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Furnaces

Goodman 80% 80K BTU Gas Furnace 17.5" Cabinet Two Stage Upflow/Horizontal

SKU: GR9T800803BN
Product ID: 100956
Original price $0.00 - Original price $0.00
Original price $0.00
$1,462.00
$1,462.00 - $1,462.00
Current price $1,462.00

Product Details Goodman 80% 80,000 BTU Gas Furnace Two Stage 17.5"W Upflow/Horizontal R32 GR9T800803BN The Goodman 80% AFUE R32 2-Stage Gas Furnac...

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Goodman 80% AFUE 80K BTU Gas Furnace 9-Speed Ultra-Low NOx 21"W Upflow/Horizontal

SKU: GR9S800805CU
Product ID: 101326
Original price $0.00 - Original price $0.00
Original price $0.00
$2,255.00
$2,255.00 - $2,255.00
Current price $2,255.00

Product Details Goodman 80% 80K BTU Gas Furnace Ultra-Low NOx 21" Width Upflow/Horizontal GR9S800805CU The Goodman GR9S800805CU Gas Furnace offers...

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Goodman 80% AFUE Gas Furnace 80,000 BTU 17.5"W Cabinet Downflow/Horizontal

SKU: GD9S800804BN
Product ID: 100973
Original price $0.00 - Original price $0.00
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$1,460.00
$1,460.00 - $1,460.00
Current price $1,460.00

Product Details Goodman R32 80% AFUE Gas Furnace 80000 BTU 17.5" Wide 1600 CFM Downflow GD9S800804BN The Goodman GD9S800804BN gas furnace delivers...

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Goodman 80% AFUE 80K BTU Furnace Variable Speed 21"W Ultra-Low NOx Upflow/Horizontal

SKU: GRVS800805CU
Product ID: 101502
Original price $0.00 - Original price $0.00
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$2,644.00
$2,644.00 - $2,644.00
Current price $2,644.00

Product Details Goodman 80% 80K BTU Gas Furnace Upflow/Horizontal Variable Speed Ultra-Low NOx GRVS800805CU The Goodman GRVS800805CU is a high-val...

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ACiQ 80% AFUE 66,000 BTU Gas Furnace Multi-Position 21" Width Single Stage

SKU: N80MSN0702116A
Product ID: 889164
Original price $0.00 - Original price $0.00
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$1,400.00
$1,400.00 - $1,400.00
Current price $1,400.00

Product Details ACiQ 80% AFUE 66,000 BTU Gas Furnace Multi-Position 21" Width Single Stage N80MSN0702116A The ACiQ N80MSN0702116A is an efficient ...

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ACiQ 60,000 BTU 80% Gas Furnace Two-Stage 9-Speed 14" Upflow/Horizontal R32

SKU: AQ-GR9T800603AN
Product ID: 089568
Original price $0.00 - Original price $0.00
Original price $0.00
$1,306.00
$1,306.00 - $1,306.00
Current price $1,306.00

Product Details ACiQ 60,000 BTU 80% Gas Furnace Two-Stage 9-Speed 14" Upflow/Horizontal R32 AQ-GR9T800603AN The ACiQ AQ-GR9T800603AN gas furnace d...

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ACiQ 120K BTU 80% Gas Furnace 9-Speed 24.5"W 2000 CFM Upflow/Horizontal R32

SKU: AQ-GR9S801205DN
Product ID: 089570
Original price $0.00 - Original price $0.00
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$1,572.00
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Current price $1,572.00

Product Details ACiQ 120K BTU 80% Gas Furnace 9-Speed 24.5"W 2000 CFM Upflow/Horizontal R32 AQ-GR9S801205DN The ACiQ AQ-GR9S801205DN gas furnace o...

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ACiQ 80% 88,000 BTU Gas Furnace Single Stage Multi-Positional 17.5" Width

SKU: N80MSN0901714A
Product ID: 089962
Original price $0.00 - Original price $0.00
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$1,475.00
$1,475.00 - $1,475.00
Current price $1,475.00

Product Details ACiQ 80% 88,000 BTU Gas Furnace Single Stage Multi-Positional 17.5" Width N80MSN0901714A The ACiQ N80MSN0901714A is a budget-frien...

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ACiQ 80% 44,000 BTU Gas Furnace Single Stage Multi-Positional 14" Width

SKU: N80MSN0451412A
Product ID: 089966
Original price $0.00 - Original price $0.00
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$1,350.00
$1,350.00 - $1,350.00
Current price $1,350.00

Product Details ACiQ 80% 44,000 BTU Gas Furnace Single Stage Multi-Positional 14" Width N80MSN0451412A The ACiQ N80MSN0451412A is an affordable, r...

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Goodman 80% AFUE 60K BTU Furnace 9-Speed Low NOx 14"W Single Stage Upflow/Horizontal

SKU: GR9S800603AX
Product ID: 100934
Original price $0.00 - Original price $0.00
Original price $0.00
$1,237.00
$1,237.00 - $1,237.00
Current price $1,237.00

Product Details Goodman R32 80% AFUE Gas Furnace 60K BTU 14" Wide Low NOx Upflow/Horizontal The Goodman GR9S800603AX Low NOx gas furnace is built ...

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Goodman 80% 80K BTU Gas Furnace 9-Speed Low NOx 17.5"W Single Stage Upflow/Horizontal

SKU: GR9S800803BX
Product ID: 100940
Original price $0.00 - Original price $0.00
Original price $0.00
$1,301.00
$1,301.00 - $1,301.00
Current price $1,301.00

Product Details Goodman R32 80% AFUE Gas Furnace 80K BTU 17.5"W Low NOx Upflow/Horizontal The Goodman 80% AFUE R32 Gas Furnace delivers 80,000 BTU...

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Goodman 80% 80K BTU Gas Furnace 9-Speed Low NOx 17.5"W Single Stage Upflow/Horizontal

SKU: GR9S800804BX
Product ID: 100942
Original price $0.00 - Original price $0.00
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$1,368.00
$1,368.00 - $1,368.00
Current price $1,368.00

Product Details Goodman 80% 80K BTU Gas Furnace Low NOx 17.5" Width Upflow/Horizontal R32 GR9S800804BX The Goodman GR9S800804BX Low NOx Gas Furnac...

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Goodman 80% 80K BTU Gas Furnace 9-Speed 21"W Single Stage Upflow/Horizontal

SKU: GR9S800805CN
Product ID: 100945
Original price $0.00 - Original price $0.00
Original price $0.00
$1,414.00
$1,414.00 - $1,414.00
Current price $1,414.00

Product Details Goodman 80% 80,000 BTU Gas Furnace Single Stage 21" Width Upflow/Horizontal GR9S800805CN The Goodman GR9S800805CN Gas Furnace offe...

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Goodman 80% 60000 BTU Gas Furnace Single Stage 17.5" Wide Upflow/Horizontal

SKU: GR9S800604BN
Product ID: 090221
Original price $0.00 - Original price $0.00
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$1,255.00
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Current price $1,255.00

Product Details Goodman 60,000 BTU 80% Gas Furnace 9-Speed 1-Stage 3/4 HP Upflow/Horizontal R32 GR9S800604BN The Goodman GR9S800604BN delivers rel...

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Goodman 80% 100K BTU Furnace 9-Speed 21"W Single Stage Upflow/Horizontal

SKU: GR9S801005CN
Product ID: 100947
Original price $0.00 - Original price $0.00
Original price $0.00
$1,507.00
$1,507.00 - $1,507.00
Current price $1,507.00

Product Details Goodman 80% 100,000 BTU Gas Furnace 9 Speed 21" Width Upflow/Horizontal R32 GR9S801005CN The Goodman GR9S801005CN gas furnace is a...

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Goodman 80% 40K BTU Gas Furnace 9-Speed 14"W Single Stage Upflow/Horizontal

SKU: GR9S800403AN
Product ID: 100931
Original price $0.00 - Original price $0.00
Original price $0.00
$1,143.00
$1,143.00 - $1,143.00
Current price $1,143.00

Product Details Goodman 40,000 BTU 80% AFUE Gas Furnace 9 Speed Single Stage Upflow R32 GR9S800403AN The Goodman GR9S800403AN gas furnace delivers ...

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Goodman 80% 60K BTU Gas Furnace 9-Speed 14"W Single Stage Upflow/Horizontal

SKU: GR9S800603AN
Product ID: 100933
Original price $0.00 - Original price $0.00
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$1,221.00
$1,221.00 - $1,221.00
Current price $1,221.00

Product Details Goodman 60,000 BTU 80% Gas Furnace 9 Speed Single Stage 14"W Upflow R32 GR9S800603AN The Goodman GR9S800603AN gas furnace delivers...

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Goodman 80% 80K BTU Gas Furnace 17.5" Cabinet Two Stage Upflow/Horizontal

SKU: GR9T800804BN
Product ID: 100958
Original price $0.00 - Original price $0.00
Original price $0.00
$1,517.00
$1,517.00 - $1,517.00
Current price $1,517.00

Product Details Goodman 80% 80K BTU Gas Furnace 17.5" Wide Two Stage Upflow/Horizontal GR9T800804BN The Goodman GR9T800804BN is an 80,000 BTU, 80%...

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Goodman 80% 120K BTU Gas Furnace 9-Speed 24.5"W Two Stage Upflow/Horizontal

SKU: GR9T801205DN
Product ID: 100968
Original price $0.00 - Original price $0.00
Original price $0.00
$1,867.00
$1,867.00 - $1,867.00
Current price $1,867.00

Product Details Goodman 120K BTU 80% Gas Furnace Two-Stage 9-Speed 24.5" Upflow/Horizontal R32 GR9T801205DN The Goodman GR9T801205DN is a powerful...

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Goodman 80% AFUE 60K BTU Furnace 9-Speed Low NOx 17.5"W Two Stage Upflow/Horizontal

SKU: GR9T800603BX
Product ID: 100955
Original price $0.00 - Original price $0.00
Original price $0.00
$1,414.00
$1,414.00 - $1,414.00
Current price $1,414.00

Product Details Goodman 80% 60,000 BTU Gas Furnace Low NOx 17.5"W Upflow/Horizontal GR9T800603BX The Goodman GR9T800603BX is a two-stage, energy-e...

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Goodman 80% AFUE 80K BTU Furnace 9-Speed Low NOx 17.5"W Two Stage Upflow/Horizontal

SKU: GR9T800804BX
Product ID: 100959
Original price $0.00 - Original price $0.00
Original price $0.00
$1,517.00
$1,517.00 - $1,517.00
Current price $1,517.00

Product Details Goodman 80% 80K BTU Gas Furnace Low NOx 17.5" Width R32 Upflow/Horizontal GR9T800804BX The Goodman GR9T800804BX Gas Furnace delive...

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Goodman 80% AFUE Gas Furnace 60K BTU 14" Width Cabinet Downflow/Horizontal

SKU: GD9S800603AN
Product ID: 100971
Original price $0.00 - Original price $0.00
Original price $0.00
$1,260.00
$1,260.00 - $1,260.00
Current price $1,260.00

Product Details Goodman R32 80% AFUE Gas Furnace 60K BTU 14"W 1200 CFM Downflow/Horizontal GD9S800603AN The Goodman GD9S800603AN gas furnace deliv...

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Goodman 80% AFUE 60K BTU Gas Furnace Low NOx 14" Width Downflow/Horizontal

SKU: GD9S800603AX
Product ID: 100972
Original price $0.00 - Original price $0.00
Original price $0.00
$1,272.00
$1,272.00 - $1,272.00
Current price $1,272.00

Product Details Goodman R32 80% AFUE Gas Furnace 60K BTU 14"W Low NOx Downflow/Horizontal GD9S800603AX The Goodman GD9S800603AX is a reliable, hig...

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Goodman 80% AFUE 60K BTU Gas Furnace Low NOx 14"W Two-Stage Downflow/Horizontal

SKU: GD9T800603AX
Product ID: 100979
Original price $0.00 - Original price $0.00
Original price $0.00
$1,436.00
$1,436.00 - $1,436.00
Current price $1,436.00

Product Details Goodman R32 80% AFUE Gas Furnace 60K BTU 14"W Two-Stage Low NOx Downflow GD9T800603AX The Goodman GD9T800603AX is a reliable 60,00...

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HVAC Store provides superior furnace solutions engineered for dependable, real-world performance. Whether you are selecting a system for a new build or upgrading a long-serving unit, our collection allows you to compare premium upflow, downflow, and multi-positional models side-by-side. Every residential furnace in our lineup is backed by transparent efficiency data, exceptional build quality, and a team dedicated to helping you find the tailored solution for your specific heating needs.

High-Efficiency Heating: From Standard to Cutting-Edge Designs

Our furnace collection features innovative gas designs that maximize fuel conversion, with AFUE ratings reaching the mid-90s for significant long-term energy savings. Options range from reliable single-stage models to cutting-edge two-stage and variable-speed systems that fine-tune heat output for consistent comfort and reduced utility costs. For most residential applications, a natural gas furnace remains the leading choice, offering a service life of 15 to 20 years when supported by professional maintenance. In regions without natural gas infrastructure, our propane and electric alternatives provide robust heating for homes of any size.

We offer residential furnaces sized for everything from compact utility closets to expansive multi-story homes, with BTU capacities ranging from 30,000 to 140,000 BTUs . These top-notch units are listed with precise cabinet widths to ensure a seamless match with your existing ductwork. Selecting a high-AFUE model supports a more sustainable home environment, especially when integrated with a properly matched air conditioner or heat pump for year-round climate control.

Choosing the Right Furnace for Your Space

  • Match Capacity to Your Floor Plan: System sizing is critical; our range of 30,000 to 140,000 BTU units ensures you can select a furnace that maintains stable temperatures without inefficient short-cycling .

  • Compare AFUE Ratings: A furnace's AFUE (Annual Fuel Utilization Efficiency) directly impacts your monthly investment; choosing a high-efficiency model provides peace of mind through lower operating costs.

  • Verify Fuel Availability: Select between natural gas, propane, or electric configurations based on local utility availability and your existing mechanical setup.

  • Prioritize Comfort Technology: Two-stage and modulating furnaces with variable-speed blowers deliver quieter operation and more even heat distribution compared to standard single-stage units.

  • Factor in Installation Requirements: When investing in a new system, ensure you coordinate with a licensed professional to account for ductwork adjustments and flue requirements to maintain your comprehensive warranty coverage.

Related Collections for Complete Heating and Cooling

FAQ

What should I consider when purchasing a furnace online?

Focus on your fuel type, the required BTU capacity for your square footage, and the airflow configuration—such as upflow or downflow. Matching these technical specs to your existing ductwork ensures an efficient installation and exceptional long-term performance.

How does the AFUE rating impact my energy usage?

The AFUE rating measures how effectively a furnace converts fuel into usable heat; for example, a 96% AFUE rating means only 4% of the energy is lost through exhaust. Upgrading to a high-efficiency furnace is a sustainable choice that significantly reduces fuel waste and monthly utility bills.

Are gas furnaces the best choice for every region?

Natural gas is often the most cost-effective fuel source for primary heating. However, for homes without gas lines, our propane and electric furnaces offer reliable and premium heating performance for any application.

What is the expected lifespan of a residential furnace?

With regular professional maintenance, a quality furnace typically provides trusted performance for 15 to 20 years. Routine filter changes and annual inspections are essential to preserving the system’s efficiency and ensuring your comprehensive warranty coverage remains active.

What is the advantage of a variable-speed gas furnace?

While single-stage units run at 100% capacity whenever they are active, cutting-edge variable-speed systems adjust their output to meet the exact heating demand of the home. This results in quieter operation, superior humidity control, and the highest potential for energy savings