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Furnaces

ACiQ 96% 80K BTU Gas Furnace Two Stage Variable Speed Multi-Position 21"W

SKU: G96VTN0802120
Product ID: 089743
Original price $0.00 - Original price $0.00
Original price $0.00
$2,488.00
$2,488.00 - $2,488.00
Current price $2,488.00

Product Details ACiQ 96% 80K BTU Gas Furnace Two Stage Variable Speed Multi-Position 21"W G96VTN0802120 The ACiQ G96VTN0802120A is a top-performin...

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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
Original price $0.00
$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 100,000 BTU 96% Gas Furnace 9-Speed Two Stage 1600 CFM 21" Upflow R32

SKU: AQ-GR9T961004CN
Product ID: 089523
Original price $0.00 - Original price $0.00
Original price $0.00
$3,090.00
$3,090.00 - $3,090.00
Current price $3,090.00

Product Details ACiQ 100,000 BTU 96% Gas Furnace 9-Speed Two Stage 21" Upflow/Horizontal R32 AQ-GR9T961004CN The ACiQ AQ-GR9T961004CN high-efficie...

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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 100K BTU 92% Gas Furnace 9-Speed 21"W 1600 CFM Upflow/Horizontal R32

SKU: AQ-GR9S921004CN
Product ID: 089548
Original price $0.00 - Original price $0.00
Original price $0.00
$1,933.00
$1,933.00 - $1,933.00
Current price $1,933.00

Product Details ACiQ 100K BTU 92% Gas Furnace 9-Speed 21"W 1600 CFM Upflow/Horizontal R32 AQ-GR9S921004CN The ACiQ AQ-GR9S921004CN gas furnace of...

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ACiQ 80,000 BTU 92% Gas Furnace 9-Speed 21"W 1600 CFM Upflow/Horizontal R32

SKU: AQ-GR9S920804CN
Product ID: 089550
Original price $0.00 - Original price $0.00
Original price $0.00
$1,778.00
$1,778.00 - $1,778.00
Current price $1,778.00

Product Details ACiQ 80,000 BTU 92% Gas Furnace 9-Speed 21"W 1600 CFM Upflow/Horizontal R32 AQ-GR9S920804CN The ACiQ AQ-GR9S920804CN 80,000 BTU G...

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ACiQ 60,000 BTU 96% AFUE Gas Furnace 9-Speed 1-Stage Upflow/Horizontal R32

SKU: AQ-GR9S960603BN
Product ID: 089539
Original price $0.00 - Original price $0.00
Original price $0.00
$1,702.00
$1,702.00 - $1,702.00
Current price $1,702.00

Product Details ACiQ 60,000 BTU 96% AFUE Gas Furnace 9-Speed 1-Stage Upflow/Horizontal R32 AQ-GR9S960603BN ACiQ AQ-GR9S960603BN Gas Furnace – 60,0...

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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
Original price $0.00
$1,572.00
$1,572.00 - $1,572.00
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 96% AFUE 80,000 BTU Gas Furnace Two Stage Multi-Positional 17.5" Width

SKU: G96CTN0801714
Product ID: 089739
Original price $0.00 - Original price $0.00
Original price $0.00
$2,735.00
$2,735.00 - $2,735.00
Current price $2,735.00

Product Details ACiQ 96% AFUE 80,000 BTU Gas Furnace Two Stage Multi-Positional 17.5" Width G96CTN0801714 The ACiQ G96CTN0801714 two-stage gas fur...

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ACiQ 96% AFUE 80,000 BTU Gas Furnace Two Stage Multi-Positional 21" Width

SKU: G96CTN0802120
Product ID: 089738
Original price $0.00 - Original price $0.00
Original price $0.00
$2,813.00
$2,813.00 - $2,813.00
Current price $2,813.00

Product Details ACiQ 96% AFUE 80,000 BTU Gas Furnace Two Stage Multi-Positional 21" Width G96CTN0802120 The ACiQ G96CTN0802120 two-stage gas furna...

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ACiQ 96% AFUE 100,000 BTU Gas Furnace Two Stage Multi-Positional 21" Width

SKU: G96VTN1002120A
Product ID: 089742
Original price $0.00 - Original price $0.00
Original price $0.00
$2,477.00
$2,477.00 - $2,477.00
Current price $2,477.00

Product Details ACiQ 96% AFUE 100,000 BTU Gas Furnace Two Stage Multi-Positional 21" Width G96VTN1002120A The ACiQ G96VTN1002120A delivers powerfu...

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ACiQ 96% AFUE 120,000 BTU Gas Furnace Two Stage 24.5" Width Multi-Position

SKU: G96VTN1202422
Product ID: 089741
Original price $0.00 - Original price $0.00
Original price $0.00
$2,733.00
$2,733.00 - $2,733.00
Current price $2,733.00

Product Details ACiQ 96% AFUE 120,000 BTU Gas Furnace Two Stage 24.5" Width Multi-Position G96VTN1202422 The ACiQ G96VTN1202422 is a high-performa...

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ACiQ 96% 140,000 BTU Gas Furnace Multi-Positional 24.5" Width Single Stage

SKU: N96MSN1402422A
Product ID: 089749
Original price $0.00 - Original price $0.00
Original price $0.00
$2,625.00
$2,625.00 - $2,625.00
Current price $2,625.00

Product Details ACiQ 96% 140,000 BTU Gas Furnace Multi-Positional 24.5" Width Single Stage N96MSN1402422A The ACiQ N96MSN1402422A is a high-effici...

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ACiQ 96% AFUE 100,000 BTU Gas Furnace Single Stage 21" Width Multi-Position

SKU: N96MSN1002120A
Product ID: 089751
Original price $0.00 - Original price $0.00
Original price $0.00
$2,265.00
$2,265.00 - $2,265.00
Current price $2,265.00

Product Details ACiQ 96% AFUE 100,000 BTU Gas Furnace Single Stage 21" Width Multi-Position N96MSN1002120A The ACiQ N96MSN1002120A is a high-effic...

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ACiQ 96% 60,000 BTU Gas Furnace Single Stage Multi-Positional 14" Width

SKU: N96MSN0601412A
Product ID: 089755
Original price $0.00 - Original price $0.00
Original price $0.00
$2,091.00
$2,091.00 - $2,091.00
Current price $2,091.00

Product Details ACiQ 96% 60,000 BTU Gas Furnace Single Stage Multi-Positional 14" Width N96MSN0601412A The ACiQ N96MSN0601412A is a high-efficienc...

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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
Original price $0.00
$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
Original price $0.00
$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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ACiQ 80% AFUE 80K BTU Gas Furnace Low NOx 17.5"W Two-Stage Downflow/Horizontal

SKU: AQ-GD9T800804BX
Product ID: 92505
Original price $0.00 - Original price $0.00
Original price $0.00
$1,375.00
$1,375.00 - $1,375.00
Current price $1,375.00

Product Details ACiQ 80% AFUE 80,000 BTU Gas Furnace Low NOx 17.5"W Downflow/Horizontal AQ-GD9T800804BX The ACiQ AQ-GD9T800804BX is a high-effici...

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ACiQ 96% 40,000 BTU Gas Furnace Single Stage Multi-Positional 14" Width

SKU: N95ESN0401410A
Product ID: 90074
Original price $1,650.00 - Original price $1,650.00
Original price
$1,650.00
$1,650.00 - $1,650.00
Current price $1,650.00

Product Details ACiQ 96% 40,000 BTU Gas Furnace Single Stage Multi-Positional 14" Width N95ESN0401410A The ACiQ N95ESN0401410A is a high-efficienc...

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ACiQ 80% AFUE 132,000 BTU Gas Furnace Single Stage 24.5"W Multi-Positional

SKU: N80ESN1352420A
Product ID: 90073
Original price $1,585.00 - Original price $1,585.00
Original price
$1,585.00
$1,585.00 - $1,585.00
Current price $1,585.00

Product Details ACiQ 80% AFUE 132,000 BTU Gas Furnace Single Stage 24.5"W Multi-Positional N80ESN1352420A The ACiQ N80ESN1352420A is a cost-effect...

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ACiQ 96% 120,000 BTU Gas Furnace Two Stage 24.5" Width Multi-Positional

SKU: G96CTN1202422
Product ID: 90064
Original price $3,039.00 - Original price $3,039.00
Original price
$3,039.00
$3,039.00 - $3,039.00
Current price $3,039.00

Product Details ACiQ 96% 120,000 BTU Gas Furnace Two Stage 24.5" Width Multi-Positional G96CTN1202422 The ACiQ G96CTN1202422 is a high-efficiency,...

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ACiQ 88,000 BTU 80% Gas Furnace Variable Speed Two Stage Multi-Positional

SKU: G80CTL0902120
Product ID: 889175
Original price $0.00 - Original price $0.00
Original price $0.00
$2,100.00
$2,100.00 - $2,100.00
Current price $2,100.00

Product Details ACiQ 88,000 BTU 80% Gas Furnace Variable Speed Two Stage Multi-Positional G80CTL0902120  The ACiQ G80CTL0902120A is a high-quality...

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ACiQ 80% AFUE 88,000 BTU Gas Furnace Single Stage 24.5"W Multi-Positional

SKU: N80MSN0902420A
Product ID: 889146
Original price $0.00 - Original price $0.00
Original price $0.00
$1,428.00
$1,428.00 - $1,428.00
Current price $1,428.00

Product Details ACiQ 80% AFUE 88,000 BTU Gas Furnace Single Stage 24.5"W Multi-Positional N80MSN0902420A The ACiQ N80MSN0902420A is a cost-effecti...

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ACiQ 80% AFUE 110,000 BTU Gas Furnace Two Stage Multi-Positional 21" Width

SKU: G80CTL1102120
Product ID: 889154
Original price $0.00 - Original price $0.00
Original price $0.00
$2,174.00
$2,174.00 - $2,174.00
Current price $2,174.00

Product Details ACiQ 80% AFUE 110,000 BTU Gas Furnace Two Stage Multi-Positional 21" Width G80CTL1102120 The ACiQ G80CTL1102120 delivers high-perf...

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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