CONTENTS
.. 1 Introduction.. Refrigerators.4 Freezers. Clothes Washers and Dishwashers.9 Water Heaters.ll Room Air Conditioners.I4 Central Air Conditioners. ,.16 Central Heat Pumps.18 Gas Furnaces and Boilers. ,.20 Oil Furnacesand Boilers.. 23 Comparison Shopping and Lifecycle Costs.26 For Morelnformation... 28
THE POWER IS IN YOUR HANDS. USE IT W S lY 1 E.

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The Most Energy-Efficient Appliances-1991 Edition Copyright @ 1991 by the American Council for an Energy-Efficient Economy, Washington, D.G.

INTRODUCTION

The Importance of Energy-Efficient Appliances
Using appliances and heating and cooling equipment costs an average household more than $1000 per year. You can sharply reduce your own energy bill by using high-efficiency appliances and space conditioning equipment. Highly efficient appliances may be slightly more expensive to buy than comparable models with lower or average efficiencies. However, the extra first cost for a more efficient appliance is paid back through reduced energy bills long before the product wears out. Energy-efficient appliances also have a positive effect on the national economy and the environment. The efficient use of oil, gas, and electricity cuts petroleum imports, improves US. economic competitiveness, and reduces the environmental degradation associated with energy production and use. One-third of the electricity produced in the U.S. is consumed in our homes. Refrigerators alone use the equivalent of the output of over 20 large nuclear power plants-about 5% of the nations total electricity consumption. If all the households in the US. had the most efficient refrigerators currently available, the electricity savings would eliminate the need for about 10 large power plants!
National Appliance Efficiency Standards
On March 17, 1987, President Reagan signed into law the National Appliance Energy Conservation Act of 1987. This law established minimum efficiency standards for major home appliances and heating and cooling equipment. The standards for clothes washers and dishwashers took effect January 1, 1988, requiring a cold water rinse option on new models. The standards for most other appliances took effect on January 1, 1990. The standards for central air conditioners and furnaces will not take effect until 1992, because it will take longer to make the necessary changes in these larger products. We estimate that these standards will save consumers at least $28 billion over the lifetimes of the products sold through the year 2000, or about $300 per household. Furthermore, the standards will reduce peak electricity demand by the equivalent of 25 large power plants. Even though the standards eliminate the production of energy-guzzling appliances, consumers can still benefit from selecting highly-efficient appliances that significantly exceed the national appliance efficiency standards. These high efficiency appliances provide the opportunity to achieve substantial energy savings. Appliances are still available over a broad range of efficiencies, and consumers would be wise to shop carefully
for efficient models. After all, the air conditioner, furnace, or refrigerator you buy today will still be in use 15 or 20 years from now.

Utility Rebate Programs

Some utilities offer rebates to consumers who purchase energy-efficient appliances. Rebates reduce the net purchase price of high-efficiency models, making them even more attractive to consumers. By offering incentives for the purchase of high-efficiency equipment, utilities are buying energy supplied through conservation at a lower cost than through traditional means, such as building new power plants. Rebates are most common on high-efficiency heat pumps and central air conditioners. Rebates on room air conditioners and water heaters are also sometimes available. Rebate programs are more common among electric companies than gas companies, although some gas utilities offer rebates for high-efficiency furnaces and other products. If you plan to buy a major appliance soon, ask your utility if they offer rebates for efficient models.
The Information in this Booklet
This booklet lists, to the best of our knowledge, the most energy-efficient residential appliances available in the US. as of July, 1990. Because of space limitations, only the very highest-rated models are listed within each appliance category. The models listed here represent fewer than 5% of all the different models currently available. Many more appliances are above average in terms of efficiency, but space limitations prevent us from listing them all. Our lists are based on information in the most recent product directories published by the appliance industry associations. We have tried to include highly efficient models not listed in the directories where information is available. However, we only include models that are mass-produced and widely-distributed in the US. Also, we only include products for which there are standardized efficiency ratings. Therefore, this booklet does not cover ranges, ovens, clothes dryers, solar water heaters, wood stoves, tankless water heaters, portable space heaters, or air-to-air heat exchangers. The efficiency ratings are based on the standardized tests that manufacturers are required to conduct on their products. The same test ratings are used on the yellow EnergyGuide labels now required for most home appliances. The lists of refrigerators, freezers, clothes washers, and dishwashers include the estimated annual energy cost as it appears on the most recent EnergyGuide labels. The base price of energy (such as the cost per kilowatt-hour of electricity) used to determine the price on the EnergyGuide labels has changed in recent years. Some labels based on the older, cheaper cost can still be found in showrooms. Therefore, when comparing EnergyGuide labels, use the same energy price.

The lists of furnaces, boilers, water heaters, air conditioners and heat pumps include their efficiency ratings instead of estimated energy use and cost. The energy use for these appliances varies greatly from house to house depending on climate, family size, and other factors. But the efficiency rating is a good indicator of relative energy use and operating cost-the higher the efficiency, the lower the energy use and operating cost. We realize that energy performance is one of several important criteria for selecting home appliances. We do not collect information on product reliability and other concerns. However, energy-efficient appliances are generally high quality products due to the better materials and components used in their construction. The model numbers in this booklet are used by manufacturers in their product directories. In some cases, appliance dealers use abbreviated model numbers (for example, dropping the first number or letter). An asterisk (*) appearing in a model number indicates a digit or letter that varies with features of the appliance not affecting efficiency and capacity (for example, color).
How to Use This Information
When you buy an appliance, you pay more than just the sales price-you commit yourself to paying the cost of running the appliance for as long as you own it. These energy costs can add up. For example, running a refrigerator for 15-20 years typically costs three times as much as the initial price of the refrigerator. The sum of the purchase price and the energy costs of running an appliance over its lifetime is called its lifecycle cost. The lifecycle costs of energy-efficientappliances are typically lower than the lifecycle costs of average models. Worksheets for comparing the lifecycle costs of different models of appliances are provided on page 27 of this guide. When shopping for major appliances, you may want to call several stores or dealers to check the price and availability of different models. Ask the salesperson for information about the efficiency of each model. The yellow EnergyGuide labels can help you compare similar models. We recommend that you disregard the ranges listed on the EnergyGuide labels, since they have not been updated for some time. In comparison shopping, use only the information given for the particular models you are considering. If you cannot find some of the models listed in this guide, you can still use the information in this booklet to your advantage. Compare the efficiencies of the models you can find to those listed here. The models listed in this booklet represent a very small fraction of all the new appliances now available; you may find products that just missed getting listed in this edition.

TPK160BNP 16.0 86960'1 16.0 87960*1 16.0 87962** 16.0 16.5 to 18.4 cubic feet RTl7*MC'O 17.0 FP'-17TF'-O 16.6 FPD-l7TIF'-* 16.6 RT17F**U3' 16.6 RTl74LC'l 16.6 RTl74ZC*1 16.6 FPCI-l8TIE*-I 18.0 TPK 180ZN1* 18.0 RTl7F**T3' 16.6 RT17F7'P3A 16.6 83877** 16.6 PGTN17**A' 16.6 PRD17A61** 16.6 YPRD17A61*0 16.6 95-1757-**-2 16.6 95-1757-*'-3 16.6 95-1787-**-3 16.6 95-1787-**-4 16.6 18.5 to 20.4 cubic feet FPCE-l9TF'-O 18.6 FPCI-l9TF*-0 18.6 FPCI-l9TIF*-O 18.6 FPCI-l9TIF*-l 18.6 FPD-l9TF*-O 18.6 FPE-l9TF*-0 18.6 FPE-19TIF'-1 18.6 18.6 FPES-l9TF*-0 FPZ-l9TF*-O 18.6 RT19F*U36 18.6 RT19F9*V3B PGTN198'AO PGTNl98*A1 RTl93MC*0 RT194ZC'l RTl95MC*0 RT196MC** RT197MC*0 RT199MC'* 18.6 18.6 18.6 18.6 18.6 18.6 18.6 18.6 18.6
1. This brand available by special order from Sun Frost (Arcata, California) only.
Annual energy cost @Se/kWh
General Electric Hotpoint Kenmore Kenmore General Electric Hotpoint Hotpoint Kelvinator Gibson Gibson Kelvinator Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Kenmore Philco Philco Philco Philco Tappan White-Westinghouse White-Westinghouse Frigidaire Frigidaire Frigidaire Frigidaire Frigidaire Frigidaire Frigidaire Frigidaire Gibson Kelvinator Kelvinator Kelvinator
Volume 20.5 to 24.4 cubic feet TBX22ZL 21.7 CTX22GL 21.7 87927* 21.6 21.6 86927* TBX21*L 20.7 CTX21*L 20.7 MTX21*M 20.7 20.6 96017'0 RT21F7*SB' 20.6 RT21F6'T3' 20.6

kWh/yr

945 945
97017'2*5* 86901** 86912" 86915* 87515' 87901'2 87901'3 87912*2 87912*5* 93012*0 93017'0 96001'0 PRD21A61*O TPRD21A61 *O PGTN21* * A 0 RD21LbMRO 95-2187-"-5 RT21*JC** RT21*MC" FPCE-21TF*-* FPCI-21TIF'-* FPCE-21TIF*-O FPCE-21TIL*-* FPCI-21TF'-* FPE-21TF'-* FPS-21TL*-* FPZ-21TF'-* RT21F 6 ' W TMK206ENl. TS1206EN2* TSK206EN**
20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6 20.6
Annual energy cost 88flkWh
Model Volume kWh/yr Side-by-side freezer, automatic defrost 18.5 to 20.4 cubic feet Amana w20* 19.Amana 36071 19.Amana 36078 19.Maytag RS'20A 20.Admiral NS20L7 20.Crosley CNS20V6 20.Jenn-Air JRS203 20.Magic Chef RC20K'-2A 20.Montgomery Ward HMG19100 20.Montgomery Ward HMG21*04 20.Norge NNS207K 20.Norge 20.NNS208K Amana 19.SCI9J Whirlpool ED20AK*S*lt 20.ED20HK*W'O* 20.WhirlDool Whirlpool ED20PK*S*l' 20.Whirlpool ED20PK'WO* 19.Whirlpool ED20ZK'W*O* 19.Kenmore 8490*** 19.Kenmore 94000** 19.Kenmore 95104** 19.20.5 to 22.4 cubic feet Frigidaire FPCIS-22VL*-O 22.RSD22A 21.Maytag Amana 22.SC22J Amana SX22J 22.Amana SL22JB 22.General Electric 21.TFX22DL General Electric 21.TFX22ZL Hotpoint 21.CSXH22GL RCA 21.MSX22GL Maytag RSW22A 21.Whirlpool ED22PK*S*O' 21.Whirlpool 21.ED22PM*S*0 General Electric 21.TFXH22KL 22.5 to 26.4 cubic feet Frigidaire FPCE-24VP-24.0 Maytag RSD24A 1124 23.8 Amana 36551 25.Amana 36558 25.Amana SC25J 25.Amana SC25JP 25.Amana SL25J 25.Amana SX25J 25.2 1199

MOST EFFICIENT GAS-FIRED WATER HEATERS Energy Brand Model 1st Hr Factor Rated storage less than 40 gallons American Appliance DVPB86 American Appliance DVPB35LP 40 HE-N 71 Bock 65 Bock 40 HE-X Bradford-White M-l II-403T5CN-65 Bradford-White M-Ill-403T5CX-65 Lochinvar HEN65 U S. Water Heater Co. M-lll-R403T5CX-65

Storage

1. This model is designed for use as a combination space and water heater
MOST EFFICIENT GAS-FIRED WATER HEATERS (cont) Energy Brand Model 1st Hr Factor Approximately 40 gallons rated storage Marathon MG74 MG40345H Marathon Sears Roebuck and Co. 449.74 Sears Roebuck and Co. 449.74 American Appliance 86 N463V 72 N463V-LP American Appliance N463V Craftmaster N463V-LP Craftmaster Mor-Flo 86 N463V 72 N463V-LP Mor-Flo 65 463SV 63 American Appliance 72 N2F463T American Appliance Craftmaster 65 463SV Craftmaster 463SV Mor-Flo 63 Approximately 50 gallons rated storage Marathon MG71 Marathon MG50345H Sears Roebuck and Co. 449.71 Sears Roebuck and Co. 449.71 Lochinvar HEL62 Lochinvar HEN62 U S. Water Heater Co. M-llLR503S5CN-62 U S. Water Heater Co. M-lll-R503S5CX-62 American Appliance N2F563T Craftmaster 61 MOST EFFICIENT OIL-FIRED WATER HEATERS Model 1st Hr EF 32PP F-I-305E50EZ RCG-3OEZ FG3016EZ OGL-3OEZ 30ES MOST EFFICIENT ELECTRIC WATER HEATERS 1st Hr Energy Factor Rating Model
Approximately 30 gallons rated storage MPMPlOPT6-W TCL 30 2LRT6-W 98 98
Brand Bock Bradford-White Carlin Ford Rheem Bock

Storage 30 28

Marathon Marathon Reliance State

Storage Capacity

(Many models have Energy Factor ratings of 96-97%.)
MOST EFFICIENT ELECTRIC WATER HEATERS (cont.) 1st Hr Energy Storage Model Rating Factor Capacity Approximately 40 gallons rated storage M-Ill-30R5SS-12 153.310460 449-310410 449-314410 449-320410 TCL 40 2LRT6-W M-Ill-RE30R5SS-40 42
Bradford-White Sears Roebuck Sears Roebuck Sears Roebuck Sears Roebuck State U.S. Water Heater
(Many models have Energy Factor ratings of 96%.) Approximately 50 gallons rated storage M-Ill-50T5SS-MX50155S 58 81G-52D 57 81GV52' 57 8VG52-1, HIVG52S 57 MEG52-1 449-310510 CL81GX52D M-Ill-RE50T5SS-12 M-59 61

Bradford-White Marathon Rheem Rheem Richmond Rudd Sears Roebuck Sutherland U.S. Water Heater Vaughn
(Many models have Energy Factor ratings of 95%.) Approximately 60 gallons rated storage Marathon Marathon Marathon Marathon MX60'30 MX60*38 MX60*45 MX60*60
(Many models have Energy Factor ratings of 95%.)

HEAT PUMP WATER HEATERS

A heat pump water heater operates on the same principal as a refrigerator or an air conditioner-it removes heat from the surrounding air and delivers it to the water in the tank. Heat pump water heaters use about 1/3 as much electricity as ordinary electric resistance water heaters.
Brand Reliance State Therma-Stor Therma-Stor Reliance State Reliance State Therma-Stor Therma-Stor Therma-Stor
MOST EFFICIENT HEAT-PUMP WATER HEATERS Model 1st Hr EF 81 3.82 1AHPWl HP-3,3-4 SS1AHP4/CHP-3,3-3.3.1 TS-HP-80-HRA TS-HP-120-18-3.3.52 1AHPWl HP-3.3-4 SSlAHP4/CHP-3,3-3.66 1AHPWl HP-3,3-2.2.9 SS1AHP4/CHP-3,3-2.9 TS-HPV-AC-2.9 TS-HPV-AC-120 TS-HP-120-2.9

Storage 120

ROOM AIR CONDITIONERS
Room air conditioners are rated by their Energy Efficiency Ratio (EER), the ratio of the cooling output divided by the power consumption. The higher the EER, the more efficient the air conditioner. The 1990 national standards for room air conditioners vary with the design and cooling capacity of each unit. On average, the 1990 standard requires a minimum EER of about 8.6.
Airtemp Airtemp Climatrol Fedders Friedrich Friedrich Friedrich Friedrich Sharp Teknika Amana General Electric Panasonic Quasar Sharp Sharp Tekn ika Teknika

MBtulhr Btulhr

5,000to 6,999 Btu/hr cooling capacity
C3R06F2A G3R06F2A M3R06F2A A3R06F2A SQ05H10 SQO6H10 SQ07HlO YQ06H10 AF-607M6 AK61 E 7P2MA AMEO6LA CW-601JU HQ2062DW AF-508M6 AF-608M6 AM63E AM64E 5.80 5.80 5.80 5.80 5.60 6.50 7.10 6.20 6.30 5.90 6.65 6.00 6.00 6.00 5.50 6.50 6.30 6.30 5,800 5,800 5,800 5,800 5,600 6,500 7,100 6,200 6,300 5,900 6,650 6,000 6,000 6,000 5,500 6,500 6,300 6,300 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 9.8 9.6 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.115
Brand Friedrich Friedrich Teknika Teknika
MOST EFFICIENT ROOM AIR CONDITIONERS (cont.) Model MBtu/hr Btulhr EER 7,000 to 8,999 Btu/hr coolina caDacitv
SS07H1O A SS08H1O A AK83E AK84E 51GMB0091 ACDO9LAXl KCDO9LAXl SMl OH1O A AVXl OFA CW-lO2VS12L6U HQ2102CW SS12HlOA AMH12AA HQ2122DW SM14H1 O A 51GMAll41 51GMB1141 ACDl4AAXl 106.8761492 C3L14E2A G3L14E2A M3L14E2A A3L14E2A CW-1401QU CW-141VS12L6U WV163HE WW163 SS15H30A ACD15DAX1 ACS15DAXl AESl5DAV1 KCSl5DAXl KESl5DAVl 106.AC1504XTO 7.20 8.20 8.00 8.00 9.00 9.00 9.00 10.30 10.00 10.00 10.00 12.00 12.00 12.00 14.00 13.50 14.00 13.50 14.00 14.00 14.00 14.00 14.00 13.50 13.50 16.40 16.40 15.00 15.00 15.00 15.00 15.00 15.00 15.00 15.00 7,200 8,200 8,000 8,000 9,000 9,000 9,000 10,300 10.000 10,000 10,000 12,000 12,000 12,000 14,000 13,500 14,000 13,500 14.000 14,000 14,000 14,000 14,000 13,500 13,500 11.0 10.5 9.7 9.7 12.0 12.0 12.0 12.0 11.6 11.6 11.6

9,000 to 10,999 Btu/hr cooling capacity Carrier General Electric Hotpoint Friedrich General Electric Panasonic Quasar Friedrich General Electric Quasar Friedrich Carrier Carrier General Electric Kenmore Airtemp Airtemp Climatrol Fedders Panasonic Panasonic Comfort-Aire Comfort-Aire Friedrich General Electric General Electric General Electric Hotpoint Hotpoint Kenmore Whirl pool Friedrich Panasonic Quasar Carrier Friedrich Sharp
11,000 to 12,999 Btu/hr cooling capacity
__ 115 10.9.5 9.5 ___115 _
13,000 to 74,999 Btu/hr cooling capacity 10.5 10.2 10.2 10.2 10.2 10.0 10.0 10.0 10.0 9.5 9.5 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.5 9.5 9.5 9.4 9.4 9.230 230
15,000 to 16,999 Btu/hr cooling capacity 16,400 16,400 15,000 15,000 15,000 15,000 15,000 15,000 15,000 15,000 17,000 to 19,999 Btu/hr cooling capacity SL19H30 19.00 19,000 CW-1802QU 18.00 18,000 HQ2182DW 18.00 18,000 77GMA1183 17.60 17,600 EL19H35 18.80 18.800 AF-1807M8 18.50 18,500

CENTRAL AIR CONDITIONERS

Central air conditioners (CACs) are rated according to their Seasonal Energy Efficiency Ratio (SEER). This is the cooling output divided by the power input for an average U.S. climate. The average new CAC sold in 1988 had a SEER of about 9. The national appliance efficiency standard for split system central air conditioners will take effect in 1992, requiring a minimum SEER of 10. Many older CACs have SEERSof only 6 or 7. If you need or want to replace the outdoor (compressor) unit of your current air conditioner, make sure the indoor (blower coil) unit is compatible with the new outdoor unit. A highly efficient outdoor unit may not achieve its rated efficiency if paired with an older blower coil. Ask your serviceman to properly match your system to achieve its highest efficiency. The air conditioners listed below are grouped by their cooling capacity; each ton represents 12,000 BTU/hour of cooling capacity.
Model/ Condensina ModeKoil Capacity: approximately 2.0 tons TTX724A TWV739E15-C TTX724A TWH739E15-C TTX724A THD080A9V3tTXF736S5t BAY24x045 ATN024A THD080A9V3tTXF736S5t BAY24XO45 TUC080B9V3tTXC736S5t ATN024A BAY24x045 HS22-261V-1P CB15-41-1 PtLB53081CD HS22-261V-IP CB19-26-1PtLB53081CD HS22-261V-1P CBH19-26-1PtLB-53081CD
Camcitv: , TTS730A TTS730A HS22-311V-1P TTX730A TTX730A ATN030A
Trane Trane Trane American Standard American Standard Lennox Lennox Lennox Trane Trane Lennox Trane Trane American Standard Lennox Coleman Coleman American Standard Amana CoI ei an n Lennox

13.45 13.40 13.40 13.35 13.00 13.00 12.90 12.90 15.70 15.70 13.50 13.45 13.40 13.35 13.25 13.20 13.20 13.15 12.95 12.95 12.90

Btulhr

26,400 26,400 25,800 25,600 25,800 25,400 24,000 24,000 30,800 30,800 31,400 32,000 31,800 32,200 32,000 29,600 29,600 31,000 30,400 29,600 31,200
amroximafelv 2.5 tons ,. TUC080B9V3tTXC736S5 TDC080B9V3tTXC736S5 CB15-41-1PtLB53081CD TWV739E15-C TWH739E15-C TWV739E15-C
C14-41-1FFtLB53081CD 9435E833K 3736-823K THD080A9V3tTXF736S5t BAY24X045 SCFC36AOVD 9435E833 CB19-31-1PtLB53081CD
HS22-311V-1P 9430GATNOBOA ZRCF30U01D 9430G911 HS22-311V-1P
MOST EFFICIENT CENTRAL AIR CONDITIONERS (cont.) Modell Condensing ModellCoil SEER capacity: approximately 3.0 tons
TWV739E15-C TWH739E15-C TWV739E15-C TWH739E15-C TUC080B9V3tTXC736S5 TDC080B9V3tTXC736S5 CB15-41-1 P CB15-41-IP A50-XXtEEP TWH064E15-C TWH064E15-C TWV064E15-C 16.90 16.90 16.20 16.20 15.45 15.45 15.00 15.00 14.00 13.85 13.80 13.75

Btuthr

Trane TTS730A Trane TTS730A Trane TTS736A Trane TTS736A Trane TTS736A Trane TTS736A Lennox HS14-411V-6P Lennox HS14-413V-6Y Goodman CTS36-1 (GMC, Janitrol, Franklin) American Standard Trane American Standard Trane Trane Trane Trane Trane Trane Lennox Lennox Trane American Standard Trane Trane American Standard Lennox Lennox ATN036A TTX736A ATN036A
33.200 33,200 39,000 39,000 36,000 36,000 40,000 40,000 40,000

39,500 40,000

Capacity: approximately 4.0 tons TTS748A TWV064E15-C TTS748A TUCIOOB9V5tTXCO,TXC754S TTS748A TUCl OOB9V5tTXC,TXA064S TTS748A THDIOOA9V5tTHX060S TTS748A TDCI 2089V5tTXCO,TXC754S TTS748A TDCI 20B9V5tTXC,TXA064S HS14-51IV-6P CB15-65-1P HS14-513V-6Y CB15-65-1P TTX742B TWH064E15-C ATN042A TWH064E15-C
TTX742B TTX748A ATN042A HS14-511V-6P HSI4-513V-6Y TWV064E15-C TWEO9OA THDlOOA9V5tTXH060S5t BAY24XO45 CB15-46-1P CB15-46-IP
15.15 15.00 15.00 15.00 14.50 14.50 14.00 14.00 13.75 13.70 13.60 13.60 13.35 13.20 13.20
49.500 46;500 48,500 48,500 46,000 48,500 52,000 52,000 45,000 45,000 45,000 52,000 44,500 49.500 49,500

CENTRAL HEAT PUMPS

Central heat pumps provide both cooling in the summer and heating in the winter. However, heat pumps do not perform well over extended periods of sub-freezing temperatures. The cooling performance of heat pumps, like that of central air conditioners, is rated as a SEER. Heating performance is measured by the Heating Season Performance Factor (HSPF), a ratio of the estimated seasonal heating output divided by the seasonal power consumption for an average US. climate. A typical new heat pump has an HSPF of about 6.5 and a SEER of about 9. The national appliance efficiency standard for split system heat pumps will require a minimum HSPF of 6.8 and a minimum SEER of 10, effective in 1992. The heat pumps listed below are grouped by their heating and cooling capacities and ranked in order of their heating efficiencies. If you live in a region with significant heating and cooling seasons (e.g., mid-Atlantic states), you should seek a heat pump that performs well in both seasons. If you live in a region where summer cooling is much more important than winter heating (e.g., Florida), then you will want a unit that is particularly efficient for cooling.

Btuihr Brand Outdoor Unit Btuihr Heat
Coleman Lennox Lennox Lennox Lennox Lennox
Cool Capacity: approximately 7.5 tons 3718-611 3718-833 19,400 HP22-211-1 P CB19-21-1Pt 19,800 LB34792BE HP22-211-1P CBHl9-21-IPt 19,800 LB-34792BE HP22-211-1P CB19-26-1Pt 19,800 LB34792BE HP22-211-1 P CBH19-26-1Pt 19,800 LB-34792BE HP22-211-1P CHl6-41-1FFt 19,700 LB-34792BE

Indoor Unit

SEER 11.30 12.85 12.85 12.85 12.85 11.90
20,200 19,000 19,000 19,000 19,000 19,700
8.00 7.90 7.90 7.90 7.90 7.60
Capacity: approximately 2.0 tons
Carrier Lennox Lennox Lennox Lennox Coleman Coleman Lennox 38QE92430 HP22-261-1P HP22-261-1P HP22-261-1P HP22-261-1P 3724-911 3724-911 HP22-261-1 P 38QE02430t 40QE02430 CB19-31-1P t LB34792BE CBH19-31-1P t LB-34792BE CB19-26-1Pt LB34792BE CBH19-26-1P t LB-34792BE 6932-DUVO 3724-833 CH16-41-1FFt LB-34792BE 24,000 24,800 24,800 24,400 24,400 23,400 23,800 24,200 13.35 13.60 13.60 13.25 13.25 11.10 11.30 12.50 25,800 24,000 24,000 24,000 24,000 24,400 24,800 24,200 8.75 8.40 8.40 8.20 8.20 8.20

8.00 7.90

MOST EFFICIENT CENTRAL HEAT PUMPS (cont)
Btuihr Brand Outdoor Unit
Cool SEER Capacity: approximately 2.5 tons

Btulhr Heat

Trane Trane Lennox Lennox Lennox Lennox Rheem
TWS730A TWS730A HP21-311-1P HP21-311-1P HP21-311-1 P HP21-311-1P RPGB-030JA UPGB-030JA TWX730B 38QE93630 TWS736A TWS736A TWX736A TWX736A TWA036A HP22-411-1P HP22-411-1P TWA036A 3736-811 3736-811
TWV739E15-C TWH739E15-C CB19-31-1Pt LB34792BG CBH19-31-1Pt LE-34792BG CB19-41-1Pt LB34792BG CBHl9-41-1Pt LB-34792BG RHQA-13t RCQB-BO30
31,800 31,800 31,000 31,000 30,800 30,800 30,200
16.40 16.40 13.40 13.40 13.00 13.00 12.20
29,600 29,600 31,200 31,200 31,000 31.000 29,400 29,400 28,800 35,400 34,600 34,600 34.600 34,400 36,400 36,400 36,400 36,200 38,500 38,500 43,500 43,500 42,000 42,000 43,000 43,000 41,500 43,000
8.70 8.70 8.65 8.65 8.55 8.55 8.40 8.40 8.05 9.05 8.75 8.75 8.65 8.60 8.55 8.50 8.50 8.50 8.50 8.50 9.40 9.40 8.50 8.50 __ 8.30 8.30 8.30 8.30
Trane Carrier Trane Trane Trane Trane American Standard Lennox Lennox American Standard Coleman Coleman Trane Trane Lennox Lennox Lennox Lennox Coleman Lennox
UHQA-13t 30,200 12.20 RCQB-BO30 TWV739E15-C 32,800 12.75 Capacity: approximately 3.0 tons 38QE03630t 40QE03630 TWV739E15-C TWH739E15-C TWH064E15-C TWV064E15-C TWH064E15-C CB19-41-1P t LB34792BG CBH19-41-1 t P LB-34792BG TWV064E15-C 36,800 37,600 37,600 40,000 39,500 42,000 35,600 35,600 41,500 14.05 15.20 15.20 12.85 12.80 12.00 12.80 12.80 11.85 11.30 11.30 15.05 15.05 12.80 12.80 11.50 11.50 10.60 10.50
3736-823 37,000 3736-833 37,000 Capacity: approximately 3.5 tons TWS748A TWV064E15-C 48,000 TWS748 TWH064E15-C 48,000 HP22-461-1P CB19-51-1Pt 42,000 LB-34792BG HP22-461-1 P CH19-51-ltB1942,000 51-1PtLB-34792BG HP19-461-1P CB19-51-1P t 43,000 LB34792BG HP19-461-1P CH19-51tB19-51- 43,000 1PtLB-34792BG 3742-911 3736-833 41,500 HP19-461-1P GB19-51-1P 43.000

GAS FURNACES

New furnaces are rated by their Annual Fuel Utilization Efficiency (AFUE), a measure of overall seasonal performance. The average new gas furnace sold in 1988 had an AFUE of 75%. The national efficiency standard for furnaces will take effect in 1992, and it will require that each furnace have an AFUE of at least 78%. Furnaces are available over a broad range of efficiencies, depending on the sophistication of the equipment: Furnace feature Gas pilot light (no efficiency features) Electronic ignition Automatic vent damper Power combustion Condensing furnace Typical AFUE 62% 68% 76% 82%

go(+)%

Condensing furnaces are often priced much higher than less efficient furnaces. Accordingly, condensing furnaces are most economical in areas with long, cold winters. Homeowners in regions with moderate or mild winters may find that furnaces with AFUEs in the 80% to 85% range are their best buys. Also, when buying a new furnace, make sure the capacity is appropriate for your home (an oversized furnace will operate less efficiently).
MOST EFFICIENT GAS FURNACES Model Btulhr 30.000 to 60.000 BtdHr
398AAW030040 398AAZ030040 58SX040-BC 58SX040-FG 58SXA040-FG 398AAW030040 398AAZ030040 398AAW030040 398AAZ030040 GI 4Q3-40EG6E40DC13 UGR040D13 GSRl4Q4-50GSR14Q3-50NUGSOSOAF NULS050AF 867.769050 WU47-05-3N wu47-05-4L 3E436B 40,000 40,000 40,000 40,000 40,000 40,000 40,000 40,000 40,000 38,000 38,000 38,000 47,000 47,000 47,000 47,000 47,000 47,000 47,000 46.000
96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.6 96.2 95.4 95.4 95.0 94.8 94.6 94.6 94.6 94.6 94.6 94.0
Bryant Bryant Carrier Carrier Carrier Day and Night Day and Night Payne Payne Lennox Armstrong Glowcore Lennox Lennox Heil-Quaker Heil-Quaker Sears Roebuck and Co. Williamson Williamson Davton
MOST EFFICIENT GAS FURNACES (cont.) Model Btulhr 30,000 to 60,000 Btu/Hr (cont.) Heil-Quaker NDLKOSO(A,D)F 47,000 Heil-Quaker NUGK050MF 46,000 867.769412 46,000 Sears Roebuck and Co. Tempstar NDLK050(A,D)F 47,000 Williamson WD45-05-2 47,000 Brand
Williamson Duomatic Olsen Heil-Quaker Tempstar Carrier Day and Night Carrier Carrier Carrier Day and Night Sears Roebuck and Co. Amana Amana Duomatic Olsen Williamson Carrier Day and Night Carrier Carrier Day and Night Day and Night Duomatic Olsen Sears Roebuck and Co. Duomatic Olsen Amana Duomatic Olsen Duomatic Olsen Carrier Carrier Day and Night Day and Night Lennox Central Environmental Systems Central Environmental Systems Central Environmental Systems WU47-05-2 HDS 60M(70/60M) NULK050(L,M)F NULKOSO(L,M) F 58SXB060-CC 398BAW036060 58SXB060-GG 58SXB060-GG-L 58SXB080-GG-L 398BAZ036060 61.000 to 80.000 Btu/hr 867.769060 EGHW100DC3 EGHWlOODC3 HDS 70M C217-08-NOAH 58SXB080-BC 398BAW036080 58SXB080-GG 58SXBlOO-LG-L 398BAZ036080 398BAZ060100-L HDS 80M(90/80M) 867.769470 HCS2-81M 81,000 to 705,000 Btdhr EGHWlOODC3 HDS 90M HCS2-90M 58SXBlOO-HG 58SXBlOO-LG 398BAZ042100 398BAZ060100 G14Q4/5-100106,000 to 135,000 BWhr P1UDD16N11401A PlUDD20N13301A P2UDD16N11401 68,000 76,000 76,000 67,000 80,000 79,000 79,000 79,000 68,000 79,000 68,000 76,000 67,000 75,000 94,000 86,000 84,000 99,000 99,000 99,000 99,000 95.000 112,000 131,000 112,000 46.000 58;OOO 46,000 46,000 59,000 59,000 59,000 41,000 54,000 59,000

94.0 94.0 94.0 94.0 94.0 94.0 93.7 93.7 93.7 93.6 __ 93.6 93.5 93.5 93.5 93.5 __ 96.6 94.9 94.9 94.2 94.0 93.6 93.6 93.5 93.5 93.5 93.5 93.5 93.4 93.2 94.0 94.0 93.7 93.5 93.5 93.5 93.5 93.5 92.6 92.6 92.6
MOST EFFICIENT GAS FURNACES (cont.) Model Btulhr 706,000 to 135,000 Btu/Hr (cont.} Central Environmental P2UDD16P11401A 112,000 Systems Central Environmental P2UDD20N13301 131,000 Systems Central Environmental P2UDD20P13301A 131,000 Svstems Central Environmental PANU-LDl6N120A 112,000 Systems Central Environmental PANU-LD20Nl40A 131,000 Systems Central Environmental PBNU-LD16P120 112,000 Svstems Central Environmental PBNU-LDl6N120A 112,000 Systems Central Environmental PBNU-LD20N140A 131,000 Systems Central Environmental PBNU-LD20P140A 131,000 Svstems Brand
92.6 92.6 92.6 92.6 92.6 92.6 92.6 92.6 92.6
MOST EFFICIENT GAS BOILERS (HOT WATER) Model Btulhr 30,000 to 60,000 Btu/hr Hydrotherm A-50 B 47,000 Giowcore GB060-7 53;OOO 52,000 Buderus Logana 105/15 EnerRoval 60H 52,000 EnerRoyal 60HC 52,000 6OHWC 52.000 Heatmaker VHE-Weil-Mclain XG-2003A-PV 54,000 Burnham AHE-60 Weil-McLain 51,000 AHE-45 Weil-McLain 38,000 Peerless PDE-065 56,000 Bryant 237AAW002042 36,000 Bryant 237AAY002042 36,000 Carrier 61 SWB042 36.000 Carrier 61SWDXE-2 Crown 36.000 Day and Night 237AAW002042 36,000 Day and Night 237AAY002042 36,000 XE-2 Dunkirk 36.000 Metzger XE-2 36,000 Payne 237AAW002042 36,000 237AAY002042 36,000 Payne FS-2 Pennco 36,000 229.964421 36,000 Sears Roebuck and Co. 229.964122 36,000 Sears Roebuck and Co. Brand
90.4 89.0 87.4 87.0 87.0 87.0 87.0 86.5 85.5 85.3 84.8 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5 84.5
MOST EFFICIENT GAS BOILERS (HOT WATER) (cont.) Model Btulhr 61.000 to 90,000 Btu/hr A-100 B GB090-GV-3 VHE-4 XG-2004A-PV XG2004AV GG-75HEDS PDE-097 GG-75HEDP 97,000 to 150,000 Btu/hr A-150 6.C GB205/42 VHE-6 VHE-5 GV-GV-5 PDE-130
88,000 80,000 72,000 61,000 87,000 82,000 82,000 64,000 83,000 64,000 132,000 142,000 96,000 143,000 147,000 117,000 92,000 116,000 122,000 110,000
90.4 88.8 87.7 87.5 87.1 85.3 84.8 84.7 84.4 84.4 90.8 88.8 87.8 87.4 87.4 87.3 87.3 87.2 87.2 84.0
Hydrotherm Glowcore Buderus Logana Weil-Mclain Weil-Mclain Burnham Burnham SlanVFin Peerless SlanVFin Hydrotherm Glowcore Buderus Logana Buderus Loaana Weil-MclainWeil-Mclain Weil-Mclain Buderus Logana Weil-Mclain Peerless
Axeman-Anderson Burnham Burnham Burnham Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson Axeman-Anderson
MOST EFFICIENT GAS BOILERS (STEAM) Model Btulhr
108PGU XG-4004 XG-4005 XG-4006 87PGU 149PGU 74PG 108PG 128PGU 87PG 128PG 149PG 116,000 88,000 117,000 147,000 105,000 201,000 114,000 159,000 159,000 129.000 191,000 233,000

Purchase Price

$600 $520
Appliances Refrigerator A Refrigerator B
Annual Energy Estimated Discount Lifecyle cost Lifetime Factor cost X 20 ( $100 X 0.76 ) = $2120 X 20 ( $120 X 0.76 ) = $2344
From this calculation you learn that the refrigerator with the more expensive purchase price, model A,will actually cost you $224 less than the cheaper model over its lifetime.
Table 1. Characteristics of Appliances for Lifecycle Cost Comparisons

Appliance

Water Heater (gas or electric) Refrigerators and Freezers Room air conditioners Dishwashers Clothes washers

Average Lifetime (years)

Discount Factor*

0.76 0.81

0.84 0.78
(*) Based on a discount rate of 5% and increases in the price of energy of 2% per year above inflation.
Use the worksheets below to compare different models of appliances you are considering.
Worksheets for computing lifecycle costs
Electricity Price C/kWh Gas e/therm (Obtain from your utility bills or call your utilities)
Appliance Model Purchase Price

Annual Energy cost

Estimated Lifetime

Discount Factor

Lifecycle cost

+( +( +( +(

)= )= )= )= )= )=

+( +( +(

Unfortunately, accurate lifecycle cost comparisons between different central air conditioners and furnaces must also include information concerning local climate and the condition of a home. Therefore, this procedure for computing lifecycle costs does not apply to these products.

FOR MORE INFORMATION

ACEEE also publishes the 1991 Consumer Guide to Home Energy Savings. This illustrated, 252-page book contains expanded listings of energyefficient appliances and practical suggestions on how to reduce energy use and help protect the environment. This guide is available in bookstores, and it costs $6.95. Most of the listings in this booklet were derived from the following product directories, available from the respective industry associations. Directory of Certified Refrigerators and Freezers, Association of Home Appliance Manufacturers, Chicago, January, 1990. 1990 Directory of Certified Room Air Conditioners, Association of Home Appliance Manufacturers, Chicago, March 1990. Consumers Directory of: Certified Efficiency Ratings for Residential heating and Water Heating Equipment, Gas Appliance Manufacturers Association, Arlington, VA, April, 1990. Directory of Certified Unitary Air Conditioners, Unitary Air-Source Heat Pumps, Sound-Rated Outdoor Unitary Equipment, Air Conditioning and Refrigeration Institute, Arlington, VA, Feb.-July 1990. Additional information was obtained from the California Energy Commission and the Federal Trade Commission.

ABOUT ACEEE

The American Council for an Energy-Efficient Economy (ACEEE) is a nonprofit orgapization which gathers, evaluates and disseminates information to stimulate the use of energy conserving technologies and practices. ACEEE conducts research and analyses to convert information regarding energy efficiency into forms that are useful to utilities, private companies, government officials and individual consumers. We also sponsor workshops and conferences to enhance information exchange between the various groups interested in this topic. ACEEE IS supported by a broad variety o foundations, government f organizations, research institutes, ut es and corporations. The results of our work are available in a number of books. technical reports and consumer guides. If you would like more information about ACEEE activities and publications, please write to us: ACEEE Suite Connecticut Ave. NW Washington, DC 20036