{"product_id":"105-000-btu-natural-gas-garage-heater-quiet-forced-air-ceiling-mount","title":"Reznor 105,000 BTU Natural Gas Unit Heater - Quiet Forced Air","description":"\u003cp\u003eIn this review of the Reznor UDXC-100, the bottom line is simple: it is a heavy-duty indoor natural gas heater built for garages, workshops, and light industrial spaces that need dependable, quiet heat. The reviewer found the unit's dual firing levels and an 83% thermal efficiency to be the single biggest reason to consider it if you want energy-conscious performance without noisy operation. Installation requires appropriate mounting hardware and following local codes, but the included horizontal Cat 3 Z-vent kit and robust construction make the UDXC-100 a practical long-term heating solution.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Heat Output:\u003c\/strong\u003e Two firing levels let the heater run at a lower 61,005 BTU for mild days or up to 87,150 BTU for colder conditions, so it adapts to changing needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Operation:\u003c\/strong\u003e The unit achieves around an 83% thermal efficiency rating, helping reduce wasted fuel compared with older, less efficient models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet Forced Air:\u003c\/strong\u003e A low static axial propeller fan and vibration isolation make the heater noticeably quieter than many commercial shop heaters during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Heat Exchanger:\u003c\/strong\u003e The TCORE2 titanium-stabilized aluminized steel heat exchanger and patented single-burner combustion are built for lasting service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Access and Controls:\u003c\/strong\u003e A removable front face, hinged access door panel, integrated circuit board display, and status LED simplify setup and troubleshooting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Venting Kit:\u003c\/strong\u003e The listing includes a horizontal category 3 single wall Z-vent kit for sidewall venting, which helps streamline initial installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis heater is well suited to homeowners with large attached or detached garages, small shop owners, and light industrial spaces where a ceiling-mounted or suspended indoor heater is preferred. People who value quieter operation and efficiency will find the UDXC-100 appealing because of its low static fan and 83% efficiency.\u003c\/p\u003e\n\u003cp\u003eIt is not aimed at consumers who need portable or space-limited electric heaters, or those who cannot accommodate hard-venting out a sidewall. Buyers who need ceiling mount brackets should note that mounting hardware is sold separately and professional installation may be required to maintain warranty coverage.\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\u003eDual firing levels provide flexibility for different weather and usage patterns.\u003c\/li\u003e\n\u003cli\u003eQuiet, vibration-isolated propeller fan reduces noise in enclosed work areas.\u003c\/li\u003e\n\u003cli\u003eRobust construction with a TCORE2 heat exchanger and integrated controls simplifies maintenance.\u003c\/li\u003e\n\u003cli\u003eIncludes a horizontal Cat 3 Z-vent kit to expedite sidewall venting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMounting brackets are not included so additional parts and installation planning are needed.\u003c\/li\u003e\n\u003cli\u003eRequires compliance with local codes and professional installation to ensure the warranty remains valid.\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\u003eHeat Output\u003c\/td\u003e\n\u003ctd\u003eLow fire 61,005 BTU \/ High fire 87,150 BTU\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\u003c\/td\u003e\n\u003ctd\u003eLow static axial propeller fan, vibration isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVenting\u003c\/td\u003e\n\u003ctd\u003eHorizontal Cat 3 single wall Z-vent kit included\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 choice for garages, workshops, and small commercial spaces that need steady indoor natural gas heat with quieter operation and good efficiency. It offers durable construction and convenient controls, and the included venting kit reduces installation complexity, making it a solid long-term investment for anyone prepared to arrange proper mounting and code-compliant installation.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs the venting kit included?\u003c\/strong\u003e\u003cbr\u003eThe listing includes a horizontal category 3 single wall Z-vent kit for sidewall venting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be ceiling mounted?\u003c\/strong\u003e\u003cbr\u003eYes, the heater has four suspension points with threaded-nut retainers for ceiling hanging, but mounting hardware is sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat warranty coverage is provided?\u003c\/strong\u003e\u003cbr\u003eHeat exchanger, burner, and flue collection box assembly have a 9 year warranty; electrical and mechanical components have a 4 year warranty, with proper installation required for validity.\u003c\/p\u003e","brand":"1HVAC","offers":[{"title":"Default Title","offer_id":46776646500571,"sku":"B0DSLT29G9","price":1997.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41pJdSpUvoL._AC_SL1000_862e1c25-c892-448c-9917-df06b0a0d051.jpg?v=1747585600","url":"https:\/\/gearmusthave.com\/products\/105-000-btu-natural-gas-garage-heater-quiet-forced-air-ceiling-mount","provider":"GearMustHave","version":"1.0","type":"link"}