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Natural Gas / Propane (LP) Fuel, Furnaces

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.
Displaying 49-72 of 192 results
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  • Amana AMVM961005DX

    100,000 BTU Furnace, 96% Efficiency, Modulating Burner, 2,000 CFM Variable Speed Blower, Upflow / Horizontal Flow Application

    $2,227.99 Free Shipping
    (0 Reviews)

  • Amana AMVM961155DX

    115,000 BTU Furnace, 95% Efficiency, Modulating Burner, 2,000 CFM Variable Speed Blower, Upflow / Horizontal Flow Application

    $2,409.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GDD80A054A3XE

    54,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,200 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 558.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GDD80A072B4XE

    72,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,600 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 587.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GDD80A090B4XE

    90,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,600 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 621.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GDD80A108C5XE

    108,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 2,000 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 631.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GDD80A126D5XE

    126,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 2,000 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 667.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A045A3XE

    45,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 502.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A054A3XE

    54,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 468.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A072B4XE

    72,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,600 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 576.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A072C5XE

    72,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 2,000 CFM Fixed Speed PSC Blower, Upflow/Horizontal Flow Application

    $ 584.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A090B4XE

    90,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 1,600 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 594.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A090C5XE

    90,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 2,000 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 640.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A108C5XE

    108,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 2,000 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 645.99 Free Shipping
    (0 Reviews)

  • Comfort-Aire GUH80A126D5XE

    126,000 BTU Furnace, 80% Efficiency, 1-Stage Burner, 2,000 CFM Multi Speed Blower, Upflow/Horizontal Flow Application

    $ 689.99 Free Shipping
    (0 Reviews)

  • Goodman GCH950453BX

    46,000 BTU Furnace, 95% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Down/Horizontal Flow Application

    popular
    $ 775.99 Free Shipping
    (7 Reviews)

  • Goodman GCH950703BX

    69,000 BTU Furnace, 95% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Down/Horizontal Flow Application

    popular
    $ 787.99 Free Shipping
    (7 Reviews)

  • Goodman GCH950704CX

    69,000 BTU Furnace, 95% Efficiency, 2-Stage Burner, 1,600 CFM Multi-Speed Blower, Down/Horizontal Flow Application

    $ 863.99 Free Shipping
    (7 Reviews)

  • Goodman GCH950904CX

    92,000 BTU Furnace, 95% Efficiency, 2-Stage Burner, 1,600 CFM Multi-Speed Blower, Down/Horizontal Flow Application

    popular
    $ 908.99 Free Shipping
    (7 Reviews)

  • Goodman GCH950905DX

    92,000 BTU Furnace, 95% Efficiency, 2-Stage Burner, 2,000 CFM Multi-Speed Blower, Down/Horizontal Flow Application

    $ 952.99 Free Shipping
    (7 Reviews)

  • Goodman GCSS960402BN

    40,000 BTU Furnace, 96% Efficiency, 1-Stage Burner, 800 CFM Single-Speed Blower, Downflow/Horizontal Flow Application

    $ 866.99 Free Shipping
    (0 Reviews)

  • Goodman GCSS960603BN

    60,000 BTU Furnace, 96% Efficiency, 1-Stage Burner, 1200 CFM Single-Speed Blower, Downflow/Horizontal Flow Application

    popular
    $ 899.99 Free Shipping
    (0 Reviews)

  • Goodman GCSS960804CN

    80,000 BTU Furnace, 96% Efficiency, 1-Stage Burner, 1600 CFM Single-Speed Blower, Downflow/Horizontal Flow Application

    popular
    $1,028.99 Free Shipping
    (0 Reviews)

  • Goodman GCSS961005CN

    100,000 BTU Furnace, 96% Efficiency, 1-Stage Burner, 2000 CFM Single-Speed Blower, Downflow/Horizontal Flow Application

    popular
    $1,160.99 Free Shipping
    (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.