Lennox 2 Stage Furnaces
Lennox two-stage gas furnaces from 44,000 to 132,000 BTU, rated 80% to 97.5% AFUE.
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Quick view Lennox EL297UH110XE60CK 97% AFUE 110,000 BTU 21" Wide Furnace
The Lennox EL297UH110XE60CK is an Elite Series two-stage gas furnace rated 110,000 BTU input and 108,000 BTU output...Regular price $3,514.93Sale price $3,514.93 Regular price -
Quick view Lennox EL297UH135XV60DK 97% AFUE 132,000 BTU 24.5" Wide Furnace
The Lennox EL297UH135XV60DK is an Elite Series two-stage gas furnace rated 132,000 BTU input and 127,000 BTU output...Regular price $4,322.39Sale price $4,322.39 Regular price -
Quick view Lennox ML296DF090XV60C 96% AFUE 88,000 BTU 21" Variable-Speed Downflow Gas Furnace
The Lennox ML296DF090XV60C is a Merit Series two-stage gas furnace rated 88,000 BTU input and 85,000 BTU output...Regular price $2,956.72Sale price $2,956.72 Regular price -
Quick view Lennox ML296DF070XV48B 96% AFUE 66,000 BTU 17.5" Variable-Speed Downflow Gas Furnace
The Lennox ML296DF070XV48B is a Merit Series two-stage gas furnace rated 66,000 BTU input and 64,000 BTU output...Regular price $2,749.25Sale price $2,749.25 Regular price -
Quick view Lennox ML296DF045XV36B 96% AFUE 44,000 BTU 17.5" Variable-Speed Downflow Gas Furnace
The Lennox ML296DF045XV36B is a Merit Series two-stage gas furnace rated 44,000 BTU input and 43,000 BTU output...Regular price $2,805.97Sale price $2,805.97 Regular price -
Save $841.45Quick view Lennox ML296UH110XV60C 96% AFUE 110,000 BTU 21" Variable-Speed Gas Furnace
The Lennox ML296UH110XV60C is a Merit Series two-stage gas furnace rated 110,000 BTU input and 106,000 BTU output...Regular price $2,971.64Sale price $2,971.64 Regular price$3,813.09 -
Save $812.93Quick view Lennox ML296UH090XV48C 96% AFUE 88,000 BTU 21" Variable-Speed Gas Furnace
The Lennox ML296UH090XV48C is a Merit Series two-stage gas furnace rated 88,000 BTU input and 85,000 BTU output...Regular price $2,749.25Sale price $2,749.25 Regular price$3,562.18 -
Save $828.25Quick view Lennox ML296UH070XV36B 96% AFUE 66,000 BTU 17.5" Variable-Speed Gas Furnace
The Lennox ML296UH070XV36B is a Merit Series two-stage gas furnace rated 66,000 BTU input and 62,000 BTU output...Regular price $2,594.03Sale price $2,594.03 Regular price$3,422.28
The lineup covers the Merit ML296, the Elite EL280 and EL297, and the Dave Lennox Signature Collection SL280 and SL297, in 14.5 to 24.5 inch cabinets.
Why two stages
A two-stage furnace runs on a low stage most of the time and steps up to full heat on the coldest days, which gives you longer, steadier cycles than a single-stage unit. Pick 80% AFUE (EL280, SL280) if you're keeping a metal flue, or 96% to 97.5% AFUE (ML296, EL297, SL297) if you can vent with PVC and drain condensate. Want simpler controls? See Lennox single-stage furnaces.
Call (913) 364-0070, Monday to Friday, 9am to 5pm CST, and we'll help you confirm sizing and an AHRI-matched pairing before you order. Free shipping on major equipment from our Kansas City warehouse to every state and D.C. except Alaska, Hawaii, Washington, Oregon, and Idaho, where you pay the shipping rate shown at checkout. Each product page shows whether an item qualifies. HVAC USA is an authorized Lennox reseller, and everything we sell is new factory equipment. Your full Lennox warranty applies when a licensed, manufacturer-certified contractor installs your system and registers it within 60 days.
Get Expert Help
Not sure which of these systems is right for your application? Our team can help you compare models, sizes, and configurations to ensure the best fit for your climate and space.
Reach out to us at (913) 364-0070 or info@hvacusa.store. Reach out to find the right system to help you experience the long-term reliability and performance that Lennox 2 Stage Furnaces are known for.