Lennox 100,000 BTU Furnaces
Lennox gas furnaces at 100,000 BTU input, in Elite EL180 and EL195 and Dave Lennox Signature Collection SL280 models. Ratings run 80% to 95% AFUE, in 21 inch upflow/horizontal (UH) cabinets.
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Quick view Lennox EL180UH100NE60C 80% AFUE 100,000 BTU 21" Gas Furnace
The Lennox EL180UH100NE60C is an Elite Series single-stage gas furnace rated 100,000 BTU input and 80,000 BTU output...Regular price $5,820.90Sale price $5,820.90 Regular price -
Quick view Lennox EL195UH100NE60C 95% AFUE 100,000 BTU 21" Gas Furnace
The Lennox EL195UH100NE60C is an Elite Series single-stage gas furnace rated 100,000 BTU input and 97,000 BTU output...Regular price $6,865.67Sale price $6,865.67 Regular price -
Quick view Lennox SL280UH100NV60C 80% AFUE 100,000 BTU 21" Variable-Speed Gas Furnace
The Lennox SL280UH100NV60C is a Dave Lennox Signature Collection two-stage gas furnace rated 100,000 BTU input and 79,000...Regular price $8,059.70Sale price $8,059.70 Regular price -
Quick view Lennox EL180UH100NE60CK 80% AFUE 100,000 BTU 21" Wide Furnace
The Lennox EL180UH100NE60CK is an Elite Series single-stage gas furnace rated 100,000 BTU input and 80,000 BTU output...Regular price $6,119.40Sale price $6,119.40 Regular price -
Quick view Lennox EL195UH100NE60CK 95% AFUE 100,000 BTU 21" Wide Furnace
The Lennox EL195UH100NE60CK is an Elite Series single-stage gas furnace rated 100,000 BTU input and 97,000 BTU output...Regular price $7,014.93Sale price $7,014.93 Regular price
Choosing a 100,000 BTU Lennox furnace
The EL180 and SL280 are 80% AFUE and typically vent 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. The EL180 and EL195 are single-stage. The SL280 is two-stage, with a low stage for milder days. 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 88,000 BTU furnaces and Lennox 110,000 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 100,000 BTU Furnaces are known for.