Appliances / Heat pump water heaters

Cheapest heat pump water heaters to run

Water heating is one of the biggest energy bills in a home. Heat pump water heaters use a fraction of the electricity of a standard electric tank. Yearly use is the ENERGY STAR test figure. We ranked all 539 ENERGY STAR certified models by yearly electricity cost at the U.S. average price. Open any model to see the cost in your state.

Shop by size

Compare like with like: the cheapest models to run in the size you need.

Under 50 gallons (231)50 to 65 gallons (104)66 gallons and up (204)

120-volt integrated 68 models

#	Model	Size	kWh / yr	Per year	13 years
1	GE Profile PF40S10FPY01	40 gal	724	$132	$1,712
2	Friedrich PROH40 T0 FD120-M	36 gal	780	$142	$1,844
3	Friedrich PROH40 T0 FD120-MSO	36 gal	780	$142	$1,844
4	Rheem PROPH40 T0 RH120-M	36 gal	780	$142	$1,844
5	Rheem PROPH40 T0 RH120-MSO	36 gal	780	$142	$1,844
6	Rheem XE40T10HM00U0	36 gal	780	$142	$1,844
7	Rheem XE40T10HMS00U0	36 gal	780	$142	$1,844
8	Richmond 10E40-HP120M	36 gal	780	$142	$1,844
9	Richmond 10E40-HP120MS	36 gal	780	$142	$1,844
10	Ruud PROUH40 T0 RU120-M	36 gal	780	$142	$1,844
11	Ruud PROUH40 T0 RU120-MSO	36 gal	780	$142	$1,844
12	Friedrich PROH65 T0 FD120-M	59 gal	971	$177	$2,296
13	Friedrich PROH65 T0 FD120-MSO	59 gal	971	$177	$2,296
14	Rheem PROPH65 T0 RH120-M	59 gal	971	$177	$2,296
15	Rheem PROPH65 T0 RH120-MSO	59 gal	971	$177	$2,296

240-volt integrated 371 models

#	Model	Size	kWh / yr	Per year	13 years
1	Friedrich PROH40 T2 FD400-15	36 gal	643	$117	$1,521
2	Rheem PROPH40 T2 RH375-15	36 gal	643	$117	$1,521
3	Rheem PROPH40 T2 RH400-15	36 gal	643	$117	$1,521
4	Rheem XE40T10H22U0	36 gal	643	$117	$1,521
5	Richmond 10E40-HP5U15	36 gal	643	$117	$1,521
6	Ruud PROUH40 T2 RU375-15	36 gal	643	$117	$1,521
7	Ruud PROUH40 T2 RU400-15	36 gal	643	$117	$1,521
8	GE Profile PH40S10BPY01	40 gal	773	$141	$1,828
9	A. O. Smith HPS10-50H45DV 2 series	46 gal	831	$151	$1,965
10	A. O. Smith HPSN10-50H45DV 2 series	46 gal	831	$151	$1,965
11	A. O. Smith HPTS-50 2 series	46 gal	831	$151	$1,965
12	American HPS10250H045DV 2 series	46 gal	831	$151	$1,965
13	Lochinvar HPSA050KD 2 series	46 gal	831	$151	$1,965
14	RELIANCE WATER HEATERS 10-50-DHPTS 2 series	46 gal	831	$151	$1,965
15	State HPSX-50-DHPT 2 series	46 gal	831	$151	$1,965

split-system 100 models

#	Model	Size	kWh / yr	Per year	13 years
1	Eco-Logical OMNI-50HP1-1A	46 gal	681	$124	$1,610
2	Eco-Logical OMNI-50HP2-1A	46 gal	769	$140	$1,818
3	SANCO2 GS5-45HPC-D HP + ECO-43SSAQB	43 gal	868	$158	$2,053
4	SANCO2 GS5-45HPC HP + ECO-43SSAQB	43 gal	868	$158	$2,053
5	Smart Solar SSG2-ES 65	65 gal	893	$162	$2,112
6	A. O. Smith HPACO-45 1+AXST-50LBTTP 1 family	48 gal	915	$166	$2,164
7	A. O. Smith HPACO-45C 1*+AXST-50LBCTTP 1 family	48 gal	915	$166	$2,164
8	American MHPCO-45 1+MXST-50LBTTP 1 family	48 gal	915	$166	$2,164
9	Giant GTHPCO-45 1*+GTXST-50LBTTP 1 family	48 gal	915	$166	$2,164
10	GSW WATER HEATERS GHPCO-45 1+GXST-50LBTTP 1 family	48 gal	915	$166	$2,164
11	John Wood JWHPCO-45 1*+JWXST-50LBTTP 1 family	48 gal	915	$166	$2,164
12	Lochinvar LHPCO-45 1+LXST-50LBTTP 1 family	48 gal	915	$166	$2,164
13	RELIANCE WATER HEATERS RHPCO-45 1+RXST-50LBG 1 family	48 gal	915	$166	$2,164
14	State SHPCO-45 1+SXST-50LBG 1 family	48 gal	915	$166	$2,164
15	A. O. Smith HPACO-45 1+AXST-50S 1 family	46 gal	923	$168	$2,183

Source: ENERGY STAR certified heat pump water heaters (U.S. EPA) and EIA average residential electricity price, Jan–Aug 2026. Energy use is the official test figure; real use varies.

Cheapest heat pump water heaters to run

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120-volt integrated 68 models

240-volt integrated 371 models

split-system 100 models

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