{"product_id":"mestek-xf300a1ns1110-commercial-unit-heater-300000-btu-h","title":"Mestek xf300a1ns1110 Commercial Unit Heater 300000 Btu\/h","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MESTEK xf300a1ns1110 is a power-vented commercial unit heater rated at 300,000 BTU\/h input on natural gas. It operates at 83% thermal efficiency (AFUE) with single-stage direct spark ignition and an aluminum heat exchanger. The unit runs on 115 volts and is driven by two 1\/4 HP open drip-proof (ODP) motors. Designed for commercial and industrial heating applications, this heater supports both standard venting and separated combustion configurations, giving installers flexibility in tight or air-quality-sensitive spaces. Licensed commercial HVAC contractors are the typical installing trade for a unit of this capacity.\u003c\/p\u003e\u003cp\u003eThe xf300a1ns1110 is suited for large commercial spaces requiring high-output forced-air heat — warehouses, manufacturing facilities, loading docks, hangars, and large mechanical rooms. The power-vented design allows installation where natural draft is not practical. The separated combustion option enables the unit to draw outside air for combustion, which is useful in tightly sealed buildings or environments where indoor air contamination is a concern. At 311 pounds, the unit requires proper structural support and rigging during installation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e300,000 BTU\/h natural gas input for high-output commercial heating\u003c\/li\u003e\n\u003cli\u003e83% AFUE single-stage operation for consistent, predictable heat delivery\u003c\/li\u003e\n\u003cli\u003eDirect spark ignition eliminates standing pilot for reliable cold-start performance\u003c\/li\u003e\n\u003cli\u003eAluminum heat exchanger provides corrosion resistance in demanding environments\u003c\/li\u003e\n\u003cli\u003eTwo 1\/4 HP ODP motors for dual-fan air distribution\u003c\/li\u003e\n\u003cli\u003ePower-vented design supports standard vent or separated combustion configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-specification commercial unit heater for high-capacity natural gas heating systems in commercial and industrial installations requiring power-vented or separated combustion configurations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation must be performed by a licensed commercial HVAC contractor in accordance with applicable local mechanical codes and the National Fuel Gas Code (NFPA 54 \/ ANSI Z223.1). Shut off the gas supply and disconnect electrical power before servicing. At 311 pounds, adequate structural support and proper rigging are required during mounting — verify ceiling or overhead support ratings before hanging. Venting must be sized and routed per the manufacturer specifications and local authority having jurisdiction requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Capacity\u003c\/strong\u003e: 300,000 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type\u003c\/strong\u003e: Natural Gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 115 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAFUE\u003c\/strong\u003e: 83%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type\u003c\/strong\u003e: Direct Spark\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger Material\u003c\/strong\u003e: Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Configuration\u003c\/strong\u003e: Two 1\/4 HP ODP Motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenting\u003c\/strong\u003e: Power Vented — Standard Vent or Separated Combustion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStaging\u003c\/strong\u003e: Single Stage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 311 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MESTEK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: xf300a1ns1110\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MESTEK","offers":[{"title":"Default Title","offer_id":51233270694194,"sku":"XF300A1NS1110","price":3823.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/xf-propeller-unit-heater-ng-300-000-btu-hr-115-v-3259-68322.png?v=1780095813","url":"https:\/\/voomisupply.com\/products\/mestek-xf300a1ns1110-commercial-unit-heater-300000-btu-h","provider":"Voomi Supply","version":"1.0","type":"link"}