ResidentialType

 Central Air 

Conditioners

Heat 

Pumps

Individual 

Air 

Conditioners

District 

Chilled 

Water

Central 

Chillers

Packaged

 Air 

Conditioning 

Units

Swamp 

Coolers Other

All Buildings ............................................. 4,657 3,560 676 485 799 50 130 1,953 136 49

Building Floorspace

(Square Feet)

1,001 to 5,000 ............................................ 2,348 1,680 319 240 356 Q Q 857 79 Q

5,001 to 10,000 .......................................... 1,110 828 211 95 184 Q Q 423 25 Q

10,001 to 25,000 ........................................ 708 611 96 80 149 Q 17 387 13 Q

25,001 to 50,000 ........................................ 257 223 24 35 60 7 25 141 9 4

50,001 to 100,000 ...................................... 145 134 17 22 29 7 28 89 7 Q

100,001 to 200,000 .................................... 59 55 7 9 13 5 16 37 2 Q

200,001 to 500,000 .................................... 23 21 2 4 7 2 9 14 Q Q

Over 500,000 ............................................. 7 7 1 1 1 1 4 4 Q Q

Principal Building Activity

Education ................................................... 327 274 23 39 79 Q 31 164 Q Q

Food Sales ................................................. 174 166 Q Q Q N Q 99 Q Q

Food Service .............................................. 349 324 66 Q 71 Q Q 218 Q Q

Health Care ................................................ 127 127 Q 29 15 2 9 77 Q Q

 Inpatient ................................................... 11 11 1 1 Q 2 6 4 Q Q

 Outpatient ................................................ 116 116 Q Q Q Q 4 73 Q Q

Lodging ...................................................... 153 126 17 26 64 Q 10 47 Q Q

Mercantile .................................................. 667 632 87 54 164 Q 4 370 26 Q

 Retail (Other Than Mall) .......................... 534 499 77 30 154 Q Q 264 Q Q

 Enclosed and Strip Malls ......................... 133 132 Q 24 Q Q 2 107 Q Q

Office ......................................................... 739 716 137 141 90 6 31 385 5 14

Public Assembly ........................................ 305 232 61 30 39 Q 16 126 Q Q

Public Order and Safety ............................. 72 32 Q Q 11 Q 6 14 Q Q

Religious Worship ...................................... 307 232 50 19 69 Q Q 123 Q Q

Service ....................................................... 478 289 70 33 70 Q Q 139 Q Q

Warehouse and Storage ............................ 603 308 82 42 85 Q Q 140 Q Q

Other .......................................................... 102 76 Q Q Q Q Q 28 Q Q

Vacant ........................................................ 253 27 Q Q Q N Q Q Q Q

Year Constructed

1919 or Before ........................................... 419 260 78 Q 101 Q Q 92 Q Q

1920 to 1945 .............................................. 499 313 75 24 124 2 8 143 Q Q

1946 to 1959 .............................................. 763 589 129 89 178 5 13 275 29 Q

1960 to 1969 .............................................. 665 496 39 39 102 7 32 332 25 Q

1970 to 1979 .............................................. 774 649 105 106 112 Q 17 398 33 Q

1980 to 1989 .............................................. 846 702 143 121 96 Q 22 421 19 Q

1990 to 1999 .............................................. 690 549 107 91 86 4 29 291 6 Q

Census Region

Northeast ................................................... 686 473 72 19 172 2 17 265 Q Q

Midwest ...................................................... 1,188 861 285 27 214 14 25 403 Q Q

South ......................................................... 1,762 1,506 258 329 312 Q 57 841 Q Q

West .......................................................... 1,021 720 62 110 100 13 31 443 109 Q

Climate Zone: 45-Year Average

Under 2,000 CDD and --

 More than 7,000 HDD .............................. 525 366 82 4 137 Q 10 170 Q Q

 5,500-7,000 HDD ..................................... 986 711 175 18 177 6 22 391 Q Q

 4,000-5,499 HDD ..................................... 1,085 766 178 173 207 Q 38 306 Q Q

 Fewer than 4,000 HDD ............................ 1,134 913 97 174 141 7 27 596 50 Q

2,000 CDD or More and --

 Fewer than 4,000 HDD ............................ 926 803 144 116 137 23 32 490 Q Q

Table B34. Cooling Equipment, Number of Buildings, 1999

Cooling Equipment (more than one may apply)

Number of Buildings (thousand)

All

Buildings

All Cooled 

Buildings

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 108
ResidentialType

 Central Air 

Conditioners

Heat 

Pumps

Individual 

Air 

Conditioners

District 

Chilled 

Water

Central 

Chillers

Packaged

 Air 

Conditioning 

Units

Swamp 

Coolers Other

Table B34. Cooling Equipment, Number of Buildings, 1999

Cooling Equipment (more than one may apply)

Number of Buildings (thousand)

All

Buildings

All Cooled 

Buildings

Workers (main shift)

Fewer than 5 .............................................. 2,376 1,513 339 169 350 Q 28 724 69 Q

5 to 9 .......................................................... 807 681 133 68 163 Q 9 354 26 Q

10 to 19 ...................................................... 683 636 101 122 146 Q 11 383 Q Q

20 to 49 ...................................................... 487 433 69 79 61 3 22 295 13 7

50 to 99 ...................................................... 174 169 18 29 44 10 18 118 5 Q

100 to 249 .................................................. 90 88 14 10 27 4 21 54 4 3

250 or More ................................................ 39 39 3 8 7 5 20 24 1 1

Weekly Operating Hours

39 or Fewer ................................................ 978 439 112 42 109 Q 4 229 Q Q

40 to 48 ...................................................... 1,156 968 205 180 214 Q 27 482 22 6

49 to 60 ...................................................... 986 850 114 113 185 13 42 458 25 Q

61 to 84 ...................................................... 664 563 137 49 125 6 18 317 42 Q

85 to 167 .................................................... 474 436 72 67 78 4 9 292 15 Q

Open Continuously .................................... 398 304 36 34 88 11 30 174 8 4

Multibuilding Facility Activity

Not Part of a Multibuilding

 Facility ....................................................... 3,295 2,567 510 310 574 3 60 1,435 95 24

College or University .................................. 70 46 Q Q 9 13 9 12 Q Q

Primary or Secondary School .................... 224 171 4 23 50 Q 17 123 Q Q

Office Complex .......................................... 134 115 Q 33 8 Q Q 43 Q Q

Retail Complex .......................................... 181 163 Q 27 34 Q Q 117 Q Q

Religious Campus or Complex .................. 186 146 Q Q 38 Q Q 91 Q Q

Health Care Complex ................................ 72 61 Q 21 5 3 6 35 Q Q

Government Complex ................................ 61 46 Q Q Q Q 6 6 Q Q

Other .......................................................... 434 244 85 31 65 Q 10 91 Q Q

Energy Sources (more than

one may apply)

Electricity .................................................... 4,395 3,560 676 485 799 50 130 1,953 136 49

Natural Gas ................................................ 2,670 2,335 503 195 507 21 103 1,356 121 20

Fuel Oil ...................................................... 434 302 37 49 163 3 29 102 4 3

District Heat ............................................... 117 97 4 Q 21 43 16 43 Q Q

District Chilled Water ................................. 50 50 Q 4 Q 50 1 Q Q Q

Propane ..................................................... 451 318 64 34 107 Q 6 165 12 Q

Other .......................................................... 153 107 45 Q 31 Q 3 51 Q Q

Cooling Energy Sources

(more than one may apply)

Electricity .................................................... 3,450 3,450 676 485 799 24 127 1,870 135 48

Natural Gas ................................................ 142 142 Q 17 18 Q 2 111 Q Q

District Chilled Water ................................. 50 50 Q 4 Q 50 1 Q Q Q

Energy End Uses (more than

one may apply)

Buildings with Space Heating .................... 4,016 3,400 645 481 771 49 126 1,859 126 48

Buildings with Cooling ................................ 3,560 3,560 676 485 799 50 130 1,953 136 49

Buildings with Water Heating ..................... 3,239 2,915 532 401 650 37 124 1,646 120 34

Buildings with Cooking ............................... 857 792 114 97 216 6 49 519 44 5

Buildings with Manufacturing ..................... 151 129 28 Q 54 Q 3 57 Q Q

Buildings with Electricity

 Generation ................................................ 172 149 26 30 30 5 42 88 4 4

Percent of Floorspace Cooled

Not Cooled ................................................. 1,097 N N N N N N N N N

1 to 50 ........................................................ 1,012 1,012 241 84 414 Q Q 390 39 Q

51 to 99 ...................................................... 751 751 156 92 161 8 45 445 32 19

100 ............................................................. 1,796 1,796 280 310 224 40 66 1,118 65 Q

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 109
ResidentialType

 Central Air 

Conditioners

Heat 

Pumps

Individual 

Air 

Conditioners

District 

Chilled 

Water

Central 

Chillers

Packaged

 Air 

Conditioning 

Units

Swamp 

Coolers Other

Table B34. Cooling Equipment, Number of Buildings, 1999

Cooling Equipment (more than one may apply)

Number of Buildings (thousand)

All

Buildings

All Cooled 

Buildings

Heating Equipment (more

than one may apply)

Heat Pumps ............................................... 492 478 46 447 84 3 12 130 9 Q

Furnaces .................................................... 1,460 1,193 508 76 262 Q 12 470 72 12

Individual Space Heaters ........................... 894 670 104 89 294 9 26 327 47 4

District Heat ............................................... 96 77 3 4 16 39 15 35 Q Q

Boilers ........................................................ 581 474 58 39 211 3 96 223 18 14

Packaged Heating Units ............................ 1,347 1,304 75 84 167 Q 26 1,219 48 4

Other .......................................................... 185 143 38 22 47 1 8 49 Q Q

Cooling Equipment (more

than one may apply)

Residential-Type Central

 Air Conditioners ........................................ 676 676 676 45 91 Q 8 85 Q Q

Heat Pumps ............................................... 485 485 45 485 94 4 14 112 6 Q

Individual Air Conditioners ......................... 799 799 91 94 799 Q 18 186 13 Q

District Chilled Water ................................. 50 50 Q 4 Q 50 1 Q Q Q

Central Chillers .......................................... 130 130 8 14 18 1 130 39 2 Q

Packaged Air Conditioning

 Units .......................................................... 1,953 1,953 85 112 186 Q 39 1,953 56 12

Swamp Coolers ......................................... 136 136 Q 6 13 Q 2 56 136 Q

Other .......................................................... 49 49 Q Q Q Q Q 12 Q 49

Main Equipment Replaced Since

1995 (more than one may apply)

Heating ...................................................... 984 862 182 127 205 Q 17 490 39 Q

Cooling ....................................................... 1,085 1,085 208 173 308 Q 27 575 58 Q

Building Shell Conservation

Features (more than one

may apply)

Multipaned Windows .................................. 2,130 1,835 386 291 425 24 86 931 38 35

Tinted, Reflective, or

 Shading Glass .......................................... 1,283 1,180 208 169 158 26 74 770 61 11

HVAC Conservation Features

(more than one may apply)

Variable Air-Volume System ...................... 550 535 111 57 49 19 70 352 9 8

Economizer Cycle ...................................... 567 567 49 52 51 21 63 444 33 15

HVAC Maintenance ................................... 2,786 2,520 451 372 445 48 126 1,524 101 30

Energy Management and

 Control System (EMCS) ........................... 460 423 37 45 71 26 60 288 15 11

Off-Hour Equipment Reduction

(more than one may apply)

Heating ...................................................... 2,862 2,449 489 357 506 37 85 1,346 95 31

Cooling ....................................................... 2,622 2,622 512 347 562 36 88 1,469 93 33

Lighting ...................................................... 3,675 3,110 605 435 694 39 93 1,692 119 45

Office Equipment ....................................... 184 175 12 27 40 4 26 125 4 Q

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

N=No responding cases in sample.

Note: Due to rounding, data may not sum to totals.

Source: Energy Information Administration, Office of Energy Markets and End Use, Form EIA-871A of the 1999 Commercial Buildings Energy Consumption Survey.

Energy Information Administration

1999 Commercial Buildings Energy Consumption Survey: Building Characteristics Tables 110