Rheem Gas Tank Water Heaters

Rheem offers a huge collection of highly efficient, gas-powered tank water heaters for every size home, Browse our full collection today.

Rheem Electric Tank Water Heaters

Electric water heaters are a highly efficient way to heat your water’s home, and Rheem offers a full suite of options for every size family.

Rheem Tankless Gas Water Heaters

Our whole-home tankless water heaters, available in natural gas, propane and electric models, are great for homes with busy families, homes with luxury …

Rheem Tankless Gas Water Heaters
Rheem Tankless Electric Water Heaters

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Find the Perfect Tankless Water Heater for Your Home

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Rheem Performance 27 kW 5.27 GPM 240-Volt Self-Modulating Electric Tankless Water Heater

Rheem Water Heater

  • Know Your Water Temperature:
    The map on the left shows the average ground water temperatures across the U.S. Different regions experience different water temperatures, which can affect how efficiently a tankless water heater performs.
  • Choose the Right Model:
    Based on your region’s inlet water temperature, select a model that provides enough hot water for your household:

    • Higher Power Models (e.g., 36kW) are ideal for colder climates where the water entering your home is cooler.
    • Lower Power Models (e.g., 18kW) work well in warmer regions where water heating requires less energy.
  • How Much Hot Water Do You Need?
    The chart helps estimate how many fixtures (like faucets and showers) can run simultaneously based on the model you choose and the temperature of the water coming into your home.
  • Efficient Heating, No Matter Where You Live:
    Whether you live in a warm southern state or a cooler northern area, choosing the right water heater ensures you have consistent, energy-efficient hot water whenever you need it.

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