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ACiQ N80MSN1102120A

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

SKU: N80MSN1102120A
Product ID: 89226
$0.00 - $0.00
$0.00
$1,441.00
$1,441.00 - $1,441.00
$1,441.00

Product Details ACiQ 80% 110,000 BTU Gas Furnace Single Stage Multi-Positional 21" Width N80MSN1102120A The ACiQ N80MSN1102120A is a reliable and ...

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ACiQ N80MSN0902120A

ACiQ 80% 88,000 BTU Gas Furnace Single Stage Multi-Positional 21" Width

SKU: N80MSN0902120A
Product ID: 889160
$0.00 - $0.00
$0.00
$1,450.00
$1,450.00 - $1,450.00
$1,450.00

Product Details ACiQ 80% 88,000 BTU Gas Furnace Single Stage Multi-Positional 21" Width N80MSN0902120A The ACiQ N80MSN0902120A is a dependable and...

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ACiQ N80MSN0902116A

ACiQ 80% 88,000 BTU Gas Furnace Multi-Positional 21" Width Single Stage

SKU: N80MSN0902116A
Product ID: 889161
$0.00 - $0.00
$0.00
$1,425.00
$1,425.00 - $1,425.00
$1,425.00

Product Details ACiQ 80% 88,000 BTU Gas Furnace Multi-Positional 21" Width Single Stage N80MSN0902116A The ACiQ N80MSN0902116A is a reliable and c...

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ACiQ AQ-GRVT801005CN

ACiQ 100,000 BTU 80% Gas Furnace Variable Speed Two Stage Upflow/Horizontal

SKU: AQ-GRVT801005CN
Product ID: 089554
$0.00 - $0.00
$0.00
$2,370.00
$2,370.00 - $2,370.00
$2,370.00

Product Details ACiQ 100,000 BTU 80% Gas Furnace Variable Speed Two Stage Upflow/Horizontal AQ-GRVT801005CN The ACiQ AQ-GRVT801005CN is a top-tier...

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ACiQ AQ-GRVT800805DN

ACiQ 80K BTU 80% Gas Furnace Variable Speed Two Stage 2000 CFM 24.5" Upflow

SKU: AQ-GRVT800805DN
Product ID: 089555
$0.00 - $0.00
$0.00
$2,250.00
$2,250.00 - $2,250.00
$2,250.00

Product Details ACiQ 80,000 BTU 80% Gas Furnace Variable Speed Two Stage 2000 CFM 24.5" Upflow/Horizontal AQ-GRVT800805DN The ACiQ AQ-GRVT800805DN...

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ACiQ AQ-GRVT800805CN

ACiQ 80000 BTU 80% Gas Furnace Variable Speed Two Stage 2000 CFM 21" Upflow

SKU: AQ-GRVT800805CN
Product ID: 089556
$0.00 - $0.00
$0.00
$2,229.00
$2,229.00 - $2,229.00
$2,229.00

Product Details ACiQ 80,000 BTU 80% Gas Furnace Variable Speed Two Stage 2000 CFM 21" Upflow/Horizontal AQ-GRVT800805CN The ACiQ AQ-GRVT800805CN i...

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ACiQ AQ-GRVT800804CN

ACiQ 80000 BTU 80% Gas Furnace Variable Speed Two Stage 1600 CFM 21" Upflow

SKU: AQ-GRVT800804CN
Product ID: 089557
$0.00 - $0.00
$0.00
$2,170.00
$2,170.00 - $2,170.00
$2,170.00

Product Details ACiQ 80,000 BTU 80% Gas Furnace Variable Speed Two Stage 1600 CFM 21" Upflow/Horizontal AQ-GRVT800804CN The ACiQ AQ-GRVT800804CN i...

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ACiQ AQ-GRVT800604BN

ACiQ 60K BTU 80% Gas Furnace Variable Speed Two Stage 1600 CFM 17.5" Upflow

SKU: AQ-GRVT800604BN
Product ID: 089558
$0.00 - $0.00
$0.00
$2,066.00
$2,066.00 - $2,066.00
$2,066.00

Product Details ACiQ 60K BTU 80% Gas Furnace Variable Speed Two Stage 1600 CFM 17.5" Upflow/Horizontal AQ-GRVT800604BN The ACiQ AQ-GRVT800604BN is...

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ACiQ AQ-GRVT800603BN

ACiQ 60K BTU 80% Gas Furnace Variable Speed Two Stage 1200 CFM 17.5" Upflow

SKU: AQ-GRVT800603BN
Product ID: 089559
$0.00 - $0.00
$0.00
$1,886.00
$1,886.00 - $1,886.00
$1,886.00

Product Details ACiQ 60K BTU 80% Gas Furnace Variable Speed Two Stage 1200 CFM 17.5" Upflow/Horizontal AQ-GRVT800603BN The ACiQ AQ-GRVT800603BN is...

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ACiQ AQ-GR9T801205DN

ACiQ 120K BTU 80% Gas Furnace Two-Stage 9-Speed 24.5" Upflow/Horizontal R32

SKU: AQ-GR9T801205DN
Product ID: 089560
$0.00 - $0.00
$0.00
$2,400.00
$2,400.00 - $2,400.00
$2,400.00

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

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ACiQ AQ-GR9T801005CN

ACiQ 100K BTU 80% Gas Furnace Two-Stage 2000 CFM 21" Upflow/Horizontal R32

SKU: AQ-GR9T801005CN
Product ID: 089561
$0.00 - $0.00
$0.00
$2,200.00
$2,200.00 - $2,200.00
$2,200.00

Product Details ACiQ 100K BTU 80% Gas Furnace Two-Stage 2000 CFM 21" Upflow/Horizontal R32 AQ-GR9T801005CN Upgrade your home’s heating with the AC...

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ACiQ AQ-GR9T801004CN

ACiQ 100K BTU 80% Gas Furnace Two-Stage 1600 CFM 21" Upflow/Horizontal R32

SKU: AQ-GR9T801004CN
Product ID: 089562
$0.00 - $0.00
$0.00
$2,090.00
$2,090.00 - $2,090.00
$2,090.00

Product Details ACiQ 100K BTU 80% Gas Furnace Two-Stage 1600 CFM 21" Upflow/Horizontal R32 AQ-GR9T801004CN The ACiQ AQ-GR9T801004CN gas furnace is...

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ACiQ AQ-GR9T800805CN

ACiQ 80000 BTU 80% Gas Furnace Two-Stage 2000 CFM 21" Upflow/Horizontal R32

SKU: AQ-GR9T800805CN
Product ID: 089563
$0.00 - $0.00
$0.00
$2,060.00
$2,060.00 - $2,060.00
$2,060.00

Product Details ACiQ 80,000 BTU 80% Gas Furnace Two-Stage 2000 CFM 21" Upflow/Horizontal R32 AQ-GR9T800805CN The ACiQ AQ-GR9T800805CN gas furnace ...

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ACiQ AQ-GR9T800804CN

ACiQ 80000 BTU 80% Gas Furnace Two-Stage 1600 CFM 21" Upflow/Horizontal R32

SKU: AQ-GR9T800804CN
Product ID: 089564
$0.00 - $0.00
$0.00
$2,080.00
$2,080.00 - $2,080.00
$2,080.00

Product Details ACiQ 80,000 BTU 80% Gas Furnace Two-Stage 1600 CFM 21" Upflow/Horizontal R32 AQ-GR9T800804CN Upgrade your home's heating system wi...

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ACiQ AQ-GR9T800804BN

ACiQ 80K BTU 80% Gas Furnace Two-Stage 1600 CFM 17.5" Upflow/Horizontal R32

SKU: AQ-GR9T800804BN
Product ID: 089565
$0.00 - $0.00
$0.00
$2,010.00
$2,010.00 - $2,010.00
$2,010.00

Product Details ACiQ 80K BTU 80% Gas Furnace 2-Stage 9-Speed 1600 CFM Upflow/Horizontal R32 AQ-GR9T800804BN Upgrade your home's heating system wit...

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ACiQ AQ-GR9T800803BN

ACiQ 80K BTU 80% Gas Furnace Two-Stage 9-Speed 17.5" Upflow/Horizontal R32

SKU: AQ-GR9T800803BN
Product ID: 089566
$0.00 - $0.00
$0.00
$2,000.00
$2,000.00 - $2,000.00
$2,000.00

Product Details ACiQ 80K BTU 80% Gas Furnace Two-Stage 9-Speed 17.5" Upflow/Horizontal R32 AQ-GR9T800803BN Upgrade your home's heating system with...

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ACiQ AQ-GR9T800603BN

ACiQ 60K BTU 80% Gas Furnace Two-Stage 9-Speed 17.5" Upflow/Horizontal R32

SKU: AQ-GR9T800603BN
Product ID: 089567
$0.00 - $0.00
$0.00
$1,325.00
$1,325.00 - $1,325.00
$1,325.00

Product Details ACiQ 60K BTU 80% Gas Furnace Two-Stage 9-Speed 17.5" Upflow/Horizontal R32 AQ-GR9T800603BN The ACiQ AQ-GR9T800603BN gas furnace de...

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ACiQ AQ-GR9T800403AN

ACiQ 40K BTU Gas Furnace 80% Two-Stage 9-Speed 14" Upflow/Horizontal R32

SKU: AQ-GR9T800403AN
Product ID: 089569
$0.00 - $0.00
$0.00
$1,227.00
$1,227.00 - $1,227.00
$1,227.00

Product Details ACiQ 40K BTU Gas Furnace 80% Two-Stage 9-Speed 14" Upflow/Horizontal R32 AQ-GR9T800403AN The ACiQ AQ-GR9T800403AN gas furnace deli...

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ACiQ AQ-GR9S801005CN

ACiQ 100,000 BTU 80% Gas Furnace 9-Speed 21"W 3/4 HP Upflow/Horizontal R32

SKU: AQ-GR9S801005CN
Product ID: 089571
$0.00 - $0.00
$0.00
$1,366.00
$1,366.00 - $1,366.00
$1,366.00

Product Details ACiQ 100,000 BTU 80% Gas Furnace 9-Speed 21"W 3/4 HP Upflow/Horizontal R32 AQ-GR9S801005CN The ACiQ AQ-GR9S801005CN gas furnace is...

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ACiQ AQ-GR9S800805CN

ACiQ 80,000 BTU 80% Gas Furnace 9-Speed 21"W 2000 CFM Upflow/Horizontal R32

SKU: AQ-GR9S800805CN
Product ID: 089572
$0.00 - $0.00
$0.00
$1,283.00
$1,283.00 - $1,283.00
$1,283.00

Product Details ACiQ 80,000 BTU 80% Gas Furnace 9-Speed 21"W 2000 CFM Upflow/Horizontal R32 AQ-GR9S800805CN The ACiQ AQ-GR9S800805CN gas furnace c...

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ACiQ AQ-GR9S800804CN

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

SKU: AQ-GR9S800804CN
Product ID: 089573
$0.00 - $0.00
$0.00
$1,257.00
$1,257.00 - $1,257.00
$1,257.00

Product Details ACiQ 80,000 BTU 80% Gas Furnace 9-Speed 21"W 1600 CFM Upflow/Horizontal R32 AQ-GR9S800804CN The ACiQ AQ-GR9S800804CN gas furnace p...

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ACiQ AQ-GR9S800804BN

ACiQ 80K BTU 80% Gas Furnace 9-Speed 17.5"W 3/4 HP Upflow/Horizontal R32

SKU: AQ-GR9S800804BN
Product ID: 089574
$0.00 - $0.00
$0.00
$1,229.00
$1,229.00 - $1,229.00
$1,229.00

Product Details ACiQ 80K BTU 80% Gas Furnace 9-Speed 17.5"W 3/4 HP Upflow/Horizontal R32 AQ-GR9S800804BN The ACiQ AQ-GR9S800804BN gas furnace offe...

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ACiQ AQ-GR9S800803BN

ACiQ 80K BTU 80% Gas Furnace 9-Speed 17.5"W 1/2 HP Upflow/Horizontal R32

SKU: AQ-GR9S800803BN
Product ID: 089575
$0.00 - $0.00
$0.00
$1,165.00
$1,165.00 - $1,165.00
$1,165.00

Product Details ACiQ 80K BTU 80% Gas Furnace 9-Speed 17.5"W 1/2 HP Upflow/Horizontal R32 AQ-GR9S800803BN The ACiQ AQ-GR9S800803BN gas furnace deli...

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ACiQ AQ-GR9S800604BN

ACiQ 60000 BTU 80% Gas Furnace 9-Speed 1-Stage 3/4 HP Upflow/Horizontal R32

SKU: AQ-GR9S800604BN
Product ID: 089576
$0.00 - $0.00
$0.00
$1,138.00
$1,138.00 - $1,138.00
$1,138.00

Product Details ACiQ 60,000 BTU 80% Gas Furnace 9-Speed 1-Stage 3/4 HP Upflow/Horizontal R32 AQ-GR9S800604BN The ACiQ AQ-GR9S800604BN gas furnace ...

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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