Qualified Natural Gas Water heaters with .62 or higher Energy Factor

The ENERGY FACTOR is the measure of overall efficiency for water heaters. This measurement is based on three factors: 1) the recovery efficiency, or how efficiently the heat from the energy source is transferred to the water; 2) stand-by losses, or the percentage of heat lost per hour from the stored water compared to the content of the water, and 3) cycling losses.

Brand Name Trade Names Model Number Rated Volume Energy Factor
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GCV-30-100 28 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPSH-40-200   40 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPSH-50-200  50 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPSX 50 200 50 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPSX 50L 200 50 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPSX 50Q 200  50 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GVR-40-100 40 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GVR-50-100 50 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GVRA-40-100  40 0.62
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GVR-30-100 30 0.63
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith XGV-40-100  40 0.63
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith XGV-40L-100 40 0.63
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith XGV-50-100  50 0.63
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith XGV-50L-100 50 0.63
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith XGVL-40-100 40 0.63
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPCR-40-200  40 0.64
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPCR-50-200  50 0.64
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPVH 40* 100 40 0.65
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPVH 50* 100 50 0.65
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPVT 40* 100   40 0.65
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPVT 50* 100 50 0.65
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPVX 50* 100 50 0.65
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPVR 40* 100 40 0.67
A.O. SMITH WATER PRODUCTS CO.   A.O. Smith GPVR 50* 100 50 0.67
A.O. SMITH WATER PRODUCTS CO.   ProMax  GDV 40 100 40 0.62
A.O. SMITH WATER PRODUCTS CO.   ProMax  GDV 40L 100 40 0.62
A.O. SMITH WATER PRODUCTS CO.   ProMax  GDV 50 100 50 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG12240S403N***     40 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG12250T403N*** 50 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG6240S403N***  40 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG6250T403N***  50 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG9240S403N***  40 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG9250T403N***  50 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation SG12140T403N***     40 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation SG6140T403N***   40 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation SG9140T403N***   40 0.62
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG12240T403N*** 40 0.63
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG6240T403N***  40 0.63
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation BFG9240T403N***  40 0.63
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation PDVG6240T42N***  40 0.66
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation PDVG6250T42N***  50 0.66
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation PDVG6250T60N***  50 0.66
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation PVG6240T42N***   40 0.66
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation PVG6250T42N***   50 0.66
AMERICAN WATER HEATER COMPANY   Ace, American, American Hardware, Americas Best, Apex, Aquamatic, Aqua Temp, Aqua Therm, Best, Best Deluxe, Champion, Craftmaster, De-Limer, Deluxe, Eagle, Envirotemp, Four Most, Hotmaster, Hotstream, Kenmore, King-Kleen, King-Line, Master Plumber, Nation PVG6250T60N***   50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PDVG12240T42N***     40 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PDVG12250T42N***     50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PDVG12250T60N***     50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PDVG9240T42N***  40 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PDVG9250T42N***  50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PDVG9250T60N***  50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PVG12240T42N***  40 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PVG12250T42N***  50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PVG12250T60N***  50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PVG9240T42N***   40 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PVG9250T42N***   50 0.66
AMERICAN WATER HEATER COMPANY   XCL Energy Saver, Whirlpool, U.S. Supply, Tru Value, True-Test, Thoro-Clean, The Energy Saver Plus, The Earls Energy Saver Plus, The Earls Energy Conservation Water Heater, The Earls Energy, Sure-Fire, Supreme, Super-Flo, Super Eagle, Standard, Special De PVG9250T60N***   50 0.66
APOLLO COMFORT PRODUCTS  APOLLO    A** 50 SCVIT L5 200     50 0.62
APOLLO COMFORT PRODUCTS  APOLLO    A** 50 XSVIT L5 200     50 0.62
APOLLO COMFORT PRODUCTS  Apollo    A10 40 YXRT L 40 0.63
APOLLO COMFORT PRODUCTS  Apollo    A10 50 YXRT L 50 0.63
APOLLO COMFORT PRODUCTS  Apollo    A6 40 YXRT L  40 0.63
APOLLO COMFORT PRODUCTS  Apollo    A6 50 YXRT L  50 0.63
APOLLO COMFORT PRODUCTS  Apollo    A10 40 YQVIT L2* 100 40 0.65
APOLLO COMFORT PRODUCTS  Apollo    A10 40 YRVIT L2* 100 40 0.65
APOLLO COMFORT PRODUCTS  Apollo    A10 50 YQVIT L2* 100 50 0.65
APOLLO COMFORT PRODUCTS  Apollo    A10 50 YQVIT L5* 100 50 0.65
APOLLO COMFORT PRODUCTS  Apollo    A10 50 YRVIT L2* 100 50 0.65
APOLLO COMFORT PRODUCTS  Apollo    A6 40 YQVIT L2* 100 40 0.65
APOLLO COMFORT PRODUCTS  Apollo    A6 40 YRVIT L2* 100 40 0.65
APOLLO COMFORT PRODUCTS  Apollo    A6 50 YQVIT L2* 100 50 0.65
APOLLO COMFORT PRODUCTS  Apollo    A6 50 YQVIT L5* 100 50 0.65
APOLLO COMFORT PRODUCTS  Apollo    A6 50 YRVIT L2* 100 50 0.65
APOLLO COMFORT PRODUCTS  HydroHeat  A6 40 YBDS L 40 0.62
BRADFORD WHITE CORPORATION   Bradford White   M-4-50S***N-12   50 0.62
BRADFORD WHITE CORPORATION   Bradford White   MIITW65T***N12   65 0.62
BRADFORD WHITE CORPORATION   Bradford White   M-I-TW40L***N-12    40 0.62
BRADFORD WHITE CORPORATION   Bradford White   M-I-TW50L***N-12    48 0.62
BRADFORD WHITE CORPORATION   Bradford White   PDX250T***N10    48 0.62
BRADFORD WHITE CORPORATION   Bradford White   M1TW40S*FBN(A)   40 0.63
BRADFORD WHITE CORPORATION   Bradford White   M1TW50S*FBN(A)   50 0.63
BRADFORD WHITE CORPORATION   Bradford White   M-4-403T***N-12  40 0.63
BRADFORD WHITE CORPORATION   Bradford White   M-4-40T***N-12 40 0.63
BRADFORD WHITE CORPORATION   Bradford White   M-4-50S***N-13   50 0.63
BRADFORD WHITE CORPORATION   Bradford White   M-I-TW50L***N-13    48 0.63
BRADFORD WHITE CORPORATION   Bradford White   M-4-403T***N-13  40 0.64
BRADFORD WHITE CORPORATION   Bradford White   M-4-40T***N-13 40 0.64
BRADFORD WHITE CORPORATION   Bradford White   MIITW50T***N12   48 0.64
BRADFORD WHITE CORPORATION   Bradford White   M-I-TW40L***N-13    40 0.64
BRADFORD WHITE CORPORATION   Bradford White   M-II-TW50T***N-10   48 0.65
BRADFORD WHITE CORPORATION   Bradford White   M2TW50T*FBN(A)   48 0.66
BRADFORD WHITE CORPORATION   Bradford White   M2TW65T*FBN(A)   65 0.66
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M1TW40S*BN1   40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M1TW50S*BN1   50 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M1TW60T*FBN(A)   60 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M2TW65T*BN1   65 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M430T***N7  30 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M430T***N7-ATO*******   30 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M430T*FBN(A)  30 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M430T*FBN(B)  30 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4403S***N5  40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4403S***N7  40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4403S***N7-ATO*******  40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4403S*FBN(A)    40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4403S*FBN(B)    40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M440T***N5  40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M440T***N7  40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M440T***N7-ATO*******   40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M440T*FBN(A)  40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M440T*FBN(B)  40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4503*FBN(A)  50 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4503*FBN(B)  50 0.62
BRADFORD WHITE CORPORATION   Bradford White, JetGlas M-4-50S**FBN2    50 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MIITW65T***N15   65 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MIITW65T***N15-ATO******* 65 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MITW40L***N15    40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MITW40L***N15-ATO******* 40 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MITW50L***N15    48 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MITW50L***N15-ATO******* 48 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas PDX250T***N13    48 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas PDX250T***N13-ATO******* 48 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas PDX250T*BN(A)    48 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas PDX250T*FBN(A)   48 0.62
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4503***N5  50 0.63
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M4503***N7-ATO*******   50 0.63
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M2TW50T*BN1   48 0.64
BRADFORD WHITE CORPORATION   Bradford White, Jetglas M430T***N5  30 0.64
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MIITW50T***N15   48 0.64
BRADFORD WHITE CORPORATION   Bradford White, Jetglas MIITW50T***N15-ATO******* 48 0.64
LOCHINVAR CORPORATION    Energy Saver, Golden Knight, Knight     DVN041   40 0.62
LOCHINVAR CORPORATION    Energy Saver, Golden Knight, Knight     DVN051   48 0.62
LOCHINVAR CORPORATION    Energy Saver, Golden Knight, Knight     DVN065-2 65 0.62
LOCHINVAR CORPORATION    Energy Saver, Golden Knight, Knight     LTN030G-EF 30 0.62
LOCHINVAR CORPORATION    Energy Saver, Golden Knight, Knight     LTN040G-EF 40