The 10 Best Whole House Tankless Water Heater of December 2022

When it comes to keeping your home water minimum, a third of the households in the U.S. have no running water. That’s a lot of homes without a heat pump or central water heater. Fortunately, there are solutions that work for everyone else as well. Whether you live in an urbanized area with no convenient electrical outlet, or you’re looking to cut back on your carbon footprint, here is everything you need to know about a whole house tankless water heater. Read on for details and more information about this essential part of your home’s plumbing system.

1. It must be able to heat water at temperatures up to 200 degrees F (93 degrees C).

Top Best Whole House Tankless Water Heater Reviews

Preview Product
#1-Top Expert Choice
BLACK+DECKER 36kW 240...image
BLACK+DECKER 36kW 240 Volt 7.3GPM Tankless Electric Water Heater, Self-Modulating Multi-Application Unit for Whole House, Hot Water on Demand, Digital Temperature Display
9.8
GC Score
#2-Premium Choice
Tankless Water Heater...image
Tankless Water Heater Electric 18kW 240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display Easy Installation, for Residential Whole House Shower, 76A GRAY
9.7
GC Score
#3
Stiebel Eltron Tankless...image
Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2
9.6
GC Score
#4
Bosch Thermotechnology 7736505871,...image
Bosch Thermotechnology 7736505871, 9.5kW, Bosch US9-2R Tronic 3000 Electric Tankless Water Heater, 9.5 kW, 6.6" x 12.8" x 2.9", White
9.5
GC Score
#5
Electric Tankless Hot...image
Electric Tankless Hot Water Heater, 18KW 240V On Demand Instant Hot Water Heater with Digital Display Touch Panel, ℉ & ℃ Conversion, Easy Installation for Bathroom Shower Whole House, ETL Certified
9.4
GC Score
#6
Titan Tankless N-210...image
Titan Tankless N-210 Whole House Water Heater System
9.3
GC Score
#7
GE APPLIANCES Whole...image
GE APPLIANCES Whole House Tankless Water Heater |Electric with Digital Temperature Control Compact Design Easily Installs at Point of Use 27000 Watts 5.4 Gallons per Minute, Diamond Gray (GE27DNHPDG)
9.2
GC Score
#8
MAREY 4.2 GPM,...image
MAREY 4.2 GPM, 100,000 BTUs, Whole House solution, Digital Display, Outdoor Propane Gas Tankless Water Heater, Silver
9.1
GC Score
#9
Rheem RTEX-24 24kW...image
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
9
GC Score
#10
Rinnai RL94eN Non-Condensing...image
Rinnai RL94eN Non-Condensing Natural Gas Tankless Water Heater, Outdoor Installation, Up to 9.8 GPM
8.9
GC Score

FAQs

Can a tankless water heater be used for a whole house?

Yes, a tankless water heater can be used for a whole house. However, this is a bulky purchase that should be made aware of in order to save on space.

What is the most reliable tankless water heater?

The EcoSmart ECO 27 is a great tankless water heater for those looking for a competitive price and/or the added efficiency of 92128 BTUs. It has a two-year warranty and our editorial team has had no negative experiences with it.

What is one disadvantage of a whole house tankless water heater?

One disadvantage of a tankless water heater is that they may not be as reliable in cold weather. Additionally, they may not produce the same heat as traditional water heaters.

Does cold weather affect tankless water heater?

There is no definitive answer to this question as the type of tankless water heater and winter weather conditions will affect the size of the unit. However, it is important to size your water heater based upon the winter weather conditions in order to receive adequate hot water.

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