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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.

Square Footage

GO
This calculator is for estimating capacity only, and does not give exact equipment capacities for your home.
Displaying 97-120 of 172 results
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  • Goodman GDS81005CX

    Lonox Emission 100,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 2,000 CFM Multi-Speed Blower, Downflow Application

    $ 689.99 Free Shipping
    (14 Reviews)
  • Goodman GKS90704CX

    Lonox Emission 69,000 BTU Furnace, 92.1% Efficiency, Single-Stage Burner, 1,600 CFM Multi-Speed Blower, Upflow Application

    popular
    $ 740.99 Free Shipping
    (24 Reviews)
  • Goodman GME80603BN

    60,000 BTU Furnace, 80% Efficiency, 2 Stage Burner, 1,200 CFM X13 Motor, Upflow/Horizontal Flow Application

    $ 853.99 Free Shipping
    (0 Reviews)
  • Goodman GME80603BX

    Lonox Emission 60,000 BTU Furnace, 80% Efficiency, 2 Stage Burner, 1,200 CFM X13 Motor, Upflow/Horizontal Flow Application

    $ 808.99 Free Shipping
    (0 Reviews)
  • Goodman GME80805CN

    80,000 BTU Furnace, 80% Efficiency, 2 Stage Burner, 2,000 CFM X13 Motor, Upflow/Horizontal Flow Application

    $ 811.99 Free Shipping
    (0 Reviews)
  • Goodman GME80805CX

    Lonox Emission 80,000 BTU Furnace, 80% Efficiency, 2 Stage Burner, 2,000 CFM X13 Motor, Upflow/Horizontal Flow Application

    $ 873.99 Free Shipping
    (0 Reviews)
  • Goodman GME81005CN

    100,000 BTU Furnace, 80% Efficiency, 2 Stage Burner, 2,000 CFM X13 Motor, Upflow/Horizontal Flow Application

    $ 894.99 Free Shipping
    (0 Reviews)
  • Goodman GME81005CX

    Lonox Emission 100,000 BTU Furnace, 80% Efficiency, 2 Stage Burner, 2,000 CFM X13 Motor, Upflow/Horizontal Flow Application

    $ 913.99 Free Shipping
    (0 Reviews)
  • Goodman GMEC960402BN

    40,000 BTU Furnace, 96% Efficiency, 2 Stage Burner, 800 CFM, Multi-Speed Upflow/Horizontal Flow Application

    $ 975.99 Free Shipping
    (0 Reviews)
  • Goodman GMEC960603BN

    60,000 BTU Furnace, 96% Efficiency, 2 Stage Burner, 1200 CFM, Multi-Speed Upflow/Horizontal Flow Application

    $1,016.99 Free Shipping
    (0 Reviews)
  • Goodman GMEC960803BN

    80,000 BTU Furnace, 96% Efficiency, 2 Stage Burner, 1200 CFM, Multi-Speed Upflow/Horizontal Flow Application

    $1,175.99 Free Shipping
    (0 Reviews)
  • Goodman GMEC961004CN

    100,000 BTU Furnace, 96% Efficiency, 2 Stage Burner, 1600 CFM, Multi-Speed Upflow/Horizontal Flow Application

    $1,255.99 Free Shipping
    (0 Reviews)
  • Goodman GMEC961205DN

    120,000 BTU Furnace, 96% Efficiency, 2 Stage Burner, 2000 CFM, Multi-Speed Upflow/Horizontal Flow Application

    $1,325.99 Free Shipping
    (0 Reviews)
  • Goodman GMH80403AN

    40,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 515.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80403AX

    Lonox Emission 40,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 560.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80603AN

    60,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    popular
    $ 526.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80603AX

    Lonox Emission 60,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 596.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80604BN

    60,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,600 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 542.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80604BX

    Lonox Emission 60,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,600 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 606.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80803BX

    Lonox Emission 80,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 676.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80804BX

    Lonox Emission 80,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,600 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 660.99 Free Shipping
    (21 Reviews)
  • Goodman GMH80805CX

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

    $ 675.99 Free Shipping
    (21 Reviews)
  • Goodman GMH81005CX

    Lonox Emission 100,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 2,000 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 725.99 Free Shipping
    (21 Reviews)
  • Goodman GMH81205DN

    120,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 2,000 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 746.99 Free Shipping
    (21 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.