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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 121-144 of 230 results
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  • Comfort-Aire GUH95A038B4XE

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

    $ 796.99 Free Shipping
    In Stock

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH95A038B4XF

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

    $ 817.99 Free Shipping
    Not In Stock

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH95A054B4XF

    54,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 1,600 CFM Multi-Speed PSC, Upflow/Horizontal Flow Application

    $ 837.99 Free Shipping
    Not In Stock

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH95A090C5XF

    90,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 2,000 CFM Multi-Speed PSC, Upflow/Horizontal Flow Application

    $1,019.99 Free Shipping
    Not In Stock

    Or as low as /mo

    (0 Reviews)
  • Comfort-Aire GUH95A108D5XF

    108,000 BTU Furnace, 95% Efficiency, 1-Stage Burner, 2,000 CFM Multi-Speed PSC, Upflow/Horizontal Flow Application

    $1,026.99 Free Shipping
    In Stock

    Or as low as /mo

    (0 Reviews)
  • Direct Comfort DC-GCSS960402BN

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

    $ 795.00 Free Shipping
    In Stock

    Or as low as /mo

    (10 Reviews)
  • Direct Comfort DC-GCSS960603BN

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

    $ 824.00 Free Shipping
    In Stock

    Or as low as /mo

    (10 Reviews)
  • Direct Comfort DC-GCSS960804CN

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

    $ 926.00 Free Shipping
    In Stock

    Or as low as /mo

    (10 Reviews)
  • Direct Comfort DC-GCSS961005CN

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

    $1,048.00 Free Shipping
    In Stock

    Or as low as /mo

    (10 Reviews)
  • Direct Comfort DC-GCSS961205DN

    120,000 BTU Furnace, 96% Efficiency, 1-Stage Burner, 2000 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application

    $1,145.00 Free Shipping
    In Stock

    Or as low as /mo

    (10 Reviews)
  • Direct Comfort DC-GCVC960403BN

    40,000 BTU Furnace, 96% Efficiency, 2-Stage Burner, 1,200 CFM Variable Speed Blower, Downflow/Horizontal Flow Application

    $1,266.00 Free Shipping
    In Stock

    Or as low as /mo

    (2 Reviews)
  • Direct Comfort DC-GCVC960603BN

    60,000 BTU Furnace, 96% Efficiency, 2-Stage Burner, 1,200 CFM Variable Speed Blower, Downflow/Horizontal Flow Application

    $1,314.00 Free Shipping
    Not In Stock

    Or as low as /mo

    (2 Reviews)
  • Direct Comfort DC-GCVC960804CN

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

    $1,529.00 Free Shipping
    In Stock

    Or as low as /mo

    (2 Reviews)
  • Direct Comfort DC-GCVC961005CN

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

    $1,605.00 Free Shipping
    Not In Stock

    Or as low as /mo

    (0 Reviews)
  • Direct Comfort DC-GCVC961205DN

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

    $1,674.00 Free Shipping
    Not In Stock

    Or as low as /mo

    (2 Reviews)
  • Direct Comfort DC-GDH80403AN

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

    $ 607.00 Free Shipping
    In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDH80403AX

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

    $ 607.00 Free Shipping
    In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDH80603AN

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

    $ 583.00 Free Shipping
    In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDH80603AX

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

    $ 563.00 Free Shipping
    Not In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDH80804BN

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

    $ 625.00 Free Shipping
    In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDH80804BX

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

    $ 642.00 Free Shipping
    Not In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDH81005CN

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

    $ 702.00 Free Shipping
    In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDH81005CX

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

    $ 708.00 Free Shipping
    In Stock

    Or as low as /mo

    (14 Reviews)
  • Direct Comfort DC-GDS80403AN

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

    $ 503.00 Free Shipping
    In Stock

    Or as low as /mo

    (22 Reviews)