Water Heater Reviews

Welcome to WaterHeaterReviews.net, the #1 buying guide for tankless, gas, electric, indoor and and outdoor water heaters. We have researched every model available online to make it as easy as possible to find the right water heater for your home, recreational vehicle, cabin, swimming pool, business or any other need for a hot water heater.

Best Water Heaters for 2018

If you are looking for the best water heaters in all categories, please use our table of contents.

Natural Gas Tankless Water Heaters

Name/Image Learn MoreBrandRatingPower SourceUse TypeCapacityType
Rinnai RUC98iN Ultra Series Tankless Water Heater Review

Rinnai RUC98iN Ultra Series Tankless Water Heater Review

view pricefull review Rinnai5 Star Average Rating Natural GasIndoor9.8 GPMTankless
Takagi T-H3-DV-N Tankless Water Heater Review

Takagi T-H3-DV-N Tankless Water Heater Review

view pricefull review Takagi4 Star Average Rating Natural GasIndoor10 GPMTankless
Rheem 9.5 GPM Tankless Natural Gas Water Heater Review

Rheem 9.5 GPM Tankless Natural Gas Water Heater Review

view pricefull review Rheem4.5 Star Average Rating Natural GasIndoor9.5 GPMTankless
Rheem 8.4 GPM Low NOx Tankless Water Heater Review

Rheem 8.4 GPM Low NOx Tankless Water Heater Review

view pricefull review Rheem4 Star Average Rating Natural GasIndoor8.4 GPMTankless

If you need to provide hot water for an entire house with a single unit, you will need to look at a natural gas tankless water heater. If you live in the northern part of the united states and Canada, you will likely need a natural gas heater since your incoming water temperatures are lower. For more information, read our guide on natural gas tankless water heater reviews.

Electric Tankless Water Heater Reviews

Name/Image Learn MoreBrandRatingPower SourceUse TypeCapacityType
BOSCH Tronic 6000 C Electric Tankless Water Heater Review

BOSCH Tronic 6000 C Electric Tankless Water Heater Review

view pricefull review BOSCH4 Star Average Rating ElectricIndoor2.3 GPMTankless
Stiebel Eltron Tempra Plus Tankless Electric Water Heater Review

Stiebel Eltron Tempra Plus Tankless Electric Water Heater Review

view pricefull review Stiebel Eltron4 Star Average Rating ElectricIndoor2.0 GPMTankless
SioGreen IR260 Electric Hot Tankless Water Heater Review

SioGreen IR260 Electric Hot Tankless Water Heater Review

view pricefull review SioGreen4.5 Star Average Rating ElectricIndoor1.5 GPMTankless
Titan SCR2 N-120 Electric Tankless Water Heater Review

Titan SCR2 N-120 Electric Tankless Water Heater Review

view pricefull review Titan3 Star Average Rating ElectricIndoor2.0 GPMTankless
EcoSmart ECO Electric Tankless Water Heater Review

EcoSmart ECO Electric Tankless Water Heater Review

view pricefull review EcoSmart3.5 Star Average Rating ElectricIndoor3.5 GPMTankless

If you live in the Southern United States with incoming water temperatures of 67F or higher, then an electrical tankless water heater might be the right choice for you. At a much lower cost and boasting over 90% efficiency, electric tankless are an innovative way to save money on hot water. For more information, read our guide on electric tankless water heater reviews.

Outdoor Tankless Water Heaters

Name/Image Learn MoreBrandRatingPower SourceUse TypeCapacityType
Rinnai RU90eN Ultra Series Outdoor Water Heater Review

Rinnai RU90eN Ultra Series Outdoor Water Heater Review

view pricefull review Rinnai5 Star Average Rating Natural GasOurdoor9.0 GPMTankless
Takagi T-D2-OS-NG Outdoor Tankless Water Heater Review

Takagi T-D2-OS-NG Outdoor Tankless Water Heater Review

view pricefull review Takagi4 Star Average Rating Natural GasOurdoor10 GPMTankless
Rheem RTGH-95XLN Prestige Tankless Water Heater Review

Rheem RTGH-95XLN Prestige Tankless Water Heater Review

view pricefull review Rheem4 Star Average Rating Natural GasOutdoor9.5 GPMTankless
Rinnai RL94eN Outdoor Tankless Water Heater Review

Rinnai RL94eN Outdoor Tankless Water Heater Review

view pricefull review Rinnai4.5 Star Average Rating Natural GasOutdoor9.4 GPMTankless
Rheem RTG-84XLN Outdoor Tankless Water Heater Review

Rheem RTG-84XLN Outdoor Tankless Water Heater Review

view pricefull review Rheem4 Star Average Rating Natural GasOutdoor8.4 GPMTankless

If you are looking to save space or don’t want the extra expense of venting, you can get a high quality outdoor tankless water heater powered by natural gas. You don’t have to compromise just because the unit is on the outside, you can achieve up to 96% efficiency and have thermal ratings graded for -30C, so your water heater can withstand the outdoors. While slightly more expensive, the cost can cover itself without the need to create a venting solution.