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Liquid Propane (LP) Whole-House Tankless Water Heaters

BTU CALCULATOR
BTU CALCULATOR

BTU stands for "British Thermal Unit" and measures the heating or cooling capacity of a furnace or air conditioning unit. Enter your homes square footage to see how many BTU's are required to adequately heat or cool it.

Enter the square footage of your home (or room) and press Go.

Square Footage

GO
This calculator is for estimating capacity only, and does not give exact equipment capacities for your home.
Displaying 1-14 of 14 results
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  • Rinnai R98e-LP

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

    $1,079.99
    (0 Reviews)
  • Rinnai RL75eP

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

    $ 916.99
    (0 Reviews)
  • Rinnai RL75iP

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

    $ 916.99
    (0 Reviews)
  • Rinnai RL94eP

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

    $1,114.99
    (0 Reviews)
  • Rinnai RL94iP

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

    $1,114.99
    (0 Reviews)
  • Rinnai RU80eP

    Exterior, 8.0 GPM, Liquid Propane, Tankless Water Heater

    $1,144.99 Free Shipping
    (0 Reviews)
  • Rinnai RU80iP

    Interior, 8.0 GPM, Liquid Propane, Tankless Water Heater

    $1,214.99 Free Shipping
    (0 Reviews)
  • Rinnai RU98eP

    Exterior, 9.8 GPM, Liquid Propane, Tankless Water Heater

    $1,252.99 Free Shipping
    (0 Reviews)
  • Rinnai RU98iP

    Interior, 9.8 GPM, Liquid Propane, Tankless Water Heater

    popular
    $1,252.99 Free Shipping
    (0 Reviews)
  • Rinnai V53eP

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

    popular
    $ 547.99
    (0 Reviews)
  • Rinnai V65eP

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

    $ 624.99
    (0 Reviews)
  • Rinnai V65iP

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

    popular
    $ 646.99
    (0 Reviews)
  • Rinnai V75eP

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

    $ 838.99
    (0 Reviews)
  • Rinnai V75iP

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

    $ 838.99
    (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.