{"product_id":"sterling-gg120a1nsa11-gas-unit-heater-120000-btu-h","title":"Sterling gg120a1nsa11 Gas Unit Heater 120000 Btu\/h","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STERLING gg120a1nsa11 is a power-vented, gas-fired propeller unit heater rated at 120,000 BTU\/h input with 82 percent thermal efficiency. It runs on natural gas at 115 volts and is built around a 20-gauge tubular aluminized steel heat exchanger designed for long service life in demanding environments. Single-stage gas control and direct spark ignition keep the operating sequence straightforward. The unit is sized for installations where ceiling or wall space is limited, making it a practical choice for licensed HVAC technicians and mechanical contractors working in light commercial or residential garage applications.\u003c\/p\u003e\n\u003cp\u003eThe gg120a1nsa11 is rated for elevations from 0 to 4,999 feet and carries ETL certification for residential garage use as a utility heater. It ships ready for standard power-vented operation and can be converted to separated combustion using the optional X7 accessory kit, giving installers flexibility when fresh combustion air supply is a concern. The low-profile cabinet design suits garages, workshops, and similar spaces where overhead clearance is limited. The open drip-proof motor is appropriate for environments where minor moisture exposure is expected.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e120,000 BTU\/h input capacity at 82 percent thermal efficiency\u003c\/li\u003e\n  \u003cli\u003eSingle-orifice burner system with direct spark ignition for reliable light-off\u003c\/li\u003e\n  \u003cli\u003e20-gauge tubular aluminized steel heat exchanger with 10-year warranty\u003c\/li\u003e\n  \u003cli\u003e321 stainless steel burner box for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e20-gauge jacket panels with baked enamel finish\u003c\/li\u003e\n  \u003cli\u003eConvertible to separated combustion with optional X7 accessory kit\u003c\/li\u003e\n  \u003cli\u003eOSHA-compliant fan guard and terminal strip low-voltage wiring for code-compliant installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eETL certified for use as a residential garage utility heater. Convertible to separated combustion using the STERLING X7 accessory kit. Rated for elevations from 0 to 4,999 feet on natural gas.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a licensed HVAC or mechanical contractor in accordance with the manufacturer instructions, local mechanical codes, and applicable sections of the IFGC. Shut off the gas supply and disconnect electrical power before servicing. Verify the fuel type, supply pressure, and altitude rating are appropriate for the installation site before mounting. When converting to separated combustion, install the X7 accessory kit per the manufacturer instructions before commissioning.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Capacity\u003c\/strong\u003e: 120,000 BTU\/h\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermal Efficiency\u003c\/strong\u003e: 82 percent\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\u003eStages\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type\u003c\/strong\u003e: ODP (Open Drip Proof)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIgnition\u003c\/strong\u003e: Direct Spark\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeat Exchanger Material\u003c\/strong\u003e: 20-gauge aluminized steel tubular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBurner Box Material\u003c\/strong\u003e: 321 stainless steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCabinet\u003c\/strong\u003e: 20-gauge steel with baked enamel finish\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElevation Rating\u003c\/strong\u003e: 0 to 4,999 feet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVenting\u003c\/strong\u003e: Power vented (separated combustion capable with X7 kit)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification\u003c\/strong\u003e: ETL listed for residential garage utility heater use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeat Exchanger Warranty\u003c\/strong\u003e: 10 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: STERLING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: gg120a1nsa11\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sterling","offers":[{"title":"Default Title","offer_id":51138665054514,"sku":"GG120A1NSA11","price":1436.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305531094.jpg?v=1778261416","url":"https:\/\/voomisupply.com\/products\/sterling-gg120a1nsa11-gas-unit-heater-120000-btu-h","provider":"Voomi Supply","version":"1.0","type":"link"}