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53 products rated

Electric tankless water heaters compared (2026)

Point-of-use and whole-house electric units. Sorted by rating; stated heating power, voltage and maximum flow as given in each exact listing.

Rating

53 products

9.3/10
Rheem 18 kW Electric, 240V
4.4 GPM · 18 kW · 240 VRheem 18 kW Electric, 240V$422.92 on Sep 30, 2026, may have changed2,187 buyer reviews
8.3/10
Rheem RTEX-24, 24 kW 240V
5.9 GPM · 24 kW · 240 VRheem RTEX-24, 24 kW 240V$549 on Sep 30, 2026, may have changed893 buyer reviews
8.1/10
WINTEMP WN-36kW Electric, 240V
8.7 GPM · 36 kW · 240 VWINTEMP WN-36kW Electric, 240V$499.98 on Sep 30, 2026, may have changed203 buyer reviews
7.9/10
ThermoMate 14 kW Electric, 240V
3.4 GPM · 14 kW · 240 VThermoMate 14 kW Electric, 240V$249.99 on Sep 30, 2026, may have changedSpec-based rating
7.9/10
Stiebel Eltron Tempra 29 Plus
28.8 kW · 240 VStiebel Eltron Tempra 29 Plus$798.99 on Sep 30, 2026, may have changed451 buyer reviews
7.7/10
ORBEK 14 kW Electric, 240V
3.38 GPM · 14 kW · 240 VORBEK 14 kW Electric, 240V$189.99 on Sep 30, 2026, may have changedSpec-based rating
7.7/10
SIVUATEK 18 kW Electric, 240V
4.3 GPM · 18 kW · 240 VSIVUATEK 18 kW Electric, 240V$245.99 on Sep 30, 2026, may have changed266 buyer reviews
7.7/10
Westinghouse 14 kW Electric, 240V
14 kW · 240 VWestinghouse 14 kW Electric, 240V$319.99 on Sep 30, 2026, may have changedSpec-based rating
7.6/10
WINTEMP WM-36kW Plus Electric, 240V
8.7 GPM · 36 kW · 240 VWINTEMP WM-36kW Plus Electric, 240V$699.98 on Sep 30, 2026, may have changed60 buyer reviews
7.5/10
EcoSmart ECOS 12, 12 kW 240V
2.9 GPM · 12 kW · 240 VEcoSmart ECOS 12, 12 kW 240V$259.02 on Sep 30, 2026, may have changedSpec-based rating
7.5/10
EcoSmart ECOS 18, 18 kW 240V
18 kW · 240 VEcoSmart ECOS 18, 18 kW 240VSee current price10 buyer reviews
7.5/10
MIZUDO 36 kW Electric, 240V
8.7 GPM · 36 kW · 240 VMIZUDO 36 kW Electric, 240V$560.99 on Sep 30, 2026, may have changed4 buyer reviews
7.5/10
Westinghouse 11 kW Electric, 240V
11 kW · 240 VWestinghouse 11 kW Electric, 240V$259.99 on Sep 30, 2026, may have changedSpec-based rating
7.4/10
APUS 27 kW Electric, 240V
6.5 GPM · 27 kW · 240 VAPUS 27 kW Electric, 240VSee current price120 buyer reviews
7.4/10
EcoSmart ECOS 27, 27 kW 240V
27 kW · 240 VEcoSmart ECOS 27, 27 kW 240VSee current price14 buyer reviews
7.4/10
Stiebel Eltron Tempra 15 Trend
14.4 kW · 240 VStiebel Eltron Tempra 15 Trend$489.99 on Sep 30, 2026, may have changedSpec-based rating
7.3/10
WINTEMP WM-27kW Plus Electric, 240V
6.5 GPM · 27 kW · 240 VWINTEMP WM-27kW Plus Electric, 240V$439.98 on Sep 30, 2026, may have changed60 buyer reviews
7.2/10
CAMPLUX 27 kW Electric, 240V
27 kW · 240 VCAMPLUX 27 kW Electric, 240V$302.62 on Sep 30, 2026, may have changed141 buyer reviews
7.2/10
Rheem 11 kW Multi Fixture, 240V
2.68 GPM · 11 kW · 240 VRheem 11 kW Multi Fixture, 240V$255 on Sep 30, 2026, may have changedSpec-based rating
7.2/10
Rheem 8 kW Multi Fixture, 240V
1.95 GPM · 8 kW · 240 VRheem 8 kW Multi Fixture, 240VSee current priceSpec-based rating
7.2/10
Stiebel Eltron Tempra 24 Trend
24 kW · 240 VStiebel Eltron Tempra 24 Trend$514.23 on Sep 30, 2026, may have changed93 buyer reviews
7.2/10
WINTEMP WN-18kW Electric, 240V
18 kW · 240 VWINTEMP WN-18kW Electric, 240V$279.98 on Sep 30, 2026, may have changed203 buyer reviews
7.0/10
xwdzswgs 3,000 W Under-Sink, 110V
110 Vxwdzswgs 3,000 W Under-Sink, 110V$59.98 on Sep 30, 2026, may have changedSpec-based rating
7.0/10
Rheem 3.5 kW Point-of-Use, 120V
3.5 kW · 120 VRheem 3.5 kW Point-of-Use, 120V$148.95 on Sep 30, 2026, may have changedSpec-based rating
7.0/10
Stiebel Eltron Tempra 20 Trend
19.2 kW · 240 VStiebel Eltron Tempra 20 Trend$544.43 on Sep 30, 2026, may have changed103 buyer reviews
7.0/10
Stiebel Eltron Tempra 29 Trend
28.8 kW · 240 VStiebel Eltron Tempra 29 Trend$639.99 on Sep 30, 2026, may have changed98 buyer reviews
6.9/10
SIVUATEK 14 kW Electric, 240V
14 kW · 240 VSIVUATEK 14 kW Electric, 240V$209.99 on Sep 30, 2026, may have changedSpec-based rating
6.9/10
Stiebel Eltron Tempra 36 Trend
36 kW · 240 VStiebel Eltron Tempra 36 Trend$749 on Sep 30, 2026, may have changed50 buyer reviews
6.9/10
VEVOR 36 kW Electric, 240V
36 kW · 240 VVEVOR 36 kW Electric, 240V$318.88 on Sep 30, 2026, may have changed4 buyer reviews
6.8/10
Stiebel Eltron DHX 12-2 Trend, 12 kW
12 kW · 240 VStiebel Eltron DHX 12-2 Trend, 12 kW$266.14 on Sep 30, 2026, may have changedSpec-based rating
6.8/10
Stiebel Eltron DHX 8-2 Trend, 7.2 kW
7.2 kW · 240 VStiebel Eltron DHX 8-2 Trend, 7.2 kW$265 on Sep 30, 2026, may have changedSpec-based rating
6.8/10
Vancepic 18 kW Electric, 240V
18 kW · 240 VVancepic 18 kW Electric, 240V$329 on Sep 30, 2026, may have changed19 buyer reviews
6.7/10
Rheem RTEX-13, 240V
3.17 GPM · 240 VRheem RTEX-13, 240VSee current priceSpec-based rating
6.7/10
HNK 3,500 W Electric, 110V
110 VHNK 3,500 W Electric, 110V$139.98 on Sep 30, 2026, may have changedSpec-based rating
6.6/10
Bosch Tronic 6100, 27 kW
27 kWBosch Tronic 6100, 27 kW$636.60 on Sep 30, 2026, may have changedSpec-based rating
6.5/10
Bosch Tronic 4000, 10.5 kW
10.5 kWBosch Tronic 4000, 10.5 kW$229.59 on Sep 30, 2026, may have changedSpec-based rating
6.5/10
Bosch Tronic 4000, 6.5 kW
6.5 kWBosch Tronic 4000, 6.5 kW$247.99 on Sep 30, 2026, may have changedSpec-based rating
6.5/10
Bosch Tronic 4000, 8.5 kW
8.5 kWBosch Tronic 4000, 8.5 kWSee current priceSpec-based rating
6.5/10
Bosch Tronic 6100, 18 kW
18 kWBosch Tronic 6100, 18 kW$629 on Sep 30, 2026, may have changedSpec-based rating
6.3/10
Garvee 27 kW Electric, 240V
27 kW · 240 VGarvee 27 kW Electric, 240V$192.99 on Sep 30, 2026, may have changed4 buyer reviews
6.2/10
ThermoMate 27 kW Electric
6.6 GPM · 27 kW · 240 VThermoMate 27 kW Electric$446.49 on Sep 30, 2026, may have changed36 buyer reviews
6.0/10
EcoSmart POU 4T, 3.5 kW 120V
3.5 kW · 120 VEcoSmart POU 4T, 3.5 kW 120V$169.69 on Sep 30, 2026, may have changedSpec-based rating
6.0/10
Rheem RTEX-06T, 6.5 kW 240V
6.5 kW · 240 VRheem RTEX-06T, 6.5 kW 240V$189 on Sep 30, 2026, may have changedSpec-based rating
5.9/10
MRNIU 36 kW Electric, 240V
36 kW · 240 VMRNIU 36 kW Electric, 240V$324.90 on Sep 30, 2026, may have changed5 buyer reviews
5.9/10
EcoSmart ECO 8, 8 kW
8 kWEcoSmart ECO 8, 8 kW$219 on Sep 30, 2026, may have changedSpec-based rating
5.9/10
EcoSmart POU 6, 6 kW
6 kWEcoSmart POU 6, 6 kW$203.32 on Sep 30, 2026, may have changedSpec-based rating
5.9/10
Rheem RETEX-36 Performance, 36 kW
6 GPM · 36 kWRheem RETEX-36 Performance, 36 kW$752.99 on Sep 30, 2026, may have changedSpec-based rating
5.8/10
Rheem RTEX-27, 240V
240 VRheem RTEX-27, 240V$689.99 on Sep 30, 2026, may have changedSpec-based rating
5.6/10
Eemax EEM24036, 36 kW
36 kWEemax EEM24036, 36 kW$747.67 on Sep 30, 2026, may have changedSpec-based rating
5.6/10
Eemax HA036240, 36 kW 240V
36 kW · 240 VEemax HA036240, 36 kW 240V$763.05 on Sep 30, 2026, may have changed34 buyer reviews
5.4/10
Westinghouse 18 kW Electric, 240V
18 kW · 240 VWestinghouse 18 kW Electric, 240V$407.99 on Sep 30, 2026, may have changed37 buyer reviews
4.8/10
Westinghouse 24 kW Electric, 240V
5.55 GPM · 24 kW · 240 VWestinghouse 24 kW Electric, 240V$499.99 on Sep 30, 2026, may have changed21 buyer reviews
4.5/10
Rheem RTEX-36, 36 kW 240V
36 kW · 240 VRheem RTEX-36, 36 kW 240V$799.99 on Sep 30, 2026, may have changed22 buyer reviews

Product images: Amazon listings

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