Btu as provided by the Secretary, 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 Secretary 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 annual energy consumption, determined according to section 6.1.8 or 6.2.5 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 Secretary, the resulting product then being rounded off to the nearest dollar per year. (ii) For an electric water heater, the product of the annual energy consumption, determined according to section 6.1.8 or 6.2.5 of appendix E of this subpart, times the representative average unit cost of electricity in dollars per kilowatt-hour as provided by the Secretary, divided by 3412 Btu per kilowatt-hour, the resulting quotient then being rounded off to the nearest dollar per year. (2) The energy factor for the water heaters shall be (i) For a gas or oil water heater, as determined by section 6.1.7 or 6.2.4 of appendix E of this subpart rounded off to the nearest 0.01. (ii) For an electric water heater, as determined by section 6.1.7 or 6.2.4 of appendix E of this subpart 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 Secretary determines are likely to assist consumers in making purchasing decisions and which are derived from the application of Appendix E of this subpart. (4) The alternative uniform test method for measuring the energy consumption of untested water heaters shall be that set forth in section 7.0 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 Secretary, 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 Secretary 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 electric heaters, shall be the product of: (i) The average annual electric energy consumption in kilowatt-hours per year, determined according to section 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 regional annual operating cost for primary electric heaters, shall be the product of: (i) The regional annual electric energy consumption in kilowatt-hours per year for primary heaters determined according to section 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. (3) The estimated operating cost per million Btu output shall be (i) For primary and supplementary electric heaters and unvented gas and oil heaters without an auxiliary electric system, the product of: (A) One million; and (B) the representative unit cost in dollars per Btu for natural gas, propane, or oil, as provided pursuant to section 323(b)(2) of the Act as appropriate, or the quotient of the representative unit cost in dollars per kilowatt-hour, as provided pursuant to section 323(b)(2) of the Act, divided by 3,412 Btu per kilowatt hour, the resulting product then being rounded off to the nearest 0.01 dollar per million Btu output; and (ii) For unvented gas and oil heaters with an auxiliary electric system, the product of: (A) The quotient of one million divided by the rated output in Btu's per hour as determined in 3.4 of appendix G of this subpart; and (B) the sum of: (1) The product of the maximum fuel input in Btu's per hour as determined in 2.2. of this appendix. times the representative unit cost in dollars per Btu for natural gas, propane, or oil, as appropriate, as provided pursuant to section 323(b)(2) of the Act, plus (2) the product of the maximum auxiliary electric power in kilowatts as determined in 2.1 of appendix G of this subpart times the representative unit cost in dollars per kilowatthour as provided pursuant to section 323(b)(2) of the Act, the resulting | quantity shall be rounded off to the nearest 0.01 dollar per million Btu output. (4) The rated output for unvented heaters is the rated output as determined according to either sections 3.3 or 3.4 of Appendix G of this subpart, as appropriate, with the result being rounded to the nearest 100 Btu per hour. (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 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 Secretary, 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 multi plied 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 Secretary 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 oper ating 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 con sumption 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 kilowatthour as provided by the Secretary, 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 Secretary 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 cycle, determined according to 4.5 of Appendix J to this subpart, and the representative average unit cost in dollars per Btu for oil or gas, as appropriate, as provided by the Secretary, the resulting product then being rounded off to the nearest dollar per year. (2) The energy factor for automatic and semi-automatic clothes washers shall be the quotient of the cubic foot capacity of the clothes container as determined in 3.1 of Appendix J to this subpart divided by the clothes washer energy consumption per cycle, expressed as the sum of the machine electrical energy consumption and the maximum normal water energy consumption as determined in 4.4 and 4.3, respectively, of Appendix J to this subpart. The resulting be rounded off to the nearest 0.01 cubic foot per kilowatt-hour. (3) Other useful measures of energy consumption for automatic or semiautomatic clothes washers 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 J to this subpart. (k) Humidifiers. (1) The estimated annual operating cost for central system humidifiers shall be (i) Where heat is supplied by an electric furnace or electric resistance heating, the sum of: (A) The product of the average annual electric furnace or electric resistance heating energy consumption in kilowatt-hours per year, determined according to 4.1 of Appendix K1 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act plus (B) the product of the average annual supplementary electrical energy consumption in kilowatt-hours per year, determined according to 4.2 of Appendix K1 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, the resulting sum then being rounded off to the nearest dollar per year, and (ii) Where heat is supplied by an electric heat pump, the sum of: (A) The product of the average annual electric heat pump energy consumption in kilowatt-hours per year, determined according to 4.3 of Appendix K1 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act plus (B) the product of the average annual supplementary electrical energy consumption in kilowatt-hours per year, determined according to 4.2 of Appendix K1 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, the resulting sum then being rounded off to the nearest dollar per year, and (iii) Where heat is supplied by a gas or oil fired forced air furnace, the sum of: (A) The product of the average annual gas or oil furnace energy consumption in Btu's per year, determined according to 4.4 or 4.5, respectively, of Appendix K1 of this subpart, and the representative average unit cost in dollars per Btu for gas or oil, as appropriate, as provided pursuant to section 323(b)(2) of the Act plus (B) the product of the average annual supplementary electrical energy consumption in kilowatt-hours per year, determined according to 4.2 of Appendix K1 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act; the resulting sum then being rounded off to the nearest dollar per year. (2) The estimated annual operating cost for room humidifiers shall be (i) Where heat is supplied by an electric furnace or electric resistance heating, the sum of: (A) The product of the average annual electric furnace or electric resistance heating energy consumption in kilowatt-hours per year, determined according to 4.1 of Appendix K2 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act plus (B) the product of the average annual supplementary electrical energy consumption in kilowatt-hours per year, determined according to 4.2 of Appendix K2 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, the resulting sum then being rounded off to the nearest dollar per year, and (ii) Where heat is supplied by an electric heat pump, the sum of: (A) The product of the average annual electric heat pump energy consumption in kilowatt-hours per year, determined according to 4.3 of Appendix K2 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, plus (B) the product of the average annual supplementary electrical energy consumption in kilowatt-hours per year, determined according to 4.2 of Appendix K2 of this subpart, and the representative average unit cost in dollars per kilowatt-hour as provided pursuant to section 323(b)(2) of the Act, the resulting sum then being rounded off to the nearest dollar per year, and (iii) Where heat is supplied by a gas or oil fired forced air furnace, gas or oil boiler, or unvented gas heater, the sum of: (A) The product of the average annual gas or oil furnace, gas or oil boiler, or unvented gas heater energy consumption in Btu's per year, determined according to 4.4 or 4.5, respectively, of Appendix K2 of this subpart, and the representative average |