kWh Index

Water heaters, ranked by UEF

1,253 water heaters from 74 brands, collapsed from 1,260 published configurations. Each priced at the national average rate, so the ranking is what it costs to run rather than what it says on the box.

ModelUEFCosts to run
GE Profile PK80S10FNY014.50$202 a year
GE Profile PH80S10BNY014.50$202 a year
GE Profile PH50S10BNY014.50$202 a year
GE Profile PH80S10BPY014.40$207 a year
GE Profile PH65S10BPY014.30$212 a year
GE Profile PH65S10BNY014.30$212 a year
GE Profile PH50S10BPY014.30$212 a year
Eco-Logical OMNI-50HP2-1A4.23$141 a year
LG APHWC502M4.20$217 a year
LG APHWC502L4.20$217 a year
LG APHWC502D4.20$217 a year
GE Profile PK50S10FNY014.20$142 a year
GE Profile PH40S10BPY014.20$142 a year
Jetglas RE2HP65*-1NCTT4.20$217 a year
Bradford White RE2HP65**-1NCTT4.20$217 a year
Phnix KA06-804.14$220 a year
Arctic Arctic-HP-Hot Water-KA06-804.14$220 a year
Eco-Logical OMNI-80HP2-1A4.11$221 a year
LG APHWC802M4.10$222 a year
LG APHWC802L4.10$222 a year
LG APHWC802D4.10$222 a year
GE Profile PK65S10FNY014.10$145 a year
Lennox WHHP080T45MD240S****4.10$222 a year
Ariston ARIHPWH-80-T4.10$222 a year
Ruud PROUH80 T2 RU400-SO4.07$222 a year
Ruud PROUH80 T2 RU400-304.07$222 a year
Ruud PROUH80 T2 CD400-SO4.07$222 a year
Ruud PROUH80 T2 CD400-304.07$222 a year
Ruud CPROPH80 T2 CD375-SO4.07$222 a year
Ruud CPROPH80 T2 CD375-304.07$222 a year
Richmond 10E80-HP5US304.07$222 a year
Richmond 10E80-HP5U304.07$222 a year
Richmond 10CE80-HP5US304.07$222 a year
Richmond 10CE80-HP5U304.07$222 a year
Richmond 10CE80-HP5S304.07$222 a year
Rheem XE80T10HS45U14.07$222 a year
Rheem XE80T10H45U14.07$222 a year
Rheem PROPH80 T2 RH400-SO4.07$222 a year
Rheem PROPH80 T2 RH400-304.07$222 a year
Rheem ECEPH80 T2 RH400-SO4.07$222 a year
Rheem ECEPH80 T2 RH400-304.07$222 a year
Rheem ECEPH80 T2 RH375-SO4.07$222 a year
Rheem CXE80T10HS45UO4.07$222 a year
Rheem CXE80T10HS45U14.07$222 a year
Rheem CXE80T10H45U14.07$222 a year
Rheem CPROPH80 T2 RH400-SO4.07$222 a year
Rheem CPROPH80 T2 RH400-304.07$222 a year
Rheem CPROPH80 T2 RH375-SO4.07$222 a year
Friedrich PROH80 T2 FD400-SO4.07$222 a year
Friedrich PROH80 T2 FD400-304.07$222 a year
Ruud PROUH65 T2 CD400-SO4.05$217 a year
Ruud PROUH65 T2 CD400-304.05$217 a year
Ruud CPROPH65 T2 CD375-SO4.05$222 a year
Ruud CPROPH65 T2 CD375-304.05$222 a year
Richmond 10CE65-HP5US304.05$217 a year
Richmond 10CE65-HP5U304.05$217 a year
Rheem CPROPH65 T2 RH375-SO4.05$217 a year
Navien NWP500S080AUMB4.05$232 a year
Lennox WHHP065T45MD240S****4.05$225 a year
Ariston ARIHPWH-65-T4.05$225 a year

Computed from electricity at 18.34¢/kWh, the EIA average for US in June 2026. A kilowatt-hour is 3412 BTU. This is a rate times a rating, not a prediction of your bill.

By brand

Rheem (173) · A. O. Smith (144) · State (81) · American (79) · Ruud (73) · Reliance Water Heaters (71) · Lochinvar (65) · Richmond (58) · Friedrich (49) · Midea (49) · GSW Water Heaters (33) · Rinnai (25) · Noritz (24) · Bradford White (19) · GE Profile (18) · John Wood (17) · Takagi (16) · LG (14) · Vaughn Thermal (13) · Bosch (12) · Giant (12) · Navien (9) · Vesta (9) · Ariston (8) · Elios (8) · Kiturami (8) · Laars (8) · Sammler (8) · Solahart (8) · AET (7) · Eco-Logical (6) · GREENoneTEC (6) · HTP (6) · Heliodyne (6) · Jetglas (6) · Kepler (6) · SANCO2 (6) · U.S. Craftmaster (6) · Universal Solar Products (5) · American Standard Water Heaters (4)

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Source: ENERGY STAR certified product data, published by the U.S. EPA and used with attribution. This is a register of certified models, not of every model on the market. ENERGY STAR is a registered mark of the U.S. EPA; this site is not affiliated with or endorsed by EPA or DOE.