8.1-1 APPENDIX 8.1. GLOSSARY OF VARIABLES AND THEIR VALUES FROM EIA’S RECS97

The Department created a database, using Microsoft ACCESS, which contains a subset of the records and variables from EIA’s 1997 Residential Energy Consumption Survey (RECS97). 1 The Department used this RECS subset in the life-cycle cost (LCC) analysis of the Residential Furnace and Boiler Rulemaking. This appendix explains the variable name abbreviations and provides definitions of the variable values. For the entire RECS97 dataset, refer to http://www.eia.doe.gov/emeu/recs/contents.html.

In the glossary below, the variable names are listed alphabetically. A brief explanation of the variable name as it appears in the database file follows the name. Definitions of the variable’s values are listed below the name.

In the ACCESS database file, the Department created one table and a query file for each of the six product classes. Looking at the query filter shows the algorithm used to select the records for each different product class. The variables listed appear in the LCC spreadsheets in essentially the same order as they do in the database file.8.1-2

AGECENAC AGE OF CENTRAL A/C EQUIP LESS THAN 2 YEARS OLD = 1 2 TO 4 YEARS OLD = 2 5 TO 9 YEARS OLD = 3 10 TO 19 YEARS OLD = 4 20 YEARS OR OLDER = 5 AS OLD AS THE HOME (IF VOLUNTEERED) = 6 DON’T KNOW = 96 NOT APPLICABLE = 99

BTUELCOL

ELEC AIR COND USE EST IN THOUSANDS OF BTU 9999999 = NOT APPLICABLE

BTUFOSPH

FO SPACE HEAT USE EST THOUSANDS OF BTU 9999999 = NOT APPLICABLE

BTULPSPH

LPG SPACE HEAT USE EST IN KS OF BTU 9999999 = NOT APPLICABLE

BTUNGSPHNAT GAS SPACE HEAT USE EST THOUSANDS OF BTU 9999999 = NOT APPLICABLE CDD65 COOLING DD TO BASE 65 1-97 TO 12-97 COOLING DEGREE DAYS ARE THE NUMBER OF DEGREES THE AVERAGE DAILY TEMPERATURE IS ABOVE THE BASE TEMPERATURE. TO CALCULATE DEGREE DAYS: AVERAGE DAILY TEMPERATURE (ADT) = HIGH TEMPERATURE FOR DAY PLUS THE LOW DIVIDED BY 2. COOLING DEGREE DAY (CDD) = ADT - BASE TEMPERATURE. IF HDD OR CDD = OR < 0, DEGREE DAY (DD) = 0. CUMULATED DEGREE DAYS ARE IN WHOLE DAYS.

COOLTYPE

TYPE OF AC EQUIP CENTRAL SYSTEM = 1 INDIVIDUAL UNITS = 2 BOTH CENTRAL AND UNITS = 3 DON’T KNOW = 6 REFUSED = 7 NO ANSWER = 8 NOT APPLICABLE = 9

DIVISION CENSUS DIVISION NEW ENGLAND = 1 MIDDLE ATLANTIC = 2 EAST NORTH CENTRAL = 3 WEST NORTH CENTRAL = 4 SOUTH ATLANTIC = 5 EAST SOUTH CENTRAL = 6 WEST SOUTH CENTRAL = 7 MOUNTAIN = 8 PACIFIC = 9

DOEID DOE 4-DIGIT IDENTIFICATION NUMBER

DOLLARFO ESTIMATED COST OF FO IN DOLLARS 99999 = NOT APPLICABLE8.1-3

DOLLARLP

ESTIMATED COST OF LPG IN DOLLARS 99999 = NOT APPLICABLE

ELECRATE

LOCAL ELECTRIC RATE FOR 1000KWH AVERAGE RESIDENTIAL RATE, IN CENTS PER KILOWATT, OF ELECTRICITY COMPUTED FROM 1997 TYPICAL ELECTRIC BILL DATA. WHERE DATA WERE NOT AVAILABLE, A RATE WAS IMPUTED FROM KNOWN RATES IN AREAS NEAR THE HOUSEHOLD WITH MISSING INFORMATION. DATA INCLUDES AN ERROR TERM. FIELD CONTAINS ONE IMPLIED DECIMAL PLACE. 999 = NOT APPLICABLE

EQUIPAGE

AGE OF MAIN HEATING EQUIP LESS THAN 2 YEARS OLD = 1 2 TO 4 YEARS OLD = 2 5 TO 9 YEARS OLD = 3 10 TO 19 YEARS OLD = 4 20 YEARS OR OLDER = 5 AS OLD AS THE HOME (IF VOLUNTEERED) = 6 DON’T KNOW = 96 NOT APPLICABLE = 99 EQUIPM MAIN HOME HEATING EQUIPMENT STEAM = 2 CENTRAL WARM-AIR FURNACE WITH DUCTS = 3 HEAT PUMP = 4 BUILT-IN ELECTRIC UNITS IN THE WALLS, ETC. = 5 BUILT-IN FLOOR = 6 ROOM HEATER BURNING GAS, OIL, OR KEROSENE = 7 HEATING STOVE = 8 FIREPLACE = 9 PORTABLE ELECTRIC HEATERS = 10 PORTABLE KEROSENE HEATERS = 11 COOKING STOVE (USED TO HEAT HOME) = 12 EQUIPMENT NOT LISTED = 21 NOT APPLICABLE = 99

FUELHEAT

MAIN HOME HEATING FUEL CON 3 NATURAL GAS FROM UNDERGROUND PIPES = 1 BOTTLED GAS (LPG OR PROPANE) = 2 FUEL OIL = 3 KEROSENE = 4 ELECTRICITY = 5 WOOD = 7 SOLAR = 8 DISTRICT STEAM = 9 SOME OTHER FUEL = 21 DON’T HEAT HOME = 00

GALLONFO EST GALLONS OF FUEL OIL BOUGHT 999999 = NOT APPLICABLE

GALLONLP

EST GALLONS OF LPG BOUGHT OBS 6 999999 = NOT APPLICABLE8.1-4

HDD65 HEATING DD TO BASE 65 1-97 TO 12-97 HEATING DEGREE DAYS ARE THE NUMBER OF DEGREES THE AVERAGE DAILY TEMPERATURE IS BELOW THE BASE TEMPERATURE. TO CALCULATE DEGREE DAYS: AVERAGE DAILY TEMPERATURE (ADT) = HIGH TEMPERATURE FOR DAY PLUS THE LOW DIVIDED BY 2. HEATING DEGREE DAY (HDD) = BASE TEMPERATURE (E.G. 65 DEGREES) - ADT IF HDD = OR < 0, DEGREE DAY (DD) = 0. CUMULATED DEGREE DAYS ARE IN WHOLE DAYS.

LRG+DIV

LARGE STATE AND CENSUS DIVISION DESIGNATIONS NEW ENGLAND = 1 MIDDLE ATLANTIC LESS NY = 2 EAST NORTH CENTRAL = 3 WEST NORTH CENTRAL = 4 SOUTH ATLANTIC LESS FL = 5 EAST SOUTH CENTRAL = 6 WEST SOUTH CENTRAL LESS TX = 7 MOUNTAIN = 8 PACIFIC LESS CA = 9 NEW YORK STATE = 10 CALIFORNIA = 11 TEXAS = 12 FLORIDA = 13

LRGSTATE

LARGE STATE DESIGNATION NEW YORK STATE = 1 CALIFORNIA = 2 TEXAS = 3 FLORIDA = 4

NHSLDMEM

NUMBER OF HOUSEHOLD MEMBERS DON’T KNOW = 96 REFUSED = 97 NO ANSWER = 98 NOT APPLICABLE = 99 NWEIGHT THE FINAL WEIGHT THE FINAL WEIGHT (REFLECTING THE PRODUCT OF THE PRE-SECOND STAGE WEIGHT AND THREE ADJUSTMENTS)

POOR100 BELOW 100 PERCENT OF POVERTY POVERTY DEFINED AS 100 PERCENT OF POVERTY LINE. POVERTY LINE VARIES WITH HOUSEHOLD SIZE (1-9), AGE AND HOUSEHOLD INCOME. FOR HOUSEHOLD SIZE OF : 1 - AGE 65 AND OVER, LESS THAN $ 7,525 1 - AGE 64 AND UNDER, LESS THAN $ 8,163 2 - AGE 65 AND OVER, LESS THAN $ 9,491 2 - AGE 64 AND UNDER, LESS THAN $ 10,507 3 - LESS THAN $ 12,516 4 - LESS THAN $16,036 5 - LESS THAN $18,952 6 - LESS THAN $21,389 7 - LESS THAN $24,268 8 - LESS THAN $27,091 9 OR MORE - LESS THAN $31,971 POOR 100% = 1 NONPOOR = 0 NO ANSWER = 8

REGIONC CENSUS REGION NORTHEAST = 1 MIDWEST = 2 SOUTH = 3 WEST = 4

SQFTREG

MODEL-BASED EST. OF HEATED SQ FT 99999 = NOT APPLICABLE8.1-5

TYPEHUQ RESP REPORTED TYPE OF HOME MOBILE HOME = 1 SINGLE-FAMILY DETACHED = 2 SINGLE-FAMILY ATTACHED = 3 APARTMENT BUILDING WITH 2-4 UNITS = 4 APARTMENT BUILDING WITH 5 OR MORE UNITS = 5

UGASRATE

LOCAL NATURAL GAS RATE FOR MCF AVERAGE RESIDENTIAL RATE FOR MCF OF NATURAL GAS COMPUTED FROM 1997 TYPICAL NATURAL GAS BILL DATA. WHERE DATA WERE NOT AVAILABLE, A RATE WAS IMPUTED FROM KNOWN RATES IN AREAS NEAR THE HOUSEHOLD WITH MISSING INFORMATION. DATA INCLUDES AN ERROR TERM. HOUSEHOLDS THAT DO NOT USE NATURAL GAS ARE CODED 9999 FOR NOT APPLICABLE. FIELD CONTAINS TWO IMPLIED DECIMAL PLACES.

YEARMADE

YEAR HOME BUILT BEFORE 1940 = 1 1940-49 = 2 1950-59 = 3 1960-69 = 4 1970-76 = 5 1977-79 = 6 1980-86 = 7 1987-89 = 8 1990 = 9 1991 = 10 1992 = 11 1993 = 12 1994 = 13 1995 = 14 1996 = 15 1997 = 16 NOT APPLICABLE = 99 YEARS1 INFANTS IN HH UNDER 1 NOT APPLICABLE = 99

YEARS2CHILDREN IN HH 1-12 NOT APPLICABLE = 99

YEARS3 ADULTS IN HH OVER 65 DON’T KNOW = 96 REFUSED = 97 NO ANSWER = 98 NOT APPLICABLE = 99

YEARS4 ADULTS IN HH OVER 75 NOT APPLICABLE = 998.1-6 REFERENCE

1. U.S. Department of Energy - Energy Information Administration, Residential Energy Consumption Survey: Household Energy Consumption and Expenditures 1997 , 1999. Washington, DC. Report No. DOE/EIA-0321(97). <http://www.eia.doe.gov/emeu/recs/recs97/publicusefiles.html>