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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 25-48 of 143 results
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  • Amana AMH80604BX

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

    $ 678.99 Free Shipping

    Or as low as /mo

    (2 Reviews)
  • Amana AMH80804BX

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

    $ 730.99 Free Shipping

    Or as low as /mo

    (2 Reviews)
  • Amana AMH80805CX

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

    $ 733.99 Free Shipping

    Or as low as /mo

    (2 Reviews)
  • Amana AMSS920603BN

    60,000 BTU Furnace, 92% Efficiency, 1-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application

    $ 817.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Amana AMSS960402BN

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

    $ 960.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Amana AMVC80805CN

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

    $1,088.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Amana AMVC961205DN

    120,000/84,000 BTU Furnace, 96% Efficiency, 2-Stage Burner, 2,000 CFM Variable Speed Blower, Upflow/Horizontal Flow Application

    $1,828.99 Free Shipping

    Or as low as /mo

    (1 Review)
  • Amana AMVM971205DN

    120,000 BTU Furnace, 97% Efficiency, Modulating Burner, 2,000 CFM Variable Speed Blower, Upflow / Horizontal Flow Application

    $2,126.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD80A054A3XE

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

    $ 612.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD80A072B4XE

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

    $ 687.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD80A090B4XE

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

    $ 734.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD80A108C5XE

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

    $ 666.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD80A126D5XE

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

    $ 736.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD95A054B4XE

    54,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 1,600 CFM Fixed Speed PSC, Dedicated Downflow Application

    $ 975.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD95A054B4XF

    54,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 1,600 CFM Fixed Speed PSC, Dedicated Downflow Application

    $ 975.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD95A072C5XE

    72,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 2,000 CFM Fixed Speed PSC, Dedicated Downflow Application

    $1,074.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD95A090C5XE

    90,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 2,000 CFM Fixed Speed PSC, Dedicated Downflow Application

    $1,112.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GDD95A118D5XE

    118,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 2,000 CFM Fixed Speed PSC, Dedicated Downflow Application

    $1,227.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH80A054A3XE

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

    $ 545.99 Free Shipping

    Or as low as /mo

    (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

    $ 593.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH80A090C5XE

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

    $ 632.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH80A126D5XE

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

    $ 671.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH95A038B4XE

    38,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 1,600 CFM Fixed Speed PSC, Upflow/Horizontal Flow Application

    $ 839.99 Free Shipping

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH95A038N4XF

    38,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 1,600 CFM Fixed Speed PSC, Upflow/Horizontal Flow Application

    $ 839.99 Free Shipping

    Or as low as /mo

    (0 Reviews)