{"product_id":"lennox-90k-btu-80-downflow-variable-speed-two-stage-furnace-sl280df090v60ck","title":"Lennox 90k BTU 80% Downflow - Variable Speed Two-Stage Furnace - SL280DF090V60CK","description":"\u003cp\u003eThe Lennox SL280DF090V60CK furnace combines powerful, dependable heating with advanced two-stage, variable-speed technology for enhanced energy efficiency and comfort. With an 80% AFUE rating, a two-stage gas valve, and a variable-speed blower motor, the SL280DF delivers consistent warmth, quieter operation, and precise temperature control—making it an excellent choice for homeowners seeking premium performance in a downflow application. Built with Lennox's reputation for quality, this furnace ensures lasting reliability and cost-effective operation.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e80% AFUE Efficiency:\u003c\/strong\u003e Provides steady heating performance while keeping energy consumption manageable for affordable comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Stage Heating:\u003c\/strong\u003e Runs on the lower stage most of the time for steadier temperatures, fewer temperature swings, and quieter operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable-Speed Blower:\u003c\/strong\u003e Enhances airflow and temperature control, optimizing indoor comfort while reducing energy usage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Steel Cabinet:\u003c\/strong\u003e Designed to withstand wear and tear, ensuring long-lasting performance and reduced maintenance needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet Operation:\u003c\/strong\u003e Operates smoothly and quietly, creating a more peaceful and comfortable indoor environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Air Quality:\u003c\/strong\u003e Supports better filtration and humidity control when paired with Lennox air purification systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe Lennox SL280DF090V60CK furnace is an ideal solution for homeowners looking for efficient, reliable, and advanced heating technology. Pair it with a Lennox air conditioner or heat pump to create a complete HVAC system tailored for year-round comfort and performance.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFurnace Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSL280DF090V60CK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity (BTU)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStages\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo-Stage Variable Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCabinet Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAFUE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDownflow\/Horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 Year Parts, 10 Year Furnace (When Registered with OEM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":47250313216131,"sku":null,"price":2820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/6986\/0483\/files\/Screenshot2026-06-04at9.38.45AM.png?v=1780584019","url":"https:\/\/www.theacfactory.com\/products\/lennox-90k-btu-80-downflow-variable-speed-two-stage-furnace-sl280df090v60ck","provider":"The AC Factory","version":"1.0","type":"link"}