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 SL280DF110V60C 80% AFUE 110,000 BTU 21" Variable-Speed Downflow Gas Furnace
The Lennox SL280DF110V60C is a Dave Lennox Signature Collection two-stage gas furnace rated 110,000 BTU input and 87,000...Regular price $3,497.01Sale price $3,497.01 Regular price -
Quick view Lennox SL280DF090V60C 80% AFUE 88,000 BTU 21" Variable-Speed Downflow Gas Furnace
The Lennox SL280DF090V60C is a Dave Lennox Signature Collection two-stage gas furnace rated 88,000 BTU input and 70,000...Regular price $3,325.37Sale price $3,325.37 Regular price -
Quick view Lennox SL280DF090V48B 80% AFUE 88,000 BTU 17.5" Variable-Speed Downflow Gas Furnace
The Lennox SL280DF090V48B is a Dave Lennox Signature Collection two-stage gas furnace rated 88,000 BTU input and 69,000...Regular price $3,238.81Sale price $3,238.81 Regular price -
Quick view Lennox SL280DF070V36A 80% AFUE 66,000 BTU 14.5" Variable-Speed Downflow Gas Furnace
The Lennox SL280DF070V36A is a Dave Lennox Signature Collection two-stage gas furnace rated 66,000 BTU input and 52,000...Regular price $2,840.30Sale price $2,840.30 Regular price -
Quick view Lennox SL280UH135V60D 80% AFUE 132,000 BTU 24.5" Variable-Speed Gas Furnace
The Lennox SL280UH135V60D is a Dave Lennox Signature Collection two-stage gas furnace rated 132,000 BTU input and 105,000...Regular price $3,071.64Sale price $3,071.64 Regular price -
Quick view Lennox SL280UH110V60C 80% AFUE 110,000 BTU 21" Variable-Speed Gas Furnace
The Lennox SL280UH110V60C is a Dave Lennox Signature Collection two-stage gas furnace rated 110,000 BTU input and 87,000...Regular price $3,071.64Sale price $3,071.64 Regular price -
Quick view Lennox SL280UH090V60C 80% AFUE 88,000 BTU 21" Variable-Speed Gas Furnace
The Lennox SL280UH090V60C is a Dave Lennox Signature Collection two-stage gas furnace rated 88,000 BTU input and 70,000...Regular price $2,910.45Sale price $2,910.45 Regular price -
Quick view Lennox SL280UH090V48B 80% AFUE 88,000 BTU 17.5" Variable-Speed Gas Furnace
The Lennox SL280UH090V48B is a Dave Lennox Signature Collection two-stage gas furnace rated 88,000 BTU input and 70,000...Regular price $2,740.30Sale price $2,740.30 Regular price
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.