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Part of Multibuilding Facility

All

Buildings

Part of Multibuilding Facility

All

Buildings in

Multibuilding

Facilities

Buildings in

Multibuilding

Facilities

with Central

Physical

Plant

All

Buildings in

Multibuilding

Facilities

Buildings in

Multibuilding

Facilities

with Central

Physical

Plant

0.6 0.9 1.6 0.7 1.0 1.6

Energy End Uses (more than one

may apply)

 Heated Buildings .............................. 4,178 1,338 208 61,996 28,365 8,088 6.3

 Air-Conditioned Buildings ................ 3,502 1,090 174 57,041 26,158 7,402 6.8

 Buildings with Water Heating ........... 3,502 1,070 175 58,479 26,766 7,895 6.5

 Buildings with Cooking ..................... 734 199 33 23,065 11,516 3,526 10.5

 Buildings with Manufacturing ........... 121 45 9 3,174 1,523 587 20.2

Workers (main shift)

 Less than 5 ...................................... 2,718 931 84 17,944 7,519 1,201 11.1

 5 to 9 ................................................ 895 279 32 7,524 2,769 489 10.9

 10 to 19 ............................................ 561 194 46 8,077 3,648 908 12.3

 20 to 49 ............................................ 405 163 34 10,556 4,574 1,010 9.8

 50 to 99 ............................................ 130 50 12 7,763 3,306 900 11.9

 100 to 249 ........................................ 64 34 7 7,378 4,706 1,326 13.1

 250 or More ..................................... 31 17 8 8,633 5,042 2,560 12.8

Weekly Operating Hours

 39 or Fewer ...................................... 1,039 336 30 8,246 2,970 594 12.5

 40 to 48 ............................................ 1,278 508 96 14,998 7,118 1,428 8.7

 49 to 60 ............................................ 1,004 298 25 14,046 5,417 1,037 10.2

 61 to 84 ............................................ 645 206 17 12,062 5,526 1,070 11.3

 85 to 167 .......................................... 478 118 15 8,467 3,878 1,437 14.7

 Open Continuously .......................... 362 201 39 10,057 6,655 2,830 12.4

Ownership and Occupancy

 Nongovernment Owned ................... 4,206 1,280 112 52,752 21,809 4,120 7.0

 Owner Occupied ............................ 3,192 1,019 100 38,403 15,994 3,800 6.8

 Nonowner Occupied ...................... 817 220 10 12,273 5,231 306 14.9

 Unoccupied .................................... 197 42 Q 2,077 584 Q 20.2

 Government Owned ......................... 599 386 111 15,124 9,755 4,275 9.9

Principal Facility Activity

Education

 Primary or Secondary ...................... 211 211 52 4,046 4,046 859 13.5

 College ............................................. 48 48 29 2,485 2,485 1,732 18.2

 Other ................................................ 26 26 Q 364 364 Q 34.6

Retail Sales and Service

 Shopping Center/Mall ...................... 55 55 Q 2,352 2,352 Q 21.6

 Automotive Sales and Service ......... 79 79 Q 667 667 Q 23.3

 Other ................................................ 231 231 Q 1,798 1,798 Q 15.2

Other

 Office ............................................... 140 140 13 3,931 3,931 1,162 17.3

 Warehouse ...................................... 229 229 Q 4,992 4,992 Q 16.8

 Industrial/Manufacturing .................. 119 119 47 2,124 2,124 1,206 19.1

 Hospital or Other Health

 Service ............................................. 56 56 20 2,193 2,193 1,444 16.4

 Religious Activities ........................... 153 153 Q 1,397 1,397 Q 16.8

 Hotel/Motel ....................................... 77 77 Q 802 802 Q 24.4

 Amusement or Recreation ............... 92 92 7 Q Q Q 20.9

 Transportation .................................. 35 35 Q 1,103 1,103 Q 38.0

 Residential ....................................... Q Q Q Q Q NF Q

 Agricultural ....................................... 30 30 Q 160 160 Q 42.8

See footnotes at end of table.

126 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A25. Multibuilding Facility, Number of Buildings and Floorspace, 

 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Part of Multibuilding Facility

All

Buildings

Part of Multibuilding Facility

All

Buildings in

Multibuilding

Facilities

Buildings in

Multibuilding

Facilities

with Central

Physical

Plant

All

Buildings in

Multibuilding

Facilities

Buildings in

Multibuilding

Facilities

with Central

Physical

Plant

0.6 0.9 1.6 0.7 1.0 1.6

Central Plant that Produces (more

than one may apply)

 District Hot Water ............................. 129 129 129 4,598 4,598 4,598 14.2

 District Steam .................................. 125 125 125 5,534 5,534 5,534 14.0

 District Chilled Water ....................... 91 91 91 4,191 4,191 4,191 15.3

 Electricity ......................................... 65 65 65 1,903 1,903 1,903 25.6

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program .................... 36 21 5 1,079 478 169 25.9

 HVAC Program ................................ 154 74 23 6,370 3,541 1,623 14.6

 Lighting Program ............................. 228 96 27 8,805 4,630 2,262 14.5

 Other DSM Programs ...................... 110 49 22 6,176 3,379 1,945 16.6

NF = No applicable RSE row factor.

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for

explanation of abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings

Energy Consumption Survey.

Energy Information Administration/Commercial Buildings Characteristrics 1992 127
Table A26. Energy-Related Space Functions, Number of Buildings, 1992

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.5 0.9 1.2 1.3 1.4

All Buildings ..................................... 4,806 735 223 236 203 6.4

Building Floorspace (square feet)

 1,001 to 5,000 .................................. 2,681 323 37 80 74 11.7

 5,001 to 10,000 ................................ 975 136 31 52 29 13.9

 10,001 to 25,000 .............................. 647 114 46 44 47 11.0

 25,001 to 50,000 .............................. 280 70 41 25 26 12.3

 50,001 to 100,000 ............................ 116 44 31 17 12 12.1

 100,001 to 200,000 .......................... 71 29 24 11 9 13.6

 200,001 to 500,000 .......................... 26 15 10 6 6 14.6

 Over 500,000 ................................... 95421 19.6

Principal Building Activity

 Education ......................................... 301 98 32 28 12 13.2

 Food Sales ....................................... 130 40 Q Q Q 26.9

 Food Service ................................... 260 246 Q Q 18 12.9

 Health Care ...................................... 63 8 5 11 9 27.1

 Lodging ............................................ 154 37 6 Q 50 19.8

 Mercantile and Service .................... 1,272 89 39 54 62 12.5

 Office ............................................... 749 30 81 35 14 14.2

 Parking Garage ................................ 24 QQQQ 44.4

 Public Assembly .............................. 278 81 4 18 18 18.4

 Public Order and Safety ................... 60 QQQQ 35.0

 Religious Worship ............................ 366 68 Q Q Q 20.7

 Warehouse and Storage .................. 761 13 20 20 Q 21.2

 Other ................................................ 69 Q 11 16 7 25.8

 Vacant .............................................. 319 18 5 Q Q 24.8

Year Constructed

 1899 or Before ................................. 169 41 Q Q Q 20.9

 1900 to 1919 .................................... 255 42 12 Q Q 20.5

 1920 to 1945 .................................... 724 101 26 25 25 15.4

 1946 to 1959 .................................... 880 134 33 39 42 12.0

 1960 to 1969 .................................... 783 122 43 38 45 12.6

 1970 to 1979 .................................... 982 155 44 54 44 11.8

 1980 to 1989 .................................... 884 120 51 51 35 11.3

 1990 to 1992 .................................... 128 21 6 10 5 22.3

Census Region

 Northeast ......................................... 771 142 50 45 37 12.8

 Midwest ............................................ 1,202 203 55 61 53 11.1

 South ............................................... 1,963 257 67 77 71 11.3

 West ................................................. 870 134 51 52 41 15.8

Energy Sources (more than one

may apply)

 Electricity ......................................... 4,616 735 223 236 203 6.4

 Natural Gas ...................................... 2,665 533 149 162 154 7.5

 Fuel Oil ............................................ 559 101 51 43 23 13.4

 District Heat ..................................... 95 19 11 17 6 18.2

 District Chilled Water ....................... 28 8532 28.4

 Propane ........................................... 337 84 18 22 29 21.6

 Any Other ......................................... 163 13 Q Q Q 25.9

See footnotes at end of table.

128 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A26. Energy-Related Space Functions, Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.5 0.9 1.2 1.3 1.4

Energy End Uses (more than one

may apply)

 Heated Buildings .............................. 4,178 714 222 229 194 6.4

 Air-Conditioned Buildings ................ 3,502 661 223 215 164 6.6

 Buildings with Water Heating ........... 3,502 729 211 219 202 6.4

 Buildings with Cooking ..................... 734 732 53 70 80 8.2

 Buildings with Manufacturing ........... 121 13 16 19 8 26.7

Predominant Exterior Wall

Materials

 Masonry ........................................... 3,115 544 159 167 169 7.0

 Siding or Shingles ............................ 764 129 11 18 20 19.7

 Metal Panels .................................... 745 31 23 34 Q 18.0

 Concrete Panels .............................. 87 15 15 10 7 20.3

 Window Glass .................................. 46 15 9 Q Q 29.5

 Other ................................................ 47 1 5 Q Q 38.4

Predominant Roof Materials

 Built-Up ............................................ 1,642 283 102 92 72 8.3

 Shingles (Not Wood) ........................ 1,381 234 29 51 59 11.6

 Metal Surfacing ................................ 1,037 76 25 41 20 17.8

 Synthetic or Rubber ......................... 386 80 51 37 36 12.5

 Slate or Tile ...................................... 155 22 7 8 10 24.5

 Concrete .......................................... 37 7 2 Q Q 40.2

 Other ................................................ 167 33 7 Q Q 25.9

Floors

 One .................................................. 3,007 379 79 123 93 9.4

 Two .................................................. 1,154 191 61 61 62 9.8

 Three ............................................... 446 103 43 29 31 13.3

 Four to Nine ..................................... 186 54 34 21 15 17.2

 Ten or More ..................................... 13 7623 20.9

Workers (main shift)

 Less than 5 ...................................... 2,718 260 30 75 71 12.1

 5 to 9 ................................................ 895 156 32 50 33 13.4

 10 to 19 ............................................ 561 126 26 38 39 13.2

 20 to 49 ............................................ 405 105 56 38 32 11.4

 50 to 99 ............................................ 130 43 30 19 17 13.0

 100 to 249 ........................................ 64 26 29 10 8 13.4

 250 or More ..................................... 31 18 20 6 4 12.0

Weekly Operating Hours

 39 or Fewer ...................................... 1,039 116 13 13 Q 18.6

 40 to 48 ............................................ 1,278 90 76 76 21 13.9

 49 to 60 ............................................ 1,004 83 46 46 21 12.5

 61 to 84 ............................................ 645 149 44 34 43 11.6

 85 to 167 .......................................... 478 220 20 41 47 12.7

 Open Continuously .......................... 362 77 23 27 62 13.2

Ownership and Occupancy

 Nongovernment Owned ................... 4,206 616 176 183 178 6.9

 Owner Occupied ............................ 3,192 497 138 149 145 7.4

 Nonowner Occupied ...................... 817 112 36 33 31 14.8

 Unoccupied .................................... 197 QQQQ 20.0

 Government Owned ......................... 599 119 47 53 25 12.7

Multibuilding Facility

 Part of Multibuilding Facility ............. 1,667 198 107 101 84 9.7

 with Central Physical Plant ............ 223 33 19 25 16 16.1

 No Central Physical Plant .............. 1,444 165 89 76 68 11.2

 Not on Multibuilding Facility ............. 3,139 537 115 135 119 7.5

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 129
Table A26. Energy-Related Space Functions, Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.5 0.9 1.2 1.3 1.4

Percent of Floorspace Heated

 Not Heated ....................................... 653 21 Q Q Q 22.4

 1 to 50 .............................................. 688 58 34 30 18 15.5

 51 to 99 ............................................ 618 135 38 41 32 13.6

 100 ................................................... 2,846 521 151 158 142 6.9

Percent of Floorspace Cooled

 Not Cooled ....................................... 1,304 75 Q 21 39 16.3

 1 to 50 .............................................. 1,176 158 73 84 47 10.4

 51 to 99 ............................................ 658 178 56 45 45 11.0

 100 ................................................... 1,668 324 93 86 72 9.0

Heating Equipment (more than one

may apply)

 Heat Pumps ..................................... 449 79 22 28 22 17.3

 Furnaces .......................................... 1,692 259 63 75 66 10.2

 Individual Space Heaters ................. 1,464 180 70 77 76 9.6

 District Heat ..................................... 93 18 11 17 6 18.3

 Boilers .............................................. 624 176 78 58 58 8.9

 Packaged Heating Units .................. 870 217 66 64 51 11.7

 Other ................................................ 42 18 6 Q Q 37.0

Cooling Equipment (more than one

may apply)

 Residential-Type Central

 Air Conditioners ............................... 816 118 43 37 28 15.0

 Heat Pumps ..................................... 454 80 25 28 20 17.2

 Individual Air Conditioners ............... 1,023 188 70 54 57 10.3

 District Chilled Water ....................... 28 8532 28.4

 Central Chillers ................................ 142 52 37 25 16 13.5

 Packaged Air-Conditioning

 Units ................................................. 1,459 345 127 112 84 8.4

 Swamp Coolers ............................... 179 38 5 15 15 30.7

 Other ................................................ 8 QQQQ 84.1

Personal Computers and/or

Computer Terminals

 1 to 4 ................................................ 1,269 179 53 75 61 10.7

 5 to 9 ................................................ 336 44 31 24 16 14.3

 10 to 19 ............................................ 216 34 29 21 13 14.6

 20 to 49 ............................................ 164 41 42 20 12 16.6

 50 to 99 ............................................ 59 21 24 12 4 15.1

 100 to 249 ........................................ 34 11 19 8 3 14.9

 250 or More ..................................... 19 11 13 4 3 18.7

Energy Conservation Features

(more than one may apply)

 Any Conservation Features ............. 4,357 728 223 235 197 6.4

 Building Shell ................................... 4,223 709 221 229 193 6.4

 HVAC ............................................... 2,604 545 200 177 139 6.8

 Lighting ............................................ 1,178 275 105 96 73 8.8

 Other ................................................ 264 52 20 26 20 17.0

Energy Management Practices

(more than one may apply)

 Energy Management

 and Control System ......................... 236 78 49 30 22 12.4

 Demand-Side Management

 Participation ..................................... 315 95 41 31 22 12.7

 Energy Audit .................................... 521 131 55 35 32 11.0

 Building Energy Manager ................ 49 12 7 4 6 24.7

See footnotes at end of table.

130 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A26. Energy-Related Space Functions, Number of Buildings, 1992 (Continued)

 (Thousand)

Building

Characteristics

 RSE Column Factor:

All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.5 0.9 1.2 1.3 1.4

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program .................... 36 8 4 6 Q 31.7

 HVAC Program ................................ 154 48 22 21 13 15.8

 Lighting Program ............................. 228 67 34 22 14 16.1

 Other DSM Programs ...................... 110 41 18 19 12 18.9

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

Energy Information Administration/Commercial Buildings Characteristrics 1992 131
Table A27. Energy-Related Space Functions, Number of Buildings, 1992

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.6 0.9 1.1 1.2 1.4

All Buildings ..................................... 67,876 22,166 14,199 8,042 6,862 6.2

Building Floorspace (square feet)

 1,001 to 5,000 .................................. 7,327 911 118 241 194 12.3

 5,001 to 10,000 ................................ 7,199 994 231 394 223 13.6

 10,001 to 25,000 .............................. 10,375 1,848 756 742 796 11.2

 25,001 to 50,000 .............................. 10,069 2,627 1,534 851 1,002 12.8

 50,001 to 100,000 ............................ 8,062 3,110 2,127 1,095 815 11.8

 100,001 to 200,000 .......................... 9,678 4,062 3,217 1,628 1,245 13.4

 200,001 to 500,000 .......................... 7,889 4,639 3,096 1,839 1,706 15.1

 Over 500,000 ................................... 7,278 3,975 3,119 1,250 880 18.0

Principal Building Activity

 Education ......................................... 8,470 5,676 2,202 2,176 1,380 11.8

 Food Sales ....................................... 757 350 Q Q Q 24.7

 Food Service ................................... 1,491 1,453 Q Q 176 15.0

 Health Care ...................................... 1,763 1,294 953 1,006 540 15.8

 Lodging ............................................ 2,891 1,596 548 Q 1,755 21.9

 Mercantile and Service .................... 12,402 3,806 1,092 778 1,117 16.2

 Office ............................................... 12,319 3,674 5,569 1,496 792 11.9

 Parking Garage ................................ 1,652 QQQQ 45.2

 Public Assembly .............................. 4,556 1,769 442 433 544 24.4

 Public Order and Safety ................... 820 QQQQ 39.5

 Religious Worship ............................ 3,747 1,231 Q Q Q 22.0

 Warehouse and Storage .................. 11,484 346 2,079 563 Q 20.2

 Other ................................................ 1,130 Q 396 632 185 22.6

 Vacant .............................................. 4,396 507 550 Q Q 34.8

Year Constructed

 1899 or Before ................................. 1,721 495 Q Q Q 21.1

 1900 to 1919 .................................... 3,608 1,334 673 Q Q 27.6

 1920 to 1945 .................................... 8,712 2,225 1,439 1,030 803 18.7

 1946 to 1959 .................................... 10,421 2,849 1,436 1,051 908 11.6

 1960 to 1969 .................................... 12,612 4,924 3,057 1,840 1,244 13.6

 1970 to 1979 .................................... 14,014 5,067 2,857 1,951 1,856 10.8

 1980 to 1989 .................................... 14,287 4,414 3,748 1,362 1,365 12.4

 1990 to 1992 .................................... 2,502 859 811 437 454 18.9

Census Region

 Northeast ......................................... 13,400 5,740 3,736 1,998 1,714 13.2

 Midwest ............................................ 17,280 5,804 3,265 2,499 1,867 10.2

 South ............................................... 24,577 6,870 3,966 2,163 2,317 10.5

 West ................................................. 12,619 3,753 3,233 1,381 964 12.4

Energy Sources (more than one

may apply)

 Electricity ......................................... 66,549 22,166 14,199 8,036 6,862 6.2

 Natural Gas ...................................... 45,097 18,488 10,618 6,332 5,725 6.8

 Fuel Oil ............................................ 13,218 7,452 5,745 2,995 2,445 9.5

 District Heat ..................................... 5,339 2,280 2,124 1,627 818 15.3

 District Chilled Water ....................... 2,066 920 839 500 416 23.0

 Propane ........................................... 3,393 1,545 925 542 561 19.6

 Any Other ......................................... 1,551 394 Q Q Q 30.7

See footnotes at end of table.

132 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A27. Energy-Related Space Functions, Number of Buildings, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.6 0.9 1.1 1.2 1.4

Energy End Uses (more than one

may apply)

 Heated Buildings .............................. 61,996 21,833 14,170 7,995 6,829 6.3

 Air-Conditioned Buildings ................ 57,041 21,096 14,199 7,744 6,546 6.5

 Buildings with Water Heating ........... 58,479 22,095 13,947 7,890 6,857 6.4

 Buildings with Cooking ..................... 23,065 22,159 7,328 4,178 4,813 8.2

 Buildings with Manufacturing ........... 3,174 525 810 864 421 21.1

Predominant Exterior Wall

Materials

 Masonry ........................................... 48,585 17,270 9,222 5,898 5,571 6.7

 Siding or Shingles ............................ 3,873 919 297 100 185 17.9

 Metal Panels .................................... 7,392 677 958 723 Q 22.1

 Concrete Panels .............................. 4,961 1,998 1,713 682 694 20.4

 Window Glass .................................. 2,028 993 1,309 478 231 25.5

 Other ................................................ 1,037 309 701 Q Q 32.8

Predominant Roof Materials

 Built-Up ............................................ 30,257 10,364 7,468 3,567 3,043 8.3

 Shingles (Not Wood) ........................ 10,570 2,931 905 761 814 16.9

 Metal Surfacing ................................ 9,019 1,157 772 651 311 18.7

 Synthetic or Rubber ......................... 11,702 6,039 3,852 2,250 2,250 11.7

 Slate or Tile ...................................... 1,998 671 180 374 295 27.3

 Concrete .......................................... 2,544 570 488 Q Q 37.7

 Other ................................................ 1,786 435 535 Q Q 20.2

Floors

 One .................................................. 25,424 5,058 2,680 1,509 1,279 11.2

 Two .................................................. 18,025 5,512 2,934 1,633 1,773 10.5

 Three ............................................... 9,877 4,208 2,245 1,701 1,493 11.5

 Four to Nine ..................................... 10,377 4,716 3,700 2,317 1,485 12.6

 Ten or More ..................................... 4,173 2,672 2,640 881 832 18.4

Workers (main shift)

 Less than 5 ...................................... 17,944 1,783 409 553 537 16.1

 5 to 9 ................................................ 7,524 1,322 391 348 318 14.6

 10 to 19 ............................................ 8,077 1,719 538 615 708 15.7

 20 to 49 ............................................ 10,556 3,419 1,898 1,274 1,201 11.9

 50 to 99 ............................................ 7,763 3,424 2,504 1,467 1,369 13.7

 100 to 249 ........................................ 7,378 3,998 2,795 1,647 1,349 16.2

 250 or More ..................................... 8,633 6,502 5,666 2,139 1,380 12.1

Weekly Operating Hours

 39 or Fewer ...................................... 8,246 1,828 435 322 Q 18.4

 40 to 48 ............................................ 14,998 3,014 2,954 1,748 717 12.4

 49 to 60 ............................................ 14,046 3,118 3,207 1,401 750 12.0

 61 to 84 ............................................ 12,062 5,188 3,200 1,481 1,163 13.4

 85 to 167 .......................................... 8,467 4,754 1,618 1,191 1,429 14.9

 Open Continuously .......................... 10,057 4,264 2,786 1,899 2,528 12.7

Ownership and Occupancy

 Nongovernment Owned ................... 52,752 14,098 10,353 4,764 5,055 7.1

 Owner Occupied ............................ 38,403 10,890 7,652 3,845 4,101 7.1

 Nonowner Occupied ...................... 12,273 3,119 2,599 866 931 15.2

 Unoccupied .................................... 2,077 QQQQ 20.2

 Government Owned ......................... 15,124 8,068 3,847 3,277 1,807 10.9

Multibuilding Facility

 Part of Multibuilding Facility ............. 31,564 10,614 7,663 4,636 3,141 9.5

 with Central Physical Plant ............ 8,395 3,526 2,478 2,281 1,413 15.0

 No Central Physical Plant .............. 23,170 7,088 5,185 2,355 1,728 11.4

 Not on Multibuilding Facility ............. 36,312 11,553 6,537 3,405 3,721 6.9

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 133
Table A27. Energy-Related Space Functions, Number of Buildings, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.6 0.9 1.1 1.2 1.4

Percent of Floorspace Heated

 Not Heated ....................................... 6,211 QQQQ 18.7

 1 to 50 .............................................. 11,195 2,040 1,621 816 332 20.3

 51 to 99 ............................................ 10,211 4,284 2,934 1,539 1,556 11.6

 100 ................................................... 40,260 15,428 9,614 5,640 4,937 6.9

Percent of Floorspace Cooled

 Not Cooled ....................................... 10,835 1,070 Q 297 316 18.1

 1 to 50 .............................................. 21,715 5,468 4,313 2,570 1,371 10.8

 51 to 99 ............................................ 13,872 7,211 4,650 2,271 2,472 11.1

 100 ................................................... 21,454 8,417 5,236 2,904 2,704 9.2

Heating Equipment (more than one

may apply)

 Heat Pumps ..................................... 8,269 2,871 2,290 1,054 1,470 15.2

 Furnaces .......................................... 16,909 4,459 2,291 1,261 1,300 11.2

 Individual Space Heaters ................. 22,380 7,233 5,158 2,902 2,580 9.0

 District Heat ..................................... 5,225 2,198 2,070 1,592 783 15.6

 Boilers .............................................. 20,664 10,439 6,599 3,915 3,490 9.6

 Packaged Heating Units .................. 16,000 6,349 4,384 1,773 2,137 11.3

 Other ................................................ 903 513 418 Q Q 28.7

Cooling Equipment (more than one

may apply)

 Residential-Type Central

 Air Conditioners ............................... 9,021 2,553 1,762 975 911 14.4

 Heat Pumps ..................................... 8,406 2,991 2,355 1,101 1,392 13.9

 Individual Air Conditioners ............... 17,979 6,750 4,361 2,339 2,338 11.5

 District Chilled Water ....................... 2,066 920 839 500 416 23.0

 Central Chillers ................................ 12,991 7,823 5,942 3,247 2,261 10.8

 Packaged Air-Conditioning

 Units ................................................. 27,830 10,896 8,419 4,013 3,496 8.0

 Swamp Coolers ............................... 2,085 755 482 343 213 29.5

 Other ................................................ 268 QQQQ 63.6

Personal Computers and/or

Computer Terminals

 1 to 4 ................................................ 13,355 2,810 931 822 1,358 12.6

 5 to 9 ................................................ 5,970 1,802 1,071 591 726 15.5

 10 to 19 ............................................ 6,236 2,026 1,212 774 460 17.6

 20 to 49 ............................................ 7,439 2,875 2,312 1,183 847 14.5

 50 to 99 ............................................ 4,908 2,800 2,053 1,110 828 16.1

 100 to 249 ........................................ 4,220 2,353 2,408 1,441 744 16.5

 250 or More ..................................... 5,569 4,239 4,052 1,554 1,089 15.8

Energy Conservation Features

(more than one may apply)

 Any Conservation Features ............. 64,403 22,132 14,199 8,006 6,824 6.3

 Building Shell ................................... 62,056 21,922 14,056 7,862 6,721 6.3

 HVAC ............................................... 50,281 20,551 13,133 7,303 6,314 6.6

 Lighting ............................................ 29,453 12,988 8,990 4,912 3,579 8.5

 Other ................................................ 5,952 2,615 1,708 1,116 985 15.0

Energy Management Practices

(more than one may apply)

 Energy Management

 and Control System ......................... 14,320 8,356 6,313 3,351 2,517 10.8

 Demand-Side Management

 Participation ..................................... 11,310 6,788 4,078 2,448 2,048 10.7

 Energy Audit .................................... 14,779 7,392 5,238 2,747 2,169 10.0

 Building Energy Manager ................ 2,311 1,108 849 538 588 21.3

See footnotes at end of table.

134 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A27. Energy-Related Space Functions, Number of Buildings, 1992 (Continued)

 (Million Square Feet)

Building

Characteristics

 RSE Column Factor:

Total

Floorspace

of All

Buildings

Space Functions

(more than one may apply)

RSE

Row

Factor

Commercial

Food

Preparation

Computer

Room

Rooms

with

Special

Ventilation

Activity with

Large Amount

of Hot Water

0.6 0.9 1.1 1.2 1.4

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program .................... 1,079 622 480 197 Q 25.0

 HVAC Program ................................ 6,370 3,964 2,540 1,612 1,303 12.8

 Lighting Program ............................. 8,805 5,394 3,325 1,897 1,533 12.5

 Other DSM Programs ...................... 6,176 4,240 2,660 1,469 1,431 14.5

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for explanation of

abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings Energy

Consumption Survey.

Energy Information Administration/Commercial Buildings Characteristrics 1992 135
Table A28. Additional Operating Hours for Equipment Use, Number of Buildings 

 and Floorspace, 1992

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Type of Equipment

All

Buildings

Type of Equipment

Heating

and/or

Cooling Lighting

Heating

and/or

Cooling Lighting

0.7 1.2 1.4 0.7 1.0 1.3

All Buildings ..................................... 4,806 1,223 633 67,876 20,300 12,886 5.5

Building Floorspace (square feet)

 1,001 to 5,000 .................................. 2,681 626 307 7,327 1,778 860 8.8

 5,001 to 10,000 ................................ 975 256 145 7,199 1,905 1,096 7.4

 10,001 to 25,000 .............................. 647 171 83 10,375 2,904 1,374 8.0

 25,001 to 50,000 .............................. 280 90 45 10,069 3,211 1,663 9.8

 50,001 to 100,000 ............................ 116 44 30 8,062 2,970 2,022 10.3

 100,001 to 200,000 .......................... 71 26 14 9,678 3,378 1,970 11.4

 200,001 to 500,000 .......................... 26 8 6 7,889 2,487 1,912 14.1

 Over 500,000 ................................... 9 2 2 7,278 1,667 1,990 24.4

Principal Building Activity

 Education ......................................... 301 82 35 8,470 3,246 2,073 10.3

 Food Sales ....................................... 130 48 30 757 217 152 21.3

 Food Service ................................... 260 74 43 1,491 462 237 15.5

 Health Care ...................................... 63 24 Q 1,763 258 Q 18.8

 Lodging ............................................ 154 Q Q 2,891 Q Q 17.2

 Mercantile and Service .................... 1,272 357 217 12,402 4,530 3,097 10.3

 Office ............................................... 749 269 119 12,319 5,119 3,530 8.8

 Parking Garage ................................ 24 Q Q 1,652 Q 188 33.5

 Public Assembly .............................. 278 85 33 4,556 1,183 511 14.3

 Public Order and Safety ................... 60 Q Q 820 Q Q 30.3

 Religious Worship ............................ 366 101 22 3,747 1,177 458 14.3

 Warehouse and Storage .................. 761 116 75 11,484 2,604 1,435 11.0

 Other ................................................ 69 16 9 1,130 405 288 24.4

 Vacant .............................................. 319 26 29 4,396 843 680 21.0

Year Constructed

 1899 or Before ................................. 169 52 35 1,721 684 286 19.8

 1900 to 1919 .................................... 255 81 48 3,608 1,400 1,026 18.6

 1920 to 1945 .................................... 724 189 112 8,712 2,376 1,359 11.8

 1946 to 1959 .................................... 880 223 99 10,421 3,102 1,626 9.8

 1960 to 1969 .................................... 783 182 96 12,612 3,753 2,567 9.9

 1970 to 1979 .................................... 982 241 129 14,014 3,924 2,827 9.0

 1980 to 1989 .................................... 884 213 103 14,287 4,315 2,662 10.3

 1990 to 1992 .................................... 128 41 12 2,502 747 535 20.9

Census Region

 Northeast ......................................... 771 248 99 13,400 4,360 2,417 12.3

 Midwest ............................................ 1,202 351 152 17,280 5,688 3,181 9.4

 South ............................................... 1,963 431 264 24,577 6,468 4,704 9.8

 West ................................................. 870 192 119 12,619 3,785 2,584 11.1

Energy Sources (more than one

may apply)

 Electricity ......................................... 4,616 1,223 633 66,549 20,300 12,886 5.5

 Natural Gas ...................................... 2,665 791 413 45,097 15,139 9,756 6.3

 Fuel Oil ............................................ 559 176 84 13,218 4,279 3,197 12.0

 District Heat ..................................... 95 37 12 5,339 1,664 1,200 16.1

 District Chilled Water ....................... 28 9 3 2,066 603 298 25.1

 Propane ........................................... 337 71 33 3,393 782 584 16.8

 Any Other ......................................... 163 52 26 1,551 632 275 25.2

See footnotes at end of table.

136 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A28. Additional Operating Hours for Equipment Use, Number of Buildings 

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Type of Equipment

All

Buildings

Type of Equipment

Heating

and/or

Cooling Lighting

Heating

and/or

Cooling Lighting

0.7 1.2 1.4 0.7 1.0 1.3

Energy End Uses (more than one

may apply)

 Heated Buildings .............................. 4,178 1,211 602 61,996 19,914 12,377 5.7

 Air-Conditioned Buildings ................ 3,502 1,034 525 57,041 18,624 12,026 5.9

 Buildings with Water Heating ........... 3,502 1,080 543 58,479 19,464 12,198 5.7

 Buildings with Cooking ..................... 734 231 121 23,065 7,483 5,749 8.5

 Buildings with Manufacturing ........... 121 34 19 3,174 866 583 18.7

Workers (main shift)

 Less than 5 ...................................... 2,718 554 313 17,944 3,200 1,933 9.1

 5 to 9 ................................................ 895 277 120 7,524 2,201 1,059 9.4

 10 to 19 ............................................ 561 166 75 8,077 2,332 1,085 11.4

 20 to 49 ............................................ 405 139 69 10,556 3,587 1,914 8.1

 50 to 99 ............................................ 130 50 29 7,763 3,234 1,784 11.4

 100 to 249 ........................................ 64 26 20 7,378 2,750 2,181 12.6

 250 or More ..................................... 31 11 8 8,633 2,996 2,931 13.9

Weekly Operating Hours

 39 or Fewer ...................................... 1,039 177 86 8,246 1,930 1,156 12.0

 40 to 48 ............................................ 1,278 399 181 14,998 5,989 2,876 8.4

 49 to 60 ............................................ 1,004 297 155 14,046 5,667 3,407 7.9

 61 to 84 ............................................ 645 188 102 12,062 4,349 3,471 9.7

 85 to 167 .......................................... 478 161 109 8,467 2,366 1,976 11.6

 Open Continuously .......................... 362 Q Q 10,057 Q Q 14.5

Heating Equipment (more than one

may apply)

 Heat Pumps ..................................... 449 139 71 8,269 2,828 1,616 14.2

 Furnaces .......................................... 1,692 551 253 16,909 5,881 3,254 8.6

 Individual Space Heaters ................. 1,464 407 174 22,380 7,133 4,246 7.9

 District Heat ..................................... 93 36 12 5,225 1,629 1,186 16.2

 Boilers .............................................. 624 231 114 20,664 7,793 4,826 7.6

 Packaged Heating Units .................. 870 224 129 16,000 4,379 3,121 9.6

 Other ................................................ 42 11 Q 903 287 Q 31.4

Heating Distribution Equipment

(more than one may apply)

 Radiators or Baseboards ................. 473 183 79 13,263 4,906 2,485 9.2

 Ducts for Heating ............................. 2,955 906 451 45,422 15,148 9,544 6.0

 Heating Only ............................... 577 180 80 5,950 2,063 996 13.1

 Heating and Cooling ................... 2,378 726 372 39,472 13,085 8,548 6.3

 Variable Air-Volume

 System ........................................ 210 69 33 11,528 3,820 2,736 11.3

 Fan Coil Units for Heating ................ 99 40 16 5,474 1,750 990 14.7

 Heating Only ............................... 78 30 12 3,569 1,218 673 17.1

 Heating and Cooling ................... 21 10 3 1,906 532 317 23.3

 Individual Space Heaters ................. 1,464 407 174 22,380 7,133 4,246 7.9

 Other ................................................ 181 61 32 3,310 1,395 986 18.0

Cooling Equipment (more than one

may apply)

 Residential-Type Central

 Air Conditioners ............................... 816 250 126 9,021 3,081 2,020 11.1

 Heat Pumps ..................................... 454 144 79 8,406 2,865 1,751 13.5

 Individual Air Conditioners ............... 1,023 305 140 17,979 5,772 3,434 10.0

 District Chilled Water ....................... 28 9 3 2,066 603 298 25.1

 Central Chillers ................................ 142 57 37 12,991 4,149 3,550 11.7

 Packaged Air-Conditioning

 Units ................................................. 1,459 419 222 27,830 9,179 6,096 7.0

 Swamp Coolers ............................... 179 48 32 2,085 748 281 23.6

 Other ................................................ 8 Q Q 268 Q Q 59.7

See footnotes at end of table.

Energy Information Administration/Commercial Buildings Characteristrics 1992 137
Table A28. Additional Operating Hours for Equipment Use, Number of Buildings 

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Type of Equipment

All

Buildings

Type of Equipment

Heating

and/or

Cooling Lighting

Heating

and/or

Cooling Lighting

0.7 1.2 1.4 0.7 1.0 1.3

Cooling Distribution Equipment

(more than one may apply)

 Ducts for Cooling ............................. 2,733 816 431 47,755 15,626 10,209 6.0

 Cooling Only ............................... 355 90 60 8,283 2,541 1,661 11.7

 Heating and Cooling ................... 2,378 726 372 39,472 13,085 8,548 6.3

 Variable Air-volume

 System ........................................ 221 67 39 12,430 3,784 2,943 10.7

 Fan Coil Units for Cooling ................ 56 22 10 3,875 1,412 992 22.0

 Cooling Only ............................... 35 12 7 1,969 880 675 32.3

 Heating and Cooling ................... 21 10 3 1,906 532 317 23.3

 Individual Air Conditioners ............... 1,023 305 140 17,979 5,772 3,434 10.0

 Other ................................................ 111 33 20 2,919 1,004 681 22.8

Lighting Equipment Types (more

than one may apply)

 Incandescent ................................... 2,509 754 377 39,221 13,294 8,116 6.4

 Standard Fluorescent ...................... 4,065 1,155 601 62,074 19,932 12,574 5.5

 Compact Fluorescent ....................... 206 75 49 8,336 2,733 2,146 12.0

 High-Intensity Discharge .................. 354 115 72 17,570 5,420 3,650 8.9

 Other ................................................ 78 20 11 1,612 471 281 23.4

Building Shell Conservation

Features (more than one may

apply)

 Roof or Ceiling Insulation ................. 3,343 987 459 50,311 16,818 10,152 6.2

 Wall Insulation ................................. 2,320 695 320 33,240 11,362 6,874 7.3

 Storm or Multiple Glazing ................ 1,680 621 235 29,684 10,372 5,630 7.6

 Tinted, Reflective or Shading

 Glass ................................................ 1,068 300 173 25,396 8,027 5,645 8.5

 Exterior or Interior Shading

 or Awnings ....................................... 1,853 599 293 34,071 11,573 7,212 7.0

 Windows that Open ......................... 2,119 577 244 28,937 8,091 4,538 7.1

HVAC Conservation Features

(more than one may apply)

 Variable Air-Volume System ............ 250 77 43 13,970 4,460 3,302 10.4

 Economizer Cycle ............................ 414 130 93 18,313 5,987 4,581 10.8

 HVAC Maintenance ......................... 2,503 778 356 49,173 16,520 10,587 6.2

Lighting Conservation Features

(more than one may apply)

 Specular Reflectors ......................... 574 173 96 15,241 4,852 3,320 10.0

 Natural Lighting Control

 Sensors ............................................ 74 16 20 3,072 692 746 16.6

 Occupancy Sensors ......................... 59 20 14 3,629 1,304 819 16.3

 Time Clock ....................................... 339 91 89 12,104 3,633 3,343 12.5

 Manual Dimmer Switches ................ 413 146 73 12,329 3,897 2,808 9.8

 Other ................................................ 78 29 14 2,596 961 583 17.2

Energy Conservation Features

(more than one may apply)

 Any Conservation Features ............. 4,357 1,203 594 64,403 20,168 12,550 5.8

 Building Shell ................................... 4,223 1,176 579 62,056 19,610 12,295 5.9

 HVAC ............................................... 2,604 809 380 50,281 17,027 10,779 6.3

 Lighting ............................................ 1,178 369 223 29,453 9,492 6,747 7.1

 Other ................................................ 264 101 46 5,952 2,136 1,312 12.5

See footnotes at end of table.

138 Energy Information Administration/Commercial Buildings Characteristrics 1992
Table A28. Additional Operating Hours for Equipment Use, Number of Buildings 

 and Floorspace, 1992 (Continued)

Building

Characteristics

 RSE Column Factor:

Number of Buildings

(thousand)

Total Floorspace

(million square feet)

RSE

Row

Factor

All

Buildings

Type of Equipment

All

Buildings

Type of Equipment

Heating

and/or

Cooling Lighting

Heating

and/or

Cooling Lighting

0.7 1.2 1.4 0.7 1.0 1.3

Energy Management Practices

(more than one may apply)

 Energy Management

 and Control System ......................... 236 80 38 14,320 4,970 3,820 10.4

 Demand-Side Management

 Participation ..................................... 315 124 63 11,310 3,956 2,834 9.6

 Energy Audit .................................... 521 188 82 14,779 5,473 3,792 9.3

 Building Energy Manager ................ 49 12 9 2,311 545 485 21.3

Demand-Side Management

Programs (more than one may

apply)

 Building Shell Program .................... 36 13 4 1,079 372 251 24.0

 HVAC Program ................................ 154 63 34 6,370 2,235 1,540 12.2

 Lighting Program ............................. 228 87 45 8,805 2,900 2,082 11.6

 Other DSM Programs ...................... 110 39 29 6,176 1,911 1,612 13.9

Q = Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or fewer than 20 buildings were sampled.

Notes: • To obtain a RSE percentage for any table cell, multiply the cell’s corresponding RSE column and RSE row factors. • See Glossary for

explanation of abbreviations and definitions of terms used in this report.

Source: Energy Information Administration, Office of Energy Marketsand End Use, Form EIA-871A, "Building Questionnaire," 1992 Commercial Buildings

Energy Consumption Survey.

Energy Information Administration/Commercial Buildings Characteristrics 1992 139