{"product_id":"empire-66-gwth25-35w-b-vent-gravity-wall-furnace","title":"Empire 66\" GWTH25\/35W B-Vent Gravity Wall Furnace","description":"\u003cp\u003eThe GWT-25\/35 gravity wall furnace is the single-room counterpart to the dual-wall 50: a slim 66-inch unit offered in 25,000 and 35,000 BTU\/hr outputs that heats a room from an interior or exterior wall with no fan and no electricity. Gravity circulation makes it about as quiet as a heater gets, which is exactly what a bedroom or a study wants.\u003c\/p\u003e\u003cp\u003eLike the rest of the gravity line it vents through conventional 4-inch Type B oval pipe and lives in a 6-inch-deep cabinet, with an optional blower available if you decide you want forced circulation later.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eThis furnace is part of the B-Vent Gravity Wall Furnace family - use the selector above to compare models.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e25,000 or 35,000 BTU\/hr:\u003c\/strong\u003e two outputs to match room size - the smaller for a bedroom, the larger for a living space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilent gravity heat, no power:\u003c\/strong\u003e no fan required; heats straight through a power outage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim 66\" cabinet:\u003c\/strong\u003e 6\" deep, fits a standard stud wall, conventional 4\" B-vent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional blower:\u003c\/strong\u003e add the \u003ca href=\"\/products\/empire-automatic-blower-for-b-vent-gravity-wall-furnace\"\u003egravity-furnace blower\u003c\/a\u003e for forced circulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel-flexible:\u003c\/strong\u003e natural gas or propane; certified vented wall furnace.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e25,000 or 35,000 BTU\/hr (by model)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSingle-room gravity vented wall furnace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Circulation\u003c\/td\u003e\n\u003ctd\u003eGravity (no fan required); optional blower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVenting\u003c\/td\u003e\n\u003ctd\u003eB-Vent, Type B oval 4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel\u003c\/td\u003e\n\u003ctd\u003eNatural Gas or Liquid Propane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnit (measured)\u003c\/td\u003e\n\u003ctd\u003e66-1\/8\" H x 16\" W x 6\" D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGas Inlet\u003c\/td\u003e\n\u003ctd\u003e1\/2\" pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eANSI Z21.86 \/ CSA 2.32 (Vented Wall Furnace)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10-year limited parts (combustion chamber); 1-yr accessories\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\u003eSizing:\u003c\/strong\u003e 25,000 BTU model for a bedroom-scale room, 35,000 for a larger living space\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVenting:\u003c\/strong\u003e vents through 4\" Type B pipe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e no electrical connection needed for the furnace to run\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA permanently installed heating appliance - confirm wall framing and vent routing before installing.\u003c\/p\u003e","brand":"Empire Comfort Systems","offers":[{"title":"Natural Gas \/ 25000","offer_id":50213105598703,"sku":"GWT25WNAT","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"Natural Gas \/ 35000","offer_id":50213105631471,"sku":"GWT35WNAT","price":1399.0,"currency_code":"USD","in_stock":true},{"title":"Liquid Propane \/ 25000","offer_id":50213105664239,"sku":"GWT25WLP","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"Liquid Propane \/ 35000","offer_id":50213105697007,"sku":"GWT35WLP","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/5633\/8415\/files\/GWT25WNAT_ddb18cee-a2fc-4cd6-8eae-fa13d3d81435.jpg?v=1784548180","url":"https:\/\/hearthdepot.com\/products\/empire-66-gwth25-35w-b-vent-gravity-wall-furnace","provider":"Hearth Depot","version":"1.0","type":"link"}