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156 complete heaters, 70 service parts and kits

All tankless water heaters compared (2026), page 2 of 10

Reviews 25 to 48 of 226, still sorted by our rating. This page opens with the Westinghouse 120,000 BTU Propane Outdoor at 7.6/10.

Category
Rating

24 products

7.6/10
Westinghouse 120,000 BTU Propane Outdoor
5.1 GPM · 120,000 BTU/h · 120 VWestinghouse 120,000 BTU Propane Outdoor$799.99 on Sep 30, 2026, may have changed12 buyer reviews
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
Eastman 3/4" Expansion Tank Tee
Eastman 3/4" Expansion Tank Tee$39.98 on Sep 30, 2026, may have changedSpec-based rating
7.5/10
Eastman 60022 Expansion Tank, 2 gal
Eastman 60022 Expansion Tank, 2 gal$34.98 on Sep 30, 2026, may have changedSpec-based rating
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
Ranein 130,000 BTU Propane Outdoor
5.3 GPM · 130,000 BTU/hRanein 130,000 BTU Propane Outdoor$579 on Sep 30, 2026, may have changed710 buyer reviews
7.5/10
Rheem RTG 7.0 GPM Propane Indoor
7 GPM · 160,000 BTU/hRheem RTG 7.0 GPM Propane Indoor$785.13 on Sep 30, 2026, may have changedSpec-based rating
7.5/10
Rheem RTG 8.4 GPM Propane Outdoor
8.4 GPM · 180,000 BTU/hRheem RTG 8.4 GPM Propane Outdoor$953 on Sep 30, 2026, may have changedSpec-based rating
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
7.5/10
Westinghouse Natural Gas Outdoor
8.1 GPM · 180,000 BTU/h · 120 VWestinghouse Natural Gas Outdoor$799.96 on Sep 30, 2026, may have changedSpec-based rating
7.4/10
BHVALCON 3/4" Valve Kit with Gas Lines
BHVALCON 3/4" Valve Kit with Gas Lines$94.99 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
APUS 95,000 BTU Propane Indoor
4.42 GPM · 95,000 BTU/h · 120 VAPUS 95,000 BTU Propane Indoor$299.99 on Sep 30, 2026, may have changedSpec-based rating
7.4/10
Chromex Flush Kit, Concentrated Vinegar
Chromex Flush Kit, Concentrated Vinegar$144.99 on Sep 30, 2026, may have changedSpec-based rating
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
GASLAND BE158B Propane, 1.58 GPM
1.58 GPMGASLAND BE158B Propane, 1.58 GPM$169.99 on Sep 30, 2026, may have changedSpec-based rating
7.4/10
PROZRTED HBS24-12T Recirculating Pump
PROZRTED HBS24-12T Recirculating Pump$129.99 on Sep 30, 2026, may have changedSpec-based rating
7.4/10
Noritz NR98SVLP Indoor Propane
9.8 GPM · 199,900 BTU/hNoritz NR98SVLP Indoor Propane$1,590.70 on Sep 30, 2026, may have changedSpec-based rating
7.4/10
Ranein Condensing Natural Gas, 5.1 GPM
5.1 GPM · 120,000 BTU/h · 120 VRanein Condensing Natural Gas, 5.1 GPM$559 on Sep 30, 2026, may have changedSpec-based rating
7.4/10
Ranein Condensing Propane, 5.1 GPM
5.1 GPM · 120,000 BTU/h · 120 VRanein Condensing Propane, 5.1 GPM$559 on Sep 30, 2026, may have changedSpec-based rating
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
PEVEPEXE Expansion Tank, 2.1 gal
PEVEPEXE Expansion Tank, 2.1 gal$37.99 on Sep 30, 2026, may have changedSpec-based rating

Product images: Amazon listings

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