(800)865-5931 Monday to Friday 7:00 AM - 7:00 PM Central
0
Free Shipping See Details
|
No Sales Tax See Details

Starting at $462.99, Overstock Furnace Special!

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 49-72 of 113 results
Results per Page:
Sort by:
  • Goodman GDH80603AX

    Lonox Emission 60,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 596.99 Free Shipping
    (9 Reviews)
  • Goodman GDH80804BN

    80,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,600 CFM Multi-Speed Blower, Dedicated Downflow Application

    popular
    $ 612.99 Free Shipping
    (9 Reviews)
  • Goodman GDH80804BX

    Lonox Emission 80,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,600 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 647.99 Free Shipping
    (9 Reviews)
  • Goodman GDH81005CN

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

    $ 687.99 Free Shipping
    (9 Reviews)
  • Goodman GDH81005CX

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

    $ 725.99 Free Shipping
    (9 Reviews)
  • Goodman GDS80403AN

    40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1,200 CFM Multi-Speed Blower, Downflow Application

    popular
    $ 472.99 Free Shipping
    (14 Reviews)
  • Goodman GDS80403AX

    Lonox Emission 40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1,200 CFM Multi-Speed Blower, Downflow Application

    $ 539.99 Free Shipping
    (14 Reviews)
  • Goodman GDS80603AN

    60,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1,200 CFM Multi-Speed Blower, Downflow Application

    popular
    $ 497.99 Free Shipping
    (14 Reviews)
  • Goodman GDS80603AX

    Lonox Emission 60,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1,200 CFM Multi-Speed Blower, Downflow Application

    $ 560.99 Free Shipping
    (14 Reviews)
  • Goodman GDS80804BN

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

    popular
    $ 615.99 Free Shipping
    (14 Reviews)
  • Goodman GDS80804BX

    Lonox Emission 80,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1,600 CFM Multi-Speed Blower, Downflow Application

    $ 630.99 Free Shipping
    (14 Reviews)
  • Goodman GDS81005CN

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

    $ 674.99 Free Shipping
    (14 Reviews)
  • 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 GME80603BN

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

    $ 735.99 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

    $ 735.99 Free Shipping
    (0 Reviews)
  • Goodman GME80805CN

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

    $ 808.99 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

    $ 808.99 Free Shipping
    (0 Reviews)
  • Goodman GME80805DX

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

    $ 854.99 Free Shipping
    (0 Reviews)
  • Goodman GME81005CN

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

    $ 862.99 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

    $1,039.99 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)

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.