{"product_id":"lennox-ml193df045xe36bk-44-000-furnace","title":"Lennox ML193DF045XE36BK 93% AFUE 44,000 BTU 17.5\" Downflow Gas Furnace","description":"\u003cp\u003eThe Lennox ML193DF045XE36BK is a Merit Series single-stage gas furnace rated 44,000 BTU input and 43,000 BTU output at 93% AFUE. It comes in a 17.5-inch B cabinet, installs downflow, and has a constant torque blower sized for 1.5 to 3 tons of add-on cooling.\u003c\/p\u003e\n\u003ch2\u003eKey specs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeating: 44,000 BTU input, 43,000 BTU output, 93% AFUE, single-stage\u003c\/li\u003e\n\u003cli\u003eCabinet: B size, 17.5 inches wide, downflow\u003c\/li\u003e\n\u003cli\u003eBlower: 1\/2 hp constant torque motor, 335 to 1,430 cfm, for 1.5 to 3 tons of cooling\u003c\/li\u003e\n\u003cli\u003eTemperature rise: 30 to 60°F\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eReading the model number\u003c\/h2\u003e\n\u003cp\u003eML is Lennox's Merit line, 1 means single-stage, 93 is the AFUE, and DF is downflow. 045 is the 44,000 BTU input, X means it meets California's 40 ng\/J NOx standard, E is the high efficiency constant torque blower motor, 36 is the nominal add-on cooling size, B is the 17.5-inch cabinet, and K means the furnace is ready for Lennox refrigerant detection.\u003c\/p\u003e\n\u003ch2\u003eWhat it pairs with\u003c\/h2\u003e\n\u003cp\u003eDownflow coils with the same letter match the furnace's supply air opening, so you want a Lennox CK40DT coil with B in its size code.\u003c\/p\u003e\n\u003cp\u003eThe AHRI Directory lists this furnace in certified systems with CK40DT coils and Lennox EL15KC1, EL16KC1, EL18KCV, EL22KCV, ML13KC1, ML14KC1, and ML17KC2 air conditioners, plus EL16KP1, EL18KSLV, EL19KPV, EL21KLV, and ML14KP1 heat pumps. Your efficiency rating depends on the exact outdoor unit, coil, and furnace together.\u003c\/p\u003e\n\u003ch2\u003eSizing and fit\u003c\/h2\u003e\n\u003cp\u003eSize the furnace from a Manual J load calculation. Filters and filter mounting aren't included, so plan for a filter rack.\u003c\/p\u003e\n\u003cp\u003eEven with the X low NOx code, Lennox says this furnace series can't go in the South Coast, San Joaquin Valley, and Bay Area air districts. It isn't certified for mobile homes, RVs, or outdoor installs.\u003c\/p\u003e\n\u003ch2\u003eWarranty and registration\u003c\/h2\u003e\n\u003cp\u003eHVAC 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.\u003c\/p\u003e\n\u003ch2\u003eShipping and help\u003c\/h2\u003e\n\u003cp\u003eIt ships from our Kansas City warehouse. 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.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":47627471159458,"sku":"ML193DF045XE36BK","price":2005.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/3352\/5410\/files\/download_5095e666-cbdc-4074-9d5a-909ce99d1fa6.jpg?v=1788738209","url":"https:\/\/hvacusa.store\/products\/lennox-ml193df045xe36bk-44-000-furnace","provider":"HVAC USA","version":"1.0","type":"link"}