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Natural Gas Forced Air Furnaces

BTU Calculator

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This calculator is for estimating capacity only, and does not give exact equipment capacities for your space.

Displaying 1-14 of 14 results
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45,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
45,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1,200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Blueridge BG801UH045AE12
283
$91000
 
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checkmark iconIn Stock
40,000 BTU Furnace, 92% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
40,000 BTU Furnace, 92% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Goodman GR9S920403AN
New Item!
$1,52000
 
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checkmark iconIn Stock
40,000 BTU Furnace, 80% Efficiency, Two-Stage Burner, 1200 CFM, Multi-Speed Upflow/Horizontal Flow Application
40,000 BTU Furnace, 80% Efficiency, Two-Stage Burner, 1200 CFM, Multi-Speed Upflow/Horizontal Flow Application
Goodman GR9T800403AN
1
$1,26700
 
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checkmark iconIn Stock
40,000 BTU Furnace, 96% Efficiency, Two-Stage Burner, 1200 CFM, Multi-Speed Upflow/Horizontal Flow Application
40,000 BTU Furnace, 96% Efficiency, Two-Stage Burner, 1200 CFM, Multi-Speed Upflow/Horizontal Flow Application
Goodman GR9T960403AN
1
$1,80500
 
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checkmark iconIn Stock
40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
Goodman GD9S800403AN
New Item!
$1,14400
 
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checkmark iconIn Stock
Low NOx, 40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
Low NOx, 40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
Goodman GD9S800403AX
New Item!
$1,16000
 
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Out Of Stock
40,000 BTU Furnace, 96% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
40,000 BTU Furnace, 96% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
Goodman GD9S960403BN
New Item!
$1,78500
 
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checkmark iconIn Stock
Low NOx, 40,000 BTU Furnace, 80% Efficiency, Two-Stage Burner, 1200 CFM Multi-Speed, Downflow/Horizontal Flow Application
Low NOx, 40,000 BTU Furnace, 80% Efficiency, Two-Stage Burner, 1200 CFM Multi-Speed, Downflow/Horizontal Flow Application
Goodman GD9T800403AX
New Item!
$1,31600
 
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Out Of Stock
40,000 BTU Furnace, 96% Efficiency, Two-Stage Burner, 1200 CFM, Multi-Speed Downflow/Horizontal Flow Application
40,000 BTU Furnace, 96% Efficiency, Two-Stage Burner, 1200 CFM, Multi-Speed Downflow/Horizontal Flow Application
Goodman GD9T960403BN
1
$1,97200
 
Free Shipping
checkmark iconIn Stock
40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Goodman GR9S800403AN
New Item!
$1,10000
 
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checkmark iconIn Stock
Ultra Low NOx, 40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Ultra Low NOx, 40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Goodman GR9S800403AU
New Item!
$1,74000
 
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Out Of Stock
Low NOx, 40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Low NOx, 40,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Goodman GR9S800403AX
New Item!
$1,11000
 
Free Shipping
checkmark iconIn Stock
40,000 BTU Furnace, 96% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
40,000 BTU Furnace, 96% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Goodman GR9S960403AN
1
$1,68200
 
Free Shipping
checkmark iconIn Stock
Ultra Low NOx, 40,000 BTU Furnace, 96% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Ultra Low NOx, 40,000 BTU Furnace, 96% Efficiency, Single-Stage Burner, 1200 CFM Multi-Speed Blower, Upflow/Horizontal Flow Application
Goodman GR9S960403BU
New Item!
$2,44500
 
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Out Of Stock
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