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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 RH180P

    91,300 BTU Hybrid Tank-Tankless Water Heater, Liquid Propane

    popular
    $1,557.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Rinnai RL75eP

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

    $ 939.99

    Or as low as /mo

    (1 Review)
  • Rinnai RL75iP

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

    $ 958.99

    Or as low as /mo

    (1 Review)
  • Rinnai RL94eP

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

    popular
    $1,142.99

    Or as low as /mo

    (1 Review)
  • Rinnai RL94iP

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

    $1,142.99

    Or as low as /mo

    (1 Review)
  • Rinnai RU80eP

    Exterior, 8.0 GPM, Liquid Propane, Tankless Water Heater

    $1,115.99 Free Shipping

    Or as low as /mo

    (5 Reviews)
  • Rinnai RU80iP

    Interior, 8.0 GPM, Liquid Propane, Tankless Water Heater

    $1,305.99 Free Shipping

    Or as low as /mo

    (5 Reviews)
  • Rinnai RU98eP

    Exterior, 9.8 GPM, Liquid Propane, Tankless Water Heater

    popular
    $1,368.99 Free Shipping

    Or as low as /mo

    (5 Reviews)
  • Rinnai RUC80iP

    Interior, 8.0 GPM, Propane, 0.96 Energy Factor Tankless Water Heater

    $1,054.99

    Or as low as /mo

    (5 Reviews)
  • Rinnai RUC98iP

    Interior, 9.8 GPM, Propane, 0.95 Energy Factor Tankless Water Heater

    $1,225.99

    Or as low as /mo

    (5 Reviews)
  • Rinnai RUCS65iP

    Interior, 6.5 GPM, Propane, 0.93 Energy Factor Tankless Water Heater

    $ 899.99

    Or as low as /mo

    (5 Reviews)
  • Rinnai RUCS75iP

    Interior, 7.5 GPM, Propane, 0.93 Energy Factor Tankless Water Heater

    $1,059.99

    Or as low as /mo

    (5 Reviews)
  • Rinnai RUR98eP

    Exterior, 9.8 GPM, Propane, 0.95 Energy Factor Tankless Water Heater

    $1,731.99

    Or as low as /mo

    (5 Reviews)
  • Rinnai RUR98iP

    Interior, 9.8 GPM, Propane, 0.95 Energy Factor Tankless Water Heater

    $1,668.99

    Or as low as /mo

    (5 Reviews)
  • Rinnai V53eP

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

    $ 548.99

    Or as low as /mo

    (0 Reviews)
  • Rinnai V65eP

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

    $ 645.99

    Or as low as /mo

    (0 Reviews)
  • Rinnai V65iP

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

    $ 687.99

    Or as low as /mo

    (0 Reviews)
  • Rinnai V75eP

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

    $ 829.99

    Or as low as /mo

    (0 Reviews)
  • Rinnai V75iP

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

    $ 836.99

    Or as low as /mo

    (0 Reviews)