Lennox 40,000 BTU Furnaces
Lennox gas furnaces at 40,000 BTU input, in Elite EL180 and EL195 models. Ratings run 80% to 95% AFUE, in 14.5 and 17.5 inch upflow/horizontal (UH) cabinets.
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Quick view Lennox EL180UH040NE36A 80% AFUE 40,000 BTU 14.5" Gas Furnace
The Lennox EL180UH040NE36A is an Elite Series single-stage gas furnace rated 40,000 BTU input and 33,000 BTU output...Regular price $4,925.37Sale price $4,925.37 Regular price -
Quick view Lennox EL195UH040NE36B 95% AFUE 40,000 BTU 17.5" Gas Furnace
The Lennox EL195UH040NE36B is an Elite Series single-stage gas furnace rated 40,000 BTU input and 39,000 BTU output...Regular price $5,522.39Sale price $5,522.39 Regular price -
Quick view Lennox EL180UH040NE36AK 80% AFUE 40,000 BTU 14.5" Wide Furnace
The Lennox EL180UH040NE36AK is an Elite Series single-stage gas furnace rated 40,000 BTU input and 33,000 BTU output...Regular price $5,074.63Sale price $5,074.63 Regular price -
Quick view Lennox EL195UH040NE36BK 95% AFUE 40,000 BTU 17.5" Wide Furnace
The Lennox EL195UH040NE36BK is an Elite Series single-stage gas furnace rated 40,000 BTU input and 39,000 BTU output...Regular price $5,820.90Sale price $5,820.90 Regular price
Choosing a 40,000 BTU Lennox furnace
The EL180 is 80% AFUE and typically vents through a metal flue, which often makes for a simpler swap when you're replacing another 80% furnace. The EL195 is a condensing furnace, so plan for PVC venting and a condensate drain. Every model here is single-stage, so it runs at full heat whenever it's on. Size the furnace from a load calculation, then match the cabinet width to your space and your evaporator coil.
To compare by efficiency, see Lennox 80% and 95% AFUE furnaces. Need a different size? See Lennox 30,000 BTU furnaces and Lennox 44,000 BTU 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 40,000 BTU Furnaces are known for.