{"product_id":"powerful-quiet-reznor-105-000-btu-gas-heater-ideal-for-garage-shop-ceiling-mount-udxc-100","title":"Reznor 105,000 BTU Natural Gas Garage Heater UDXC-100 - Ceiling Mount","description":"\u003cp\u003eOur review of the Reznor UDXC-100 105,000 BTU natural gas unit heater finds it best suited to garages, workshops, and small commercial bays where steady, powerful heat and quiet operation are priorities. The bottom line: this model delivers strong forced-air heating with an efficient TCORE2 heat exchanger and two practical firing levels, making it a solid choice when you need reliable indoor gas heat that can be ceiling mounted or bracketed for wall install.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh output:\u003c\/strong\u003e The UDXC-100 offers a rated capacity of 105,000 BTU with two firing levels so it can provide higher output for very cold days and a lower setting for milder conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSolid efficiency:\u003c\/strong\u003e With an approximate 83% thermal efficiency rating, the heater converts a large share of gas input into usable heat for indoor spaces.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDurable heat exchanger:\u003c\/strong\u003e A TCORE2 titanium-stabilized aluminized steel heat exchanger and patented single-burner combustion are built for long service life in demanding environments.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eQuiet forced air:\u003c\/strong\u003e The low static pressure axial propeller fan operates with reduced vibration and noise, which keeps shop noise down while moving warm air effectively.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eServiceable design:\u003c\/strong\u003e The updated cabinet with removable front face and hinged access door simplifies routine servicing and component access.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMount flexibility:\u003c\/strong\u003e Threaded-nut retainers at four suspension points allow ceiling hang or bracketed wall mounting when appropriate hardware is used.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe UDXC-100 is aimed at homeowners and small business operators who need a robust indoor gas heater for a garage, workshop, small warehouse, or service bay. Installers and facilities managers will appreciate the performance range, integrated controls, and service access when planning long-term upkeep.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include users who require ventless or outdoor-only heaters or projects that must avoid any fuel-burning appliance indoors; this unit requires proper venting (category 1 or category 3 depending on routing) and code-compliant installation to validate the warranty.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eHigh and low fire settings give flexible heat output for varying winter conditions.\u003c\/li\u003e\n \u003cli\u003eQuiet axial propeller fan and power venting produce effective forced-air distribution without excessive noise.\u003c\/li\u003e\n \u003cli\u003eDurable construction with a titanium-stabilized heat exchanger and integrated electronics reduces long-term maintenance concerns.\u003c\/li\u003e\n \u003cli\u003eRemovable front and hinged access door make routine service tasks faster.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eMounting hardware and vent piping are sold separately, so additional parts and planning are required for a complete installation.\u003c\/li\u003e\n \u003cli\u003eAs a gas-fired indoor unit, it requires proper venting and professional installation to meet local codes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eUDXC-100 (105,000 BTU)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFuel Type\u003c\/td\u003e\n\u003ctd\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eRated Output\u003c\/td\u003e\n\u003ctd\u003e105,000 BTU (two firing levels)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eThermal Efficiency\u003c\/td\u003e\n\u003ctd\u003eApproximately 83%\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFan Type\u003c\/td\u003e\n\u003ctd\u003eLow static pressure axial propeller fan\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eHeat Exchanger\u003c\/td\u003e\n\u003ctd\u003eTCORE2 titanium-stabilized aluminized steel\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e9 year heat exchanger; 4 year electrical and mechanical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Reznor UDXC-100 is a practical, value-oriented indoor gas unit heater for garages and small commercial spaces that need dependable forced-air warmth and quiet operation. Given its robust heat exchanger, dual firing levels, and serviceable cabinet design, it represents good long-term value for installations that can provide proper venting and mounting hardware.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this heater be ceiling mounted?\u003c\/strong\u003e\u003cbr\u003eYes, the unit has threaded-nut retainers at four suspension points for ceiling hanging; mounting brackets are sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat venting is required?\u003c\/strong\u003e\u003cbr\u003eVertical roof venting uses category 1 double wall B-vent; horizontal sidewall venting requires category 3 single wall vent pipe per installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the fan noisy?\u003c\/strong\u003e\u003cbr\u003eNo, the low static pressure axial propeller fan is designed for quiet operation with vibration isolation for indoor environments.\u003c\/p\u003e","brand":"1HVAC","offers":[{"title":"Default Title","offer_id":46783715999963,"sku":"B0CBVZ8PY4","price":1692.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41pJdSpUvoL._AC_SL1000_b3cc6c04-0a77-42b7-8d78-82fcdb2430d6.jpg?v=1747585716","url":"https:\/\/gearmusthave.com\/products\/powerful-quiet-reznor-105-000-btu-gas-heater-ideal-for-garage-shop-ceiling-mount-udxc-100","provider":"GearMustHave","version":"1.0","type":"link"}