{"product_id":"empire-18-hydraulic-thermostat-white-18-000-btu-vent-free-infrared-heater","title":"Empire 18\" Hydraulic Thermostat, White 18,000 Btu, Vent-Free Infrared Heater","description":"\u003cp\u003eThe thermostat 18\" infrared heater is the living-room heater you never have to touch: set a temperature and its hydraulic thermostat drives the 18,000 BTU burner to hold it, modulating quietly instead of leaving you to pick a manual stage. It is the automatic counterpart to the three-setting model.\u003c\/p\u003e\u003cp\u003eSelf-powered thermostat, so it runs through outages; radiant plaques, so the room feels warm immediately; white finish over a slim 18-inch wall footprint. Natural gas or propane, fuel-fixed at purchase.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eThis product is part of the Vent-Free Infrared Heater family - use the selector above to compare sizes and control options.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e18,000 BTU\/hr, thermostat-managed:\u003c\/strong\u003e radiant ceramic-plaque heat, felt directly rather than blown as warm air.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic comfort:\u003c\/strong\u003e the hydraulic thermostat holds temperature so you never adjust a setting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVent-free, outage-proof:\u003c\/strong\u003e no flue losses; keeps heating when the power is out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel-fixed with ODS:\u003c\/strong\u003e ordered natural gas or propane, not field-convertible; oxygen depletion sensor standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd circulation:\u003c\/strong\u003e the \u003ca href=\"\/products\/empire-automatic-blower-vent-free-infrared-blueflame-heater-accessory\"\u003eautomatic blower\u003c\/a\u003e spreads the heat; a \u003ca href=\"\/products\/empire-stand-for-floor-vent-free-infrared-blueflame-heater-accessories\"\u003efloor stand\u003c\/a\u003e frees the wall.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Width\u003c\/td\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input\u003c\/td\u003e\n\u003ctd\u003e18,000 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Settings\u003c\/td\u003e\n\u003ctd\u003ethermostatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel\u003c\/td\u003e\n\u003ctd\u003eNatural Gas or Liquid Propane - fuel-fixed at purchase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Type\u003c\/td\u003e\n\u003ctd\u003eRadiant infrared ceramic plaque\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl\u003c\/td\u003e\n\u003ctd\u003eHydraulic thermostat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVenting\u003c\/td\u003e\n\u003ctd\u003eVent-Free (no chimney or flue)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRoom-Size Guidance\u003c\/td\u003e\n\u003ctd\u003eapprox. 50 cu ft of space per 1,000 BTU\/hr input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit (measured)\u003c\/td\u003e\n\u003ctd\u003e22\" H x 18 W x 6-1\/2\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eWall-mount (permanently located)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety\u003c\/td\u003e\n\u003ctd\u003eOxygen Depletion Sensor; operates in power outages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eANSI Z21.11.2-2016 (design-certified by CSA, Unvented Room Heater)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLimited lifetime parts + 5-yr labor (combustion chamber, heat exchanger); other tiers per manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eInstallation \u0026amp; Planning\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e wall-mount, permanently located, never portable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenting:\u003c\/strong\u003e none - vent-free, no chimney or flue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombustion air:\u003c\/strong\u003e run the vent-free combustion-air worksheet for the room before finishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas:\u003c\/strong\u003e own manual gas shut-off; size the gas pipe from the length-versus-diameter table\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e none required - operates during power outages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConversion:\u003c\/strong\u003e natural gas or propane, fuel-fixed at purchase; not field-convertible\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAbove 2,000 feet, derate 4% per 1,000 feet of elevation.\u003c\/p\u003e","brand":"Empire Comfort Systems","offers":[{"title":"Propane","offer_id":50213086757103,"sku":"SR18TWLP","price":835.0,"currency_code":"USD","in_stock":true},{"title":"Natural Gas","offer_id":50213086789871,"sku":"SR18TWNAT","price":835.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/5633\/8415\/files\/empire_SR18TWLP_3cfc3f26-dfb2-496d-b1b4-9ad18887a098.jpg?v=1784547626","url":"https:\/\/hearthdepot.com\/products\/empire-18-hydraulic-thermostat-white-18-000-btu-vent-free-infrared-heater","provider":"Hearth Depot","version":"1.0","type":"link"}