Appendix C to this subpart, times the representative average unit cost in dollars per kilowatt-hours as provided by the Administrator plus (B) the product of the per-cycle water energy consumption for gas-heated or oil-heated water for the normal cycle, in Btu's per cycle, determined according to 4.2 of Appendix C to this subpart, times the representative average unit cost in dollars per Btu for gas or oil, as appropriate, as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year.

(2) The estimated annual operating cost for dishwashers having a truncated normal cycle as defined in 1.5 of Appendix C to this subpart shall be

(i) When electrically-heated water is used, the product of the following three factors: (A) The representative average use cycle of 416 cycles per year, (B) one-half the sum of (1) the total per-cycle energy consumption for the normal cycle as defined in 1.3 of Appendix C to this subpart plus (2) the total per-cycle energy consumption for the truncated normal cycle as defined in 1.5 of Appendix C to this subpart, each in kilowatt-hours and determined according to 4.4 of Appendix C to this subpart, and (C) the representative average unit cost in dollars per killowatt-hour as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year, and

(ii) When gas-heated or oil-heated water is used, the product of: The representative average use cycle of 416 cycles per year times the sum of (A) one-half the product of the per-cycle machine electrical energy consumption for the normal cycle as defined in 1.3 of Appendix C to this subpart, determined according to 4.3 of Appendix C to this subpart, times the representative average unit cost in dollars per kilowatt-hour as provided by the Administrator, plus one-half the product of the per-cycle machine electrical energy consumption for the truncated normal cycle as defined in 1.5 of Appendix C to this subpart, determined according to 4.3 of Appendix C to this subpart, times the representative average unit cost in dollars per kilowatthour as provided by the Administrator

plus (B) one-half the product of the per-cycle water energy consumption for gas-heated or oil-heated water for the normal cycle as defined in 1.3 of Appendix C to this subpart, in Btu's per cycle, determined according to 4.2 of Appendix C to this subpart, times the representative average unit cost in dollars per Btu for gas or oil, as appropriate, as provided by the Administrator, plus one-half the product of the per-cycle water energy consumption for gas-heated or oil-heated water for the truncated normal cycle as defined in 1.5 of Appendix C to this subpart, in Btu's per cycle, determined according to 4.2 of Appendix C to this subpart, times the representative average unit cost in dollars per Btu for gas or oil, as appropriate, as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year.

(3) The energy factor for dishwashers, expressed in cycles per kilowatthour shall be—

(i) For dishwashers not having a truncated normal cycle, as defined in 1.5 of Appendix C to this subpart, capable of being preset, the reciprocal of the total per cycle energy consumption for the normal cycle in kilowatthours per cycle, determined according to 4.4 of Appendix C to this subpart, and

(ii) For dishwashers having a truncated normal cycle, as defined in 1.5 of Appendix C to this subpart, capable of being preset, the reciprocal of one-half the sum of (A) the total per-cycle energy consumption for the normal cycle plus (B) the total per-cycle energy consumption for the truncated normal cycle, each in kilowatt-hours per cycle and determined according to 4.4 of Appendix C to this subpart.

(4) Other useful measures of energy consumption for dishwashers shall be those measures of energy consumption for dishwashers which the Administrator determines are likely to assist consumers in making purchasing decisions and which are derived from the application of Appendix C to this subpart.

(d) Clothes dryers. (1) The estimated annual operating cost for clothes dryers shall be

(i) For an electric clothes dryer, the product of the following three factors:

80-181 O-81--3

(A) The representative average-use cycle of 416 cycles per year, (B) the total per-cycle energy consumption in kilowatt-hours per-cycle, determined according to 4.1 of Appendix D to this subpart, and (C) the representative average unit cost in dollars per kilowatt-hour as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year, and

(ii) For a gas clothes dryer, the product of the representative average-use cycle of 416 cycles per year times the sum of (A) the product of the gas dryer electric per-cycle energy consumption in kilowatt-hours per cycle, determined according to 4.2 of Appendix D to this subpart, times the representative average unit cost in dollars per kilowatt-hour as provided by the Administrator plus (B) the product of the total gas dryer gas energy consumption per cycle, in Btu's per cycle, determined according to 4.5 of Appendix D of this subpart, times the representative average unit cost in dollars per Btu as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year.

(2) The energy factor, expressed in pounds of clothes per kilowatt-hour, for clothes dryers shall be either the quotient of a 3-pound bone-dry test load for compact dryers, as defined by 2.6.1 of Appendix D to this subpart or the quotient of a 7 pound bone-dry test load for standard dryers, as defined by 2.6.2 of Appendix D to this subpart, as applicable, divided by the clothes dryer energy consumption per cycle, as determined according to 4.1 for electric clothes dryers and 4.6 for gas clothes dryers of Appendix D to this subpart, the resulting quotient then being rounded off to the nearest hundredth (.01).

(3) Other useful measures of energy consumption for clothes dryers shall be those measures of energy consumption for clothes dryers which the Administrator determines are likely to assist consumers in making purchasing decisions and which are derived from the application of Appendix D to this subpart.

(e) Water Heaters. (1) The estimated annual operating cost for water heaters shall be

(i) For a gas or oil water heater, the product of the representative average use cycle of 365 days per year times the sum of (A) The product of the average daily auxiliary electrical energy consumption in kilowatt-hours per day, determined according to section 4.5.1 of Appendix E of this subpart, times the representative average unit cost of electricty in dollars per kilowatt-hour as provided by the Administrator plus (B) The product of the average daily gas or oil energy consumption in Btu per day, determined according to section 4.5.2 of Appendix E of this subpart, times the representative average unit cost of gas or oil, as appropriate, in dollars per Btu as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year.

(ii) For an electric water heater, the product of the following three factors: (A) The representative average use cycle of 365 days per year, (B) The average daily energy consumption in kilowatt-hours per day, determined according to section 4.5.4 of Appendix E of this subpart, and (C) The representative Average unit cost of electricity in dollars per kilowatt-hour as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year.

(2) The energy factor for water heaters shall be

(i) For a gas or oil water heater, the quotient of the daily hot water energy consumption determined according to section 4.6 of Appendix E of this subpart divided by the average daily energy consumption as determined according to section 4.5.3 of Appendix E of this subpart, the resulting quotient then being rounded off to the nearest 0.01; and

(ii) For an electric water heater, the quotient of the daily hot water energy consumption determined according to section 4.6 of Appendix E of this subpart divided by the product of the average daily energy consumption as determined according to section 4.5.4 of Appendix E of this subpart times 3,412 Btu per kilowatt-hour, the re

sulting quotient then being rounded off to the nearest 0.01.

(3) Other useful measures of energy consumption for water heaters shall be those measures of energy consumption for water heaters which the Administrator determines are likely to assist consumers in making purchasing decisions and which are derived from the application of Appendix E of this subpart.

(f) Room air conditioners-(1) The estimated annual operating cost for room air conditioners, expressed in dollars per year, shall be determined by multiplying the following three factors: (i) Electrical input power in kilowatts as determined in accordance with 4.2 of Appendix F to this subpart, (ii) The representative average-use cycle of 750 hours of compressor operation per year, and (iii) A representative average unit cost of electrical energy in dollars per kilowatt-hour as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year.

(2) The energy efficiency ratio for room air conditioners, expressed in Btu's per watt-hour, shall be the quotient of: (i) The cooling capacity in Btu's per hour as determined in accordance with 4.1 of Appendix F to this subpart divided by: (ii) The electrical input power in watts as determined in accordance with 4.2 of Appendix F to this subpart the resulting quotient then being rounded off to the nearest 0.1 Btu per watt-hour.

(3) The average annual energy consumption for room air conditioners, expressed in kilowatt-hours per year, shall be determined by multiplying together the following two factors: (i) Electrical input power in kilowatts as determined in accordance with 4.2 of Appendix F to this subpart, and (ii) A representative average use cycle of 750 hours of compressor operation per year, the resulting product then being rounded off to the nearest kilowatthour per year.

(4) Other useful measures of energy consumption for room air conditioners shall be those measures of energy consumption which the Administrator determines are likely to assist consumers in making purchasing decisions and

which are derived from the application of Appendix F to this subpart.

(g) Unvented Home Heating Equipment. (1) The estimated annual operating cost for primary heaters, shall be the product of (i) the average annual electric energy consumption in kilowatt-hours per year, determined according to 3.1 of Appendix G of this subpart and (ii) the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, the resulting product then being rounded off to the nearest dollar per year.

(2) The estimated hourly operating cost for supplementary heaters, shall be the product of (i) the maximum power input in kilowatts, determined according to 2.1 of Appendix G of this subpart, (ii) 1 hour of continuous use, and (iii) the representative average unit cost in dollars per kilowatt-hour as provided pursuant section 323(b)(2) of the Act, the resulting product then being rounded off to the nearest 0.01 dollar per hour.

to

(3) The estimated hourly operating cost for unvented home heating equipment shall be the product of (i) the maximum power input in kilowatts for electric heaters, determined according to 2.1 of Appendix G of this subpart, (ii) 1 hour of continuous use, and (iii) the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, the resulting product then being rounded off to the nearest 0.01 dollar per hour.

(4) The estimated regional annual operating cost for primary heaters, shall be the product of (i) the regional annual electric energy consumption in kilowatt-hours per year for primary heaters determined according to 3.2 of Appendix G of this subpart and (ii) the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, the resulting product then being rounded off to the nearest dollar per year.

(5) Other useful measures of energy consumption for unvented home heating equipment shall be those measures of energy consumption for unvented home heating equipment which the Secretary of Energy determines are

likely to assist consumers in making purchasing decisions and which are derived from the application of Appendix G of this subpart.

(h) Television sets. (1) The estimated average annual operating cost for television sets shall be the product of:

(i) The average annual energy consumed by the television set in kilowatt-hours per year, determined according to 3.0 of Appendix H of this subpart, and

(ii) The representative average unit cost of energy in dollars per kilowatthour as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year.

(2) The receiver energy efficiency factor for television sets shall be:

(i) For color television sets, the product of the estimated minimum power requirement (.130 kilowatts) and the average annual hours of use (2,200 hr/ yr.), divided by the average annual energy consumed by the television set in kilowatt-hours per year, determined according to 3.0 of Appendix H to this subpart. The resultant is then multiplied by 100 and expressed as a percent.

(ii) For monochrome television sets, the product of the estimated minimum power requirement (.040 kilowatts) and the average annual hours of use (2,200 hr/yr.), divided by the average annual energy consumed by the television set in kilowatt-hours per year determined according to 3.0 of Appendix H of this subpart. The result is then multiplied by 100 and expressed as a percent.

(3) Other useful measures of energy consumption for televison sets shall be those measures of energy consumption for television sets which the Administrator determines are likely to assist consumers in making purchasing decisions and which are derived from the application of Appendix H of this subpart.

(i) Kitchen ranges and ovens. (1) The estimated annual operating cost for conventional ranges, conventional cooking tops, conventional ovens, microwave ovens, and microwave/conventional ranges shall be the sum of the following products: (i) The total annual electrical energy consumption

for any electrical energy usage, in kilowatt-hours (kWh's) per year, times the representative average unit cost for electricity, in dollars per kWh, as provided pursuant to section 323(b)(2) of the Act; plus (ii) the total annual gas energy consumption for any natural gas usage, in British thermal units (Btu's) per year, times the representative average unit cost for natural gas, in dollars per Btu, as provided pursuant to section 323(b)(2) of the Act; plus (iii) the total annual gas energy consumption for any propane usage, in Btu's per year, times the representative average unit cost for propane, in dollars per Btu, as provided pursuant to section 323(b)(2) of the Act. The total annual energy consumption for conventional ranges, conventional cooking tops, conventional ovens, microwave ovens, and microwave/conventional ranges shall be as determined according to 4.3.1, 4.2.2, 4.1.2.5 or 4.1.2.6, 4.4.3, and 4.5.1.3, respectively, of Appendix I to this subpart. The estimated annual operating cost shall be rounded off to the nearest dollar per year, except for microwave ovens, for which the estimated annual operating cost shall be rounded off to the nearest one-quarter of a dollar per year.

(2) The cooking efficiency for conventional cooking tops, conventional ovens, and microwave ovens shall be the ratio of the cooking energy output for the test to the cooking energy input for the test, as determined according to 4.2.1.3, 4.1.3 and 4.4.2, respectively, of Appendix I to this subpart. The final cooking efficiency values shall be rounded off to three significant digits.

(3) The cooking efficiency for conventional ranges, and microwave/conventional ranges shall be determined according to 4.3.2 and 4.5.2, respectively, of Appendix I to this subpart, which weights the cooking efficiencies of the major cooking components of the range. The final cooking efficiency values shall be rounded off to three significant digits.

(4) The energy factor for conventional ranges, conventional cooking tops, conventional ovens, microwave ovens, and microwave/conventional ranges shall be the ratio of the annual

useful cooking energy output to the total annual energy input, as determined according to 4.3.3, 4.2.3, 4.1.4, 4.4.4 and 4.5.3, respectively, of Appendix I to this subpart. The final energy factor values shall be rounded off to three significant digits.

(5) There shall be two estimated annual operating costs, two cooking efficiencies, and two energy factors for convertible cooking appliances—(i) an estimated annual operating cost, a cooking efficiency and an energy factor which represent values for those three measures of energy consumption for the operation of the appliance with natural gas; and (ii) an estimated annual operating cost, a cooking efficiency and an energy factor which represent values for those three measures of energy consumption for the operation of the appliance with LP-gas.

(6) The estimated annual operating cost for convertible cooking appliances which represents natural gas usage, as described in paragraph (i)(5)(i) of this section, shall be determined according to paragraph (i)(1) of this section using the total annual gas energy consumption for natural gas times the representative average unit cost for natural gas.

(7) The estimated annual operating cost for convertible cooking appliances which represents LP-gas usage, as described in paragraph (i)(5)(ii) of this section, shall be determined according to paragraph (i)(1) of this section using the representative average unit cost for propane times the total annual energy consumption of the test gas, either propane or natural gas.

(8) The cooking efficiency for convertible cooking appliances which represents natural gas usage, as described in paragraph (i)(5)(i) of this section, shall be determined according to paragraphs (i)(2) and (i)(3) of this section when the appliance is tested with natural gas.

(9) The cooking efficiency for convertible cooking appliances which represents LP-gas usage, as described in paragraph (i)(5)(ii) of this section, shall be determined according to paragraphs (i)(2) and (i)(3) of this section, when the appliance is tested with either natural gas or propane.

(10) The energy factor for convertible cooking appliances which represents natural gas usage, as described in paragraph (i)(5)(i) of this section, shall be determined according to paragraph (i)(4) of this section when the appliance is tested with natural gas.

(11) The energy factor for convertible cooking appliances which represents LP-gas usage, as described in paragraph (i)(5)(ii) of this section, shall be determined according to paragraph (i)(4) of this section when the appliance is tested with either natural gas or propane.

(12) Other useful measures of energy consumption for conventional ranges, conventional cooking tops, conventional ovens, microwave ovens and microwave/conventional ranges shall be those measures of energy consumption which the Secretary determines are likely to assist consumers in making purchasing decisions and which are derived from the application of Appendix I to this subpart.

(j) Clothes washers.

(1) The estimated annual operating cost for automatic and semi-automatic clothes washers shall be

(i) When electrically heated water is used, the product of the following three factors: (A) The representative average-use cycle of 416 cycles per year, (B) the total per-cycle energy consumption for the normal cycle in kilowatt-hours per cycle determined according to 4.6 of Appendix J to this subpart, and (C) the representative average unit cost in dollars per kilowatt-hour as provided by the Administrator, the resulting product then being rounded off to the nearest dollar per year, and

(ii) When gas-heated or oil-heated water is used, the product of: the representative average-use cycle of 416 cycles per year and the sum of both (A) the product of the per-cycle machine electrical energy consumption for the normal cycle in kilowatt-hours per cycle, determined according to 4.4 of Appendix J to this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided by the Administrator and (B) the product of the per-cycle water energy consumption for gas-heated or oil-heated water for the normal cycle, in Btu per