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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 49-72 of 130 results
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  • Goodman GCVC960804CN

    80,000 BTU Furnace, 96% Efficiency, 2-Stage Burner, 1,600 CFM Variable Speed Blower, Downflow/Horizontal Flow Application

    $1,343.99 Free Shipping

    Or as low as /mo

    (2 Reviews)
  • Goodman GCVC961005CN

    100,000 BTU Furnace, 96% Efficiency, 2-Stage Burner, 2,000 CFM Variable Speed Blower, Downflow/Horizontal Flow Application

    $1,378.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Goodman GCVC961205DN

    120,000 BTU Furnace, 96% Efficiency, 2-Stage Burner, 2,000 CFM Variable Speed Blower, Downflow/Horizontal Flow Application

    $1,483.99 Free Shipping

    Or as low as /mo

    (2 Reviews)
  • Goodman GCVM960805DX

    80,000 BTU Furnace, 96% Efficiency, Modulating Burner, 2000 CFM Variable Speed Blower, Horizontal / Downflow Application

    $1,667.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Goodman GCVM970603BN

    60,000 BTU Furnace, 97% Efficiency, Modulating Burner, 1,200 CFM Variable Speed Blower, Downflow / Horizontal Flow Application

    $1,457.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Goodman GCVM970803BN

    80,000 BTU Furnace, 97% Efficiency, Modulating Burner, 1,200 CFM Variable Speed Blower, Downflow / Horizontal Flow Application

    $1,532.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Goodman GCVM970804CN

    80,000 BTU Furnace, 97% Efficiency, Modulating Burner, 1,600 CFM Variable Speed Blower, Downflow / Horizontal Flow Application

    $1,544.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Goodman GCVM971005CN

    100,000 BTU Furnace, 97% Efficiency, Modulating Burner, 2,000 CFM Variable Speed Blower, Downflow / Horizontal Application

    $1,621.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Goodman GDH80403AN

    40,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 535.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDH80403AX

    Low NOx Emission 40,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 1,200 CFM Multi-Speed Blower, Dedicated Downflow Application

    $ 544.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDH80603AN

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

    $ 562.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDH80603AX

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

    $ 554.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDH80804BN

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

    $ 589.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDH80804BX

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

    $ 617.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDH81005CN

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

    $ 690.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDH81005CX

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

    $ 692.99 Free Shipping

    Or as low as /mo

    (11 Reviews)
  • Goodman GDS80403AN

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

    $ 485.99 Free Shipping

    Or as low as /mo

    (22 Reviews)
  • Goodman GDS80403AX

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

    $ 494.99 Free Shipping

    Or as low as /mo

    (22 Reviews)
  • Goodman GDS80603AN

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

    $ 519.99 Free Shipping

    Or as low as /mo

    (22 Reviews)
  • Goodman GDS80603AX

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

    $ 542.99 Free Shipping

    Or as low as /mo

    (22 Reviews)
  • Goodman GDS80804BN

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

    $ 591.99 Free Shipping

    Or as low as /mo

    (22 Reviews)
  • Goodman GDS80804BX

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

    $ 590.99 Free Shipping

    Or as low as /mo

    (22 Reviews)
  • Goodman GDS81005CN

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

    $ 650.99 Free Shipping

    Or as low as /mo

    (22 Reviews)
  • Goodman GDS81005CX

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

    $ 657.99 Free Shipping

    Or as low as /mo

    (22 Reviews)