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100,000 BTU Gas Furnaces

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up to 35% off Furnaces

Select your 100,000 BTU gas furnace and save with wholesale prices and free shipping. We offer 100,000 BTU furnaces for sale from top brands like Goodman and AirQuest by Carrier. Choose the right efficiency, configuration, and blower speed to fit your home’s needs.

*Looking for a Propane Furnace? Don't forget to add-on the "Propane Conversion Kit" to your order.

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  1. 44,000 BTU 80% AFUE Two Stage AirQuest Gas Furnace - G8MTL0451412A
    110,000 BTU 80% AFUE Single Stage Multi-Positional AirQuest Gas Furnace
    Model: N80ESN1102120A
    Rating:
    99%
    Suggested Retail $1,965.00 Your Low Price Special Price $1,277.00
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  2. Goodman 120,000 BTU 80% AFUE Multi-Speed Single Stage Gas Furnace - GMES801205DN
    100,000 BTU 80% AFUE 9-Speed Single Stage Goodman Gas Furnace - Upflow/Horizontal
    Model: GM9S801005CN
    Rating:
    97%
    $1,281.00
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  3. Goodman 120,000 BTU 80% AFUE Multi-Speed Single Stage Gas Furnace - GMES801205DN
    100,000 BTU 80% AFUE 9-Speed Single Stage Goodman Gas Furnace Low NOx California Model- Upflow/Horizontal
    Model: GM9S801005CX
    $1,292.00
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  4. Goodman 100,000 BTU 80% AFUE Multi-Speed Single Stage Gas Furnace - GMES801005CN
    100,000 BTU 80% AFUE 9-Speed Single Stage Goodman Gas Furnace Low NOx California Model - Downflow/Horizontal
    Model: GC9S801005CX
    $1,332.00
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  5. 110,000 BTU 80% AFUE Single Stage Multi-Positional AirQuest Gas Furnace
    110,000 BTU 80% AFUE Single Stage Multi-Positional AirQuest Gas Furnace
    Model: N80ESN1102420A
    Rating:
    100%
    Suggested Retail $2,139.00 Your Low Price Special Price $1,349.00
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  6. 100,000 BTU 80% AFUE Multi-Speed Two Stage Goodman Gas Furnace - Upflow/Horizontal
    100,000 BTU 80% AFUE 9-Speed Two Stage Goodman Gas Furnace Low NOx California Model - Upflow/Horizontal
    Model: GM9C801005CX
    $1,365.00
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  7. 100,000 BTU 80% AFUE Multi-Speed Two Stage Goodman Gas Furnace - Upflow/Horizontal
    100,000 BTU 80% AFUE 9-Speed Two Stage Goodman Gas Furnace - Upflow/Horizontal
    Model: GM9C801004CN
    Rating:
    100%
    $1,375.00
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  8. Goodman 100,000 BTU 80% AFUE Multi-Speed Single Stage Gas Furnace - GMES801005CN
    100,000 BTU 80% AFUE 9-Speed Single Stage Goodman Gas Furnace - Downflow/Horizontal
    Model: GC9S801005CN
    Rating:
    100%
    $1,377.00
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  9. 100,000 BTU 80% AFUE Multi-Speed Two Stage Goodman Gas Furnace - Upflow/Horizontal
    100,000 BTU 80% AFUE 9-Speed Two Stage Goodman Gas Furnace - Upflow/Horizontal
    Model: GM9C801005CN
    $1,420.00
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  10. 100,000 BTU 92% AFUE Single Stage Multi-Positional AirQuest by Carrier Gas Furnace
    100,000 BTU 92% AFUE Single Stage Multi-Positional AirQuest Gas Furnace
    Model: R92ESN1002120A
    Rating:
    93%
    Suggested Retail $2,570.00 Your Low Price Special Price $1,670.00
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  11. 100,000 BTU 96% AFUE Single Stage Multi-Positional AirQuest Gas Furnace
    100,000 BTU 96% AFUE Single Stage Multi-Positional AirQuest Gas Furnace
    Model: N95ESN1002120A
    Rating:
    100%
    Suggested Retail $3,013.00 Your Low Price Special Price $1,799.00
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  12. 100,000 BTU 96% AFUE Two-Stage Multi-Positional AirQuest by Carrier Gas Furnace
    100,000 BTU 96% AFUE Two-Stage Multi-Positional AirQuest Gas Furnace
    Model: G96VTN1002120A
    Rating:
    97%
    Suggested Retail $3,151.00 Your Low Price Special Price $1,818.00
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  13. Goodman 80% AFUE 100,000 BTU Upflow Variable Speed Gas Furnace
    100,000 BTU 80% AFUE Variable Speed Goodman Gas Furnace - Upflow/Horizontal
    Model: GMVC81005CN
    Rating:
    100%
    $1,820.00
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  14. Goodman 80% AFUE 60,000 BTU Upflow Variable Speed Gas Furnace
    100,000 BTU 80% AFUE Variable Speed Goodman Gas Furnace Low NOx California Model - Upflow/Horizontal
    Model: GMVC81005CX
    $1,820.00
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  15. Goodman 80% AFUE 60,000 BTU Upflow Variable Speed Gas Furnace
    100,000 BTU 80% AFUE Variable Speed Goodman Gas Furnace - Upflow/Horizontal
    Model: GMVC801005CN
    $2,061.00
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  16. 110,000 BTU 80% AFUE Two Stage Multi-Positional AirQuest Gas Furnace
    110,000 BTU 80% AFUE Two Stage Multi-Positional AirQuest Gas Furnace
    Model: G80CTL1102120A
    Rating:
    93%
    Suggested Retail $3,210.00 Your Low Price Special Price $2,086.00
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  17. Goodman 96% AFUE 40,000 BTU Upflow 1 Stage Gas Furnace
    100,000 BTU 96% AFUE Single Stage Goodman Gas Furnace - Upflow/Horizontal
    Model: GM9S961005CN
    Rating:
    100%
    $2,088.00
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  18. Goodman 96% AFUE 100,000 BTU Upflow 1 Stage Gas Furnace
    100,000 BTU 96% AFUE Single Stage Goodman Gas Furnace - Downflow/Horizontal
    Model: GC9S961005CN
    $2,164.00
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  19. Goodman 96% AFUE 40,000 BTU Upflow 1 Stage Gas Furnace
    100,000 BTU 96% AFUE Single Stage Goodman Gas Furnace - Downflow/Horizontal
    Model: GCES961005CN
    $2,170.00
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  20. Goodman 96% AFUE 100,000 BTU Upflow 2 Stage Gas Furnace
    100,000 BTU 96% AFUE 2 Stage Goodman Gas Furnace - Upflow/Horizontal
    Model: GM9C961004CN
    Rating:
    100%
    $2,182.00
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  21. Goodman 96% AFUE 100,000 BTU Upflow 2 Stage Gas Furnace
    100,000 BTU 96% AFUE 2 Stage Goodman Gas Furnace - Upflow/Horizontal
    Model: GM9C961005CN
    Rating:
    97%
    $2,256.00
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  22. Thermo Pride 85% 70,000-106,250 BTU Highboy Oil Furnace - VHF-ABP
    Thermo Pride 85% 70,000-106,250 BTU Highboy Oil Furnace - Spirit VHF Series
    Model: VHF-ABP
    Rating:
    87%
    Suggested Retail $3,376.57 Your Low Price Special Price $2,885.96
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  23. Goodman 96% AFUE 100,000 BTU Upflow Variable Speed Gas Furnace 2000 CFM
    100,000 BTU 96% AFUE Variable Speed Goodman Gas Furnace - Upflow/Horizontal
    Model: GMVC961005CN
    Rating:
    100%
    $2,892.00
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  24. Goodman 96% AFUE 100,000 BTU Downflow Variable Speed Gas Furnace 2000 CFM
    100,000 BTU 96% AFUE Variable Speed Goodman Gas Furnace - Downflow/Horizontal
    Model: GCVC961005CN
    Rating:
    100%
    $2,969.00
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Items 1-24 of 28

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For an average three-bedroom home in a northern climate with seasonably cold winters, you need a minimum of a 100,000 BTU furnace. Square feet, the quality and depth of insulation, windows and ceiling height all affect BTU needs, so take all that into consideration when ordering.

All our 100,000 BTU gas furnaces have excellent AFUE ratings, which will save you substantially on energy costs. AFUE stands for Annual Fuel Utilization Efficiency, which compares a product’s performance against the amount of fuel it used to achieve that level of performance.

The 100,000 BTU furnaces in our stock range from 80% AFUE to 97% AFUE. When you consider a 100,000 BTU furnace, price is of course a consideration, but don’t forget fuel efficiency. You stand to save substantial amounts of money on gas bills over the years.

Installation space is also a consideration, because a furnace of this size needs a bit of space in which to operate. For this reason, we have units in three different orientations – upflow, downflow and horizontal flow. This way, you can adapt the furnace to the space, or to the ductwork already in place.

Cold-starting furnaces with their early-morning drafts are all but done away with, thanks to multi-speed blower motors that deliver heat at a rate appropriate for the temperature. A multi-speed blower motor has two, sometimes more, set speeds. A variable speed blower motor is more like a volume knob, with an infinite number of speeds.

Similarly, the gas burners can be regulated to provide the best levels of heat for the situation. Single stage burners employ an all-on or all-off approach, which can sometimes result in abrupt changes in room temperature. Two stage burners can run at full capacity or reduced capacity (usually about 60%). This produces more even heating. Modulating furnaces take the process a step further, incorporating even more precise settings.

Our selection of 100,000 BTU furnaces are capable of moving massive amounts of air, which increases the amount of square footage each unit can serve. Over 20 of our units are rated at 5 tons, meaning they can move 2,000 CFMs (cubic feet per minute).

For more BTU options, browse our full inventory of high-efficiency furnaces.

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