10 Best Tankless Water Heater Consumer Reports 2022

Tankless water heaters have been gaining in popularity for a number of reasons. They are more energy-efficient than traditional water heaters, and they take up less space. But what are the best tankless water heaters on the market? We took a look at some of the most popular models to find out. Keep reading to learn more!

Top 10 Best Tankless Water Heater Consumer Reports

1. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

2. Ecosmart ECO Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, White

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EcoSmart ECO 27 Electric...
  • Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored...
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be...
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when...
  • EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3x40 AMP Double Pole Breaker, 27-kilowatt tankless...
  • Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499...
  • Required Breaker Quantity: Three 40 Amp Double Pole
  • Recommended Electrical Panel: 200 Amps
  • NEVER run out of hot water with an ECOSMART tankless water heater.
  • Save up to 12 cubic feet of storage space.
  • Digital temperature control in 1-degree increments gives users complete control of hot water

3. Rheem 18kW 240V Tankless Electric Water Heater

Rheem 18kW 240V Tankless...
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
  • Simple installation – bottom 3/4 inch NPT water connections
  • Threaded for easy replacement, simple installation, digital temperature display

4. Tankless Water Heater Electric 240V, On-Demand Hot Water Heater Digital Display 5.5kW, Electric Instant Hot Water Heater, Overheating Protection, Black

Tankless Water Heater Electric...
  • 【INSTANT & SUFFICIENT HOT WATER】Applied with 5.5KW heating system, the electric water heater supplies...
  • 【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flow rate and temp setting in...
  • 【CONVENIENT USE】The tankless water heater comes with digital display & touch control panel so temp setting...
  • 【SAFE and DURABLE】Applied with multiple protection devices, every piece goes through strict tests to...
  • 【POINT of USE】The sleek tankless water heater is compact as an oatmeal box, making it possible to install...

5. Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater

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Ecosmart ECO 36 36kw 240V...
  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • Pipe Fittings:3/4 inch NPT
  • Required Breaker:4 x 40 A
  • 150 A

6. Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On-Demand Hot Water, Eco, White, 20.2

Stiebel Eltron Tankless Water...
  • CONTINUOUS FLOW – Advanced Flow Control patented technology invented by Stiebel Eltron, automatically...
  • SPACE & ENERGY SAVER – Its small, sleek white design saves space yet still provides endless hot water for...
  • EASY OPERATION – Electronic switch activates the hot water heater and it’s noise free while in use. Has a...
  • TEMPRA 24 PLUS – This specific model is 24kW, 240V, requires a min recommended electric service of 150 A,...
  • WARRANTIES INCLUDED – Stiebel Eltron’s top-rated electric tankless water heaters perform with the highest...

7. Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY

Rheem 240V Heating Chamber...
  • External adjustable digital thermostatic control with LED display (+/1 degree accuracy
  • Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
  • Simple installation – 1/2 NPT adapters included; side 1/2 inch Compression water connections
  • 99.8% energy efficient. External controls to adjust temperature in increments of 1°f. Water-Saver Shower Head...
  • Threaded for easy replacement, simple installation, digital temperature display 54 A. 13kW Model Flow Rate: up...
  • 54 A

8. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

Rheem RTEX-24 24kW 240V...
  • ON/OFF Dial Control with adjustable digital temperature display
  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
  • Bottom 3/4" NPT water connections
  • On demand, consistent and continuous hot water

9. MAREY GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater, Liquid, White

MAREY GA10LP Power 10L 3.1 GPM...
  • This unit is flow activate
  • Save up to 60% on electricity bills for water heating
  • Compact design saves space and is easy to install almost anywhere
  • No electrical connection is required so it's perfect alternative for those homes experiencing frequent power...
  • Unlimited hot water whenever is needed
  • Provide endless hot water on demand and only as needed
  • Allows water temperature to be controlled
  • Rustproof, no water loss due to leaks
  • Works easily with low levels of water pressure
  • 5 years warranty

10. Natural Gas Tankless Water Heater, Fogatti Indoor 7.5 GPM, 170000 BTU White Instant Hot Water Heater

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Natural Gas Tankless Water...
  • We recommend that all installations of units must be done in accordance with the local building and plumbing...
  • The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
  • 170,000 BTU high heating capacity and maximum 7.5 GPM. It is suitable for 3-4 outlet points, which can satisfy...
  • Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced...
  • Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of...
  • Fogatti provide free replacement within 30 days, and 5 years warranty on heat exchanger and 2 years warranty...

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