{"product_id":"reznor-udx-225000-btu-natural-gas-unit-heater","title":"Reznor UDX 225,000 BTU Natural Gas Unit Heater - NUDX225","description":"\u003ch2\u003eReznor UDX 225,000 BTU Natural Gas Unit Heater - NUDX225\u003c\/h2\u003e\n\u003cp\u003eReznor model UDX gas-fired unit heaters are great for space heating applications. These units are power vented to eliminate heat losses up the flue pipe. Each heater features a two-tone black and white powder coated, scratch-resistant paint scheme and has clean rounded corners and edges with no visible screws or fasteners. For air circulation, the UDX series utilize an axial propellor fan.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e83% AFUE Efficiency\u003c\/li\u003e\n\u003cli\u003eTCORE2 titanium stabilized aluminized steel heat exchanger\u003c\/li\u003e\n\u003cli\u003eMulti-try, direct spark ignition with time lockout\u003c\/li\u003e\n\u003cli\u003eVibration\/noise isolated fan and venter motors designed for low noise operation\u003c\/li\u003e\n\u003cli\u003eExternal status indicating LED that blinks if there is a problem that needs service\u003c\/li\u003e\n\u003cli\u003e7-segment display board that shows fault code for quick and easy troubleshooting\u003c\/li\u003e\n\u003cli\u003eOptional integrated downturn nozzle and integrated vertical louvers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"mo4wak\" data-start=\"27\" data-end=\"292\"\u003e\n\u003cstrong data-start=\"29\" data-end=\"66\"\u003eBuilt for serious heating demands\u003c\/strong\u003e\u003cbr data-start=\"66\" data-end=\"69\"\u003eWith \u003cstrong data-start=\"76\" data-end=\"98\"\u003e225,000 BTU output\u003c\/strong\u003e, this unit is engineered for \u003cstrong data-start=\"128\" data-end=\"169\" data-is-only-node=\"\"\u003elarge commercial or industrial spaces\u003c\/strong\u003e like warehouses, workshops, and garages—delivering consistent, high-capacity heat. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1o75xhd\" data-start=\"294\" data-end=\"577\"\u003e\n\u003cstrong data-start=\"296\" data-end=\"348\"\u003eEfficient performance that balances power \u0026amp; cost\u003c\/strong\u003e\u003cbr data-start=\"348\" data-end=\"351\"\u003eOperating at \u003cstrong data-start=\"366\" data-end=\"382\"\u003e~82–83% AFUE\u003c\/strong\u003e, it offers a strong balance between fuel efficiency and high-output heating—ideal for businesses that need reliable warmth without excessive energy waste. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gef9f0\" data-start=\"579\" data-end=\"849\"\u003e\n\u003cstrong data-start=\"581\" data-end=\"621\"\u003eDurability you can rely on long-term\u003c\/strong\u003e\u003cbr data-start=\"621\" data-end=\"624\"\u003eThe \u003cstrong data-start=\"630\" data-end=\"693\"\u003eTCORE2 titanium-stabilized aluminized steel heat exchanger\u003c\/strong\u003e is designed for longevity and resistance to corrosion, making it a dependable investment in demanding environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1lka65a\" data-start=\"851\" data-end=\"1125\"\u003e\n\u003cstrong data-start=\"853\" data-end=\"887\"\u003eSmart, service-friendly design\u003c\/strong\u003e\u003cbr data-start=\"887\" data-end=\"890\"\u003eFeatures like a \u003cstrong data-start=\"908\" data-end=\"940\"\u003e7-segment diagnostic display\u003c\/strong\u003e, \u003cstrong data-start=\"942\" data-end=\"967\" data-is-only-node=\"\"\u003eLED status indicators\u003c\/strong\u003e, and \u003cstrong data-start=\"973\" data-end=\"1000\"\u003eexternal gas connection\u003c\/strong\u003e simplify maintenance and troubleshooting—saving time for installers and technicians. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"e018ng\" data-start=\"1127\" data-end=\"1360\"\u003e\n\u003cstrong data-start=\"1129\" data-end=\"1165\"\u003eQuiet operation for large spaces\u003c\/strong\u003e\u003cbr data-start=\"1165\" data-end=\"1168\"\u003eDespite its power, the \u003cstrong data-start=\"1193\" data-end=\"1236\"\u003evibration-isolated fan and motor system\u003c\/strong\u003e keeps noise levels relatively low, making it suitable even for occupied work areas. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"146mltp\" data-start=\"1362\" data-end=\"1589\"\u003e\n\u003cstrong data-start=\"1364\" data-end=\"1397\"\u003eFlexible installation options\u003c\/strong\u003e\u003cbr data-start=\"1397\" data-end=\"1400\"\u003eWith \u003cstrong data-start=\"1407\" data-end=\"1424\"\u003epower venting\u003c\/strong\u003e, multiple suspension points, and optional airflow accessories, it adapts easily to different layouts and ventilation setups. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1y9fjok\" data-start=\"1591\" data-end=\"1792\"\u003e\n\u003cstrong data-start=\"1593\" data-end=\"1628\"\u003eStrong air circulation coverage\u003c\/strong\u003e\u003cbr data-start=\"1628\" data-end=\"1631\"\u003eHigh airflow and long air throw (up to ~90 ft) ensure heat is distributed evenly across wide areas—reducing cold spots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"102\" data-end=\"312\"\u003e\u003cstrong data-start=\"102\" data-end=\"159\"\u003eQ: What is the heating capacity of the Reznor UDX225?\u003c\/strong\u003e\u003cbr data-start=\"159\" data-end=\"162\"\u003eA: It delivers \u003cstrong data-start=\"177\" data-end=\"192\"\u003e225,000 BTU\u003c\/strong\u003e of powerful heating, ideal for large garages, workshops, and commercial spaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"314\" data-end=\"503\"\u003e\u003cstrong data-start=\"314\" data-end=\"372\"\u003eQ: What efficiency rating does this unit heater offer?\u003c\/strong\u003e\u003cbr data-start=\"372\" data-end=\"375\"\u003eA: The UDX225 operates at \u003cstrong data-start=\"401\" data-end=\"433\"\u003eup to 82–83% AFUE efficiency\u003c\/strong\u003e, helping reduce energy costs. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"505\" data-end=\"685\"\u003e\u003cstrong data-start=\"505\" data-end=\"551\"\u003eQ: What type of fuel does the NUDX225 use?\u003c\/strong\u003e\u003cbr data-start=\"551\" data-end=\"554\"\u003eA: This model runs on \u003cstrong data-start=\"576\" data-end=\"591\"\u003enatural gas\u003c\/strong\u003e and can be converted to propane with an optional kit. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"687\" data-end=\"864\"\u003e\u003cstrong data-start=\"687\" data-end=\"728\"\u003eQ: Is the Reznor UDX225 power vented?\u003c\/strong\u003e\u003cbr data-start=\"728\" data-end=\"731\"\u003eA: Yes, it features \u003cstrong data-start=\"751\" data-end=\"768\"\u003epower venting\u003c\/strong\u003e, minimizing heat loss and improving overall efficiency. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"866\" data-end=\"1060\"\u003e\u003cstrong data-start=\"866\" data-end=\"911\"\u003eQ: What makes the heat exchanger durable?\u003c\/strong\u003e\u003cbr data-start=\"911\" data-end=\"914\"\u003eA: It uses a \u003cstrong data-start=\"927\" data-end=\"990\"\u003eTCORE2 titanium-stabilized aluminized steel heat exchanger\u003c\/strong\u003e for long-lasting performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1062\" data-end=\"1235\"\u003e\u003cstrong data-start=\"1062\" data-end=\"1099\"\u003eQ: How quiet is this unit heater?\u003c\/strong\u003e\u003cbr data-start=\"1099\" data-end=\"1102\"\u003eA: Designed with \u003cstrong data-start=\"1119\" data-end=\"1148\"\u003evibration-isolated motors\u003c\/strong\u003e, it provides \u003cstrong data-start=\"1162\" data-end=\"1194\"\u003elow-noise operation (~52 dB)\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1237\" data-end=\"1450\"\u003e\u003cstrong data-start=\"1237\" data-end=\"1281\"\u003eQ: Is installation and maintenance easy?\u003c\/strong\u003e\u003cbr data-start=\"1281\" data-end=\"1284\"\u003eA: Yes, it includes \u003cstrong data-start=\"1304\" data-end=\"1380\"\u003eexternal gas connections, suspension options, and diagnostic LED display\u003c\/strong\u003e for easy setup and servicing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1452\" data-end=\"1663\"\u003e\u003cstrong data-start=\"1452\" data-end=\"1501\"\u003eQ: What applications is this heater best for?\u003c\/strong\u003e\u003cbr data-start=\"1501\" data-end=\"1504\"\u003eA: Ideal for \u003cstrong data-start=\"1517\" data-end=\"1584\"\u003ecommercial buildings, warehouses, and large residential garages\u003c\/strong\u003e needing reliable, high-output heating.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"29mk8z\" data-start=\"81\" data-end=\"236\"\u003e\n\u003cstrong data-start=\"83\" data-end=\"117\"\u003eClean heat exchanger annually:\u003c\/strong\u003e Prevent dust\/carbon buildup to maintain ~83% efficiency and avoid overheating. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ni3ukv\" data-start=\"237\" data-end=\"402\"\u003e\n\u003cstrong data-start=\"239\" data-end=\"276\"\u003eInspect burner \u0026amp; ignition system:\u003c\/strong\u003e Check direct spark ignition and flame sensor for reliable startup and safe operation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1qistkf\" data-start=\"403\" data-end=\"548\"\u003e\n\u003cstrong data-start=\"405\" data-end=\"430\"\u003eCheck venting \u0026amp; flue:\u003c\/strong\u003e Ensure power-vent system is clear to prevent heat loss and exhaust blockages. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7b3kiv\" data-start=\"549\" data-end=\"707\"\u003e\n\u003cstrong data-start=\"551\" data-end=\"585\"\u003eLubricate \u0026amp; inspect fan motor:\u003c\/strong\u003e Keep axial fan and vibration-isolated motors running smoothly for proper airflow. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nudmwm\" data-start=\"708\" data-end=\"859\"\u003e\n\u003cstrong data-start=\"710\" data-end=\"751\"\u003eTighten gas \u0026amp; electrical connections:\u003c\/strong\u003e External gas connections and wiring should be leak-free and secure. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hlx20o\" data-start=\"860\" data-end=\"997\"\u003e\n\u003cstrong data-start=\"862\" data-end=\"890\"\u003eMonitor LED diagnostics:\u003c\/strong\u003e Use onboard display for early fault detection and troubleshooting. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"36hed0\" data-start=\"998\" data-end=\"1102\"\u003e\n\u003cstrong data-start=\"1000\" data-end=\"1038\"\u003eReplace filters \/ keep unit clean:\u003c\/strong\u003e Prevent airflow restriction and maintain heating performance.\u003c\/li\u003e\n\u003cli data-section-id=\"1v273yj\" data-start=\"1103\" data-end=\"1235\"\u003e\n\u003cstrong data-start=\"1105\" data-end=\"1148\"\u003eSchedule professional servicing yearly:\u003c\/strong\u003e Ensures safety, efficiency, and extends heat exchanger life (key long-term component).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Reznor","offers":[{"title":"Default Title","offer_id":43530467180618,"sku":"NUDX225","price":2117.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/2387\/2074\/files\/udx-1_d0bb7256-2f08-49ee-a47b-6ed7269de636.jpg?v=1776777831","url":"https:\/\/wen0d6-q0.myshopify.com\/products\/reznor-udx-225000-btu-natural-gas-unit-heater","provider":"Power Gear for Every Journey","version":"1.0","type":"link"}