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Liquid Propane (LP) Whole-House Tankless Water Heaters

These are water heaters for domestic water, meaning for heating your home's drinking, washing and bathing water. Tankless water heaters, also known as on-demand or continuous flow water heaters, only heat the water when needed, which is beneficial. When water flow is detected the water heater turns on, and when the demand for hot water ceases the unit shuts down to conserve energy. This is much more energy efficient than the traditional tank-style water heater which keeps all of the water in the tank hot at all times. Other benefits of tankless water heaters are that the hot water supply is endless so you'll never run out of hot water, and they take up much less space than a tank-style water heater. There is an alternative use for these tankless heaters as well, which is to heat your home when combined with a hydronic air handler. Click here to select the correct size tankless water heater for your home.
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  • Rinnai R53e-LP

    Exterior, 5.3 GPM, Liquid Propane, 84% Efficiency Tankless Water Heater

    $ 705.99
    (0 Reviews)

  • Rinnai R98e-LP

    Exterior, 9.8 GPM, Liquid Propane, 83% Efficiency Tankless Water Heater

    $1,110.99
    (0 Reviews)

  • Rinnai RL75eP

    Exterior, 7.5 GPM, Liquid Propane, 82% Efficiency Tankless Water Heater

    $ 951.99
    (0 Reviews)

  • Rinnai RL75iP

    Interior, 7.5 GPM, Liquid Propane, 82% Efficiency Tankless Water Heater

    $ 944.99
    (0 Reviews)

  • Rinnai RL94eP

    Exterior, 9.4 GPM, Liquid Propane, 83% Efficiency Tankless Water Heater

    $1,143.99
    (0 Reviews)

  • Rinnai RL94iP

    Interior, 9.4 GPM, Liquid Propane, 83% Efficiency Tankless Water Heater

    $1,143.99
    (0 Reviews)

  • Rinnai RU80eP

    Exterior, 8.0 GPM, Liquid Propane, Tankless Water Heater

    $1,160.99 Free Shipping
    (0 Reviews)

  • Rinnai RU80iP

    Interior, 8.0 GPM, Liquid Propane, Tankless Water Heater

    $1,184.99 Free Shipping
    (0 Reviews)

  • Rinnai RU98eP

    Exterior, 9.8 GPM, Liquid Propane, Tankless Water Heater

    $1,293.99 Free Shipping
    (0 Reviews)

  • Rinnai RU98iP

    Interior, 9.8 GPM, Liquid Propane, Tankless Water Heater

    popular
    $1,293.99 Free Shipping
    (0 Reviews)

  • Rinnai V53eP

    Exterior, 5.3 GPM, Liquid Propane, 82% Efficiency Tankless Water Heater

    popular
    $ 590.99
    (0 Reviews)

  • Rinnai V65eP

    Exterior, 6.6 GPM, Liquid Propane, 82% Efficiency Tankless Water Heater

    $ 633.99
    (0 Reviews)

  • Rinnai V65iP

    Interior, 6.6 GPM, Liquid Propane, 82% Efficiency Tankless Water Heater

    popular
    $ 691.99
    (0 Reviews)

  • Rinnai V75eP

    Exterior, 7.5 GPM, Liquid Propane, 82% Efficiency Tankless Water Heater

    $ 866.99
    (0 Reviews)

  • Rinnai V75iP

    Interior, 7.5 GPM, Liquid Propane, 82% Efficiency Tankless Water Heater

    $ 866.99
    (0 Reviews)

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.