Collection: 21" Wide Furnaces
Finding the exact fit for your home heating system is crucial. Our collection of 21 inch wide gas furnaces features top tier models from trusted brands like Goodman and ACiQ, available in capacities from 60,000 to 100,000 BTUs. HVAC Total operates as a BBB accredited wholesale distributor, meaning you get direct access to authorized dealer inventory at unbeatable prices. Shop our high efficiency heating solutions today to enjoy a 60 day money back guarantee and entirely free liftgate shipping right to your door.
Find Your Perfect HVAC System
The fastest & easiest way to narrow down your options
Find Your Perfect HVAC System
The fastest & easiest way to narrow down your options
Step 1: Choose Your Brand
Select the brand that fits your needs.
All brands come with quality you can count on.
Step 2: Choose Your Heating Capacity (BTUs)
Choose the heating output for your home.
Step 3: Choose Your Furnace Efficiency (%)
Pick the efficiency level that works for you.
Step 4: Choose Your Configuration
Customize your system to match your needs.
Step 5: Choose Your Cabinet Width
Choose the cabinet width for your installation.
Step 6: Choose Your Heating Stages
Select how many heating stages you need.
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10-Year Warranty Peace of mind, built in.
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Free Shipping Quick delivery nationwide.
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Trusted Brands Top brands you can count on.
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Expert Support We're here to help you.
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Goodman 100,000 BTU 80% AFUE Single Stage Gas Furnace, Upflow/Horizontal, 21″ Wide
Model: GR9S801005CN5.0 / 5.0
(3) 3 total reviews
Regular price $1,507.00Regular priceUnit price / perSale price $1,507.00 -
Goodman 100,000 BTU 96% AFUE Single Stage Gas Furnace, Upflow/Horizontal, 21″ Wide
Model: GR9S961005CN5.0 / 5.0
(4) 4 total reviews
Regular price $2,382.00Regular priceUnit price / perSale price $2,382.00 -
Goodman 100,000 BTU 96% AFUE Two Stage Gas Furnace, Upflow/Horizontal, 21″ Wide
Model: GR9T961005CN5.0 / 5.0
(3) 3 total reviews
Regular price $2,576.00Regular priceUnit price / perSale price $2,576.00 -
Goodman 80,000 BTU 96% AFUE Single Stage Gas Furnace, Downflow/Horizontal, 21″ Wide
Model: GD9S960804CNRegular price $2,228.00Regular priceUnit price / perSale price $2,228.00 -
Goodman 100,000 BTU 92% AFUE Single Stage Gas Furnace, Upflow/Horizontal, 21″ Wide
Model: GR9S921005CNRegular price $2,188.00Regular priceUnit price / perSale price $2,188.00 -
Goodman 100,000 BTU 80% AFUE Two Stage Gas Furnace, Upflow/Horizontal, 21″ Wide
Model: GR9T801005CNRegular price $1,654.00Regular priceUnit price / perSale price $1,654.00 -
Goodman 80,000 BTU 80% Single Stage Gas Furnace, Upflow/Horizontal, 21" Wide - Ultra Low Nox
Model: GR9S800805CURegular price $2,272.00Regular priceUnit price / perSale price $2,272.00 -
Goodman 80,000 BTU 96% AFUE Two Stage Gas Furnace, Upflow/Horizontal, 21″ Wide
Model: GR9T960804CNRegular price $2,421.00Regular priceUnit price / perSale price $2,421.00 -
Goodman 80,000 BTU 96% AFUE Single Stage Gas Furnace, Upflow/Horizontal, 21″ Wide
Model: GR9S960805CNRegular price $2,288.00Regular priceUnit price / perSale price $2,288.00 -
Goodman 80,000 BTU 80% Single Stage Gas Furnace, Upflow/Horizontal
Model: GR9S800804CNRegular price $1,242.00Regular priceUnit price / perSale price $1,242.00 -
Goodman 100,000 BTU 97% AFUE Modulating Variable Speed Gas Furnace, Upflow/Horizontal, 21" Wide
Model: GRVM971005CNRegular price $3,560.00Regular priceUnit price / perSale price $3,560.00 -
Goodman 80,000 BTU 96% AFUE Two Stage Variable Speed Gas Furnace, Upflow/Horizontal, 21" Wide
Model: GRVT960804CNRegular price $2,953.00Regular priceUnit price / perSale price $2,953.00 -
ACiQ 80% AFUE 80,000 BTU Single Stage Multi-Positional Gas Furnace - 21" Width
Model: N80MSN0902116ARegular price $1,307.00Regular priceUnit price / perSale price $1,307.00 -
Goodman 80,000 BTU 96% Single Stage Gas Furnace, Upflow/Horizontal, 21" Wide - Ultra Low Nox
Model: GR9S960805CURegular price $3,350.00Regular priceUnit price / perSale price $3,350.00 -
Goodman 100,000 BTU 97% AFUE Modulating Variable Speed Gas Furnace, Downflow/Horizontal, 21" Wide
Model: GDVM971005CNRegular price $3,663.00Regular priceUnit price / perSale price $3,663.00 -
Goodman 80,000 BTU 97% AFUE Modulating Variable Speed Gas Furnace, Downflow/Horizontal, 21" Wide
Model: GDVM970804CNRegular price $3,511.00Regular priceUnit price / perSale price $3,511.00 -
Goodman 100,000 BTU 96% AFUE Two Stage Variable Speed Gas Furnace, Downflow/Horizontal, 21" Wide
Model: GDVT961005CNRegular price $3,296.00Regular priceUnit price / perSale price $3,296.00 -
Goodman 100,000 BTU 96% AFUE Two Stage Variable Speed Gas Furnace, Upflow/Horizontal, 21" Wide
Model: GRVT961005CNRegular price $3,207.00Regular priceUnit price / perSale price $3,207.00 -
Goodman 80,000 BTU 96% AFUE Two Stage Variable Speed Gas Furnace, Downflow/Horizontal, 21" Wide
Model: GDVT960804CNRegular price $3,140.00Regular priceUnit price / perSale price $3,140.00 -
Goodman 100,000 BTU 96% AFUE Two Stage Gas Furnace, Downflow/Horizontal, 21″ Wide
Model: GD9T961005CNRegular price $2,663.00Regular priceUnit price / perSale price $2,663.00 -
Goodman 100,000 BTU 96% AFUE Single Stage Gas Furnace, Downflow/Horizontal, 21″ Wide
Model: GD9S961005CNRegular price $2,470.00Regular priceUnit price / perSale price $2,470.00 -
ACiQ 96% AFUE 100,000 BTU Single Stage Multi-Positional Gas Furnace - 21" Width
Model: N96MSN1002120ARegular price $2,281.00Regular priceUnit price / perSale price $2,281.00 -
ACiQ 96% AFUE 80,000 BTU Two Stage Multi-Positional Gas Furnace - 21" Width
Model: G96VTN0802120Regular price $2,271.00Regular priceUnit price / perSale price $2,271.00 -
ACiQ 96% AFUE 100,000 BTU Two Stage Multi-Positional Gas Furnace - 21" Width
Model: G96VTN1002120Regular price $2,261.00Regular priceUnit price / perSale price $2,261.00 -
ACiQ 96% AFUE 80,000 BTU Two Stage Multi-Positional Gas Furnace - 21" Width
Model: G96CTN0802120Regular price $2,115.00Regular priceUnit price / perSale price $2,115.00 -
ACiQ 80% AFUE 100,000 BTU Two Stage Multi-Positional Gas Furnace - 21" Width
Model: G80CTL1102120Regular price $1,984.00Regular priceUnit price / perSale price $1,984.00 -
ACiQ 80% AFUE 80,000 BTU Two Stage Multi-Positional Gas Furnace - 21" Width
Model: G80CTL0902120Regular price $1,859.00Regular priceUnit price / perSale price $1,859.00 -
Goodman 100,000 BTU 80% AFUE Two Stage Gas Furnace, Downflow/Horizontal, 21″ Wide
Model: GD9T801005CXRegular price $1,720.00Regular priceUnit price / perSale price $1,720.00



















