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Low Profile, Top Air Outlet, Natural Gas / LP

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.
GO
This calculator is for estimating capacity only, and does not give exact equipment capacities for your home.
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  • Williams 0743511

    7,400 BTU Direct-Vent Wall Furnace, 79% Efficiency, Liquid Propane, Top Air Outlet, No Electricity Required

    $ 717.99 Free Shipping
    (1 Review)

  • Williams 0743512

    7,400 BTU Direct-Vent Wall Furnace, 79% Efficiency, Natural Gas, Top Air Outlet, No Electricity Required

    $ 773.99 Free Shipping
    (0 Reviews)

  • Williams 1403822

    14,000 BTU Direct-Vent Wall Furnace, 76% Efficiency, Natural Gas/LP, Top Air Outlet, No Electricity Required

    popular
    $ 653.99 Free Shipping
    (1 Review)

  • Williams 1773511

    17,700 BTU Direct-Vent Wall Furnace, 82% Efficiency, Liquid Propane, Top Air Outlet

    $1,246.99 Free Shipping
    (1 Review)

  • Williams 1773512

    17,700 BTU Direct-Vent Wall Furnace, 82% Efficiency, Natural Gas, Top Air Outlet

    popular
    $1,246.99 Free Shipping
    (0 Reviews)

  • Williams 2203622

    22,000 BTU Direct-Vent Wall Furnace, 75% Efficiency, Natural Gas/LP, Top Air Outlet, No Electricity Required

    $ 715.99 Free Shipping
    (1 Review)

  • Williams 2903511

    29,000 BTU Direct-Vent Wall Furnace, 82% Efficiency, Liquid Propane, Top Air Outlet

    $1,825.99 Free Shipping
    (1 Review)

  • Williams 2903512

    29,000 BTU Direct-Vent Wall Furnace, 82% Efficiency, Natural Gas, Top Air Outlet

    $1,798.99 Free Shipping
    (0 Reviews)

  • Williams 3003622

    30,000 BTU Direct-Vent Wall Furnace, 73% Efficiency, Natural Gas, Top Air Outlet, No Electricity Required

    popular
    $ 703.99 Free Shipping
    (2 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.