{"product_id":"hearthstone-stoves-green-mountain-20-freestanding-wood-stove","title":"Hearthstone Stoves Green Mountain 20 Freestanding Wood Stove","description":"\u003ch2\u003eCompact TruHybrid™ Catalytic Wood Stove Sized for Small Spaces\u003c\/h2\u003e\n\u003cp\u003eCast iron construction with a soapstone-lined firebox and TruHybrid™ catalytic combustion, the Green Mountain 20 is sized for cabins, small homes, and rooms up to 575 square feet.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTruHybrid™ combustion\u003c\/strong\u003e combining primary, secondary, and catalytic tertiary combustion with a 78.5% HHV weighted-average efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA certified at 1.14 g\/hr\u003c\/strong\u003e under the 2020 particulate emissions standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 23,000 BTU per hour\u003c\/strong\u003e of Maple cordwood, heating up to 575 square feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoapstone-lined firebox\u003c\/strong\u003e that absorbs the heat of the fire and radiates gentle, long-lasting warmth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurn times up to 9.5 hours on low\u003c\/strong\u003e, with HeatLife™ up to 20 hours per the current owner's manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBurns full-size cordwood\u003c\/strong\u003e up to 18 inches long (16 inches recommended) in a slim 14.7-inch-wide body\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop 6-inch flue outlet\u003c\/strong\u003e with optional rear and side heat shields to reduce clearances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003ch4\u003eTruHybrid™ Catalytic Combustion\u003c\/h4\u003e\n\u003cp\u003eThe TruHybrid™ system combines primary, secondary, and tertiary combustion using a catalytic combustor to deliver clean, efficient burns that surpass 2020 EPA clean air standards. The stove is certified at a 1.14 g\/hr emission rate and, under specific EPA test conditions, has been shown to deliver heat at rates ranging from 14,545 to 20,507 BTU per hour. A bypass control and a supplied catalyst temperature indicator help you engage the catalyst at the correct operating temperature for the cleanest burn.\u003c\/p\u003e\n\u003ch4\u003eSoapstone and Cast Iron Construction\u003c\/h4\u003e\n\u003cp\u003eThe Green Mountain 20 combines a cast iron body with a soapstone-lined firebox. Soapstone absorbs the high heat of the fire and then radiates a gentle heat into the room, extending comfortable warmth well after the flames die down. A large ceramic glass window provides a full view of the fire. The 2026 HearthStone catalog identifies the Green Mountain family of EPA certified room heaters as made in Vermont.\u003c\/p\u003e\n\u003ch4\u003eSized for Small Spaces\u003c\/h4\u003e\n\u003cp\u003eDesigned as a traditional log burner for tight footprints, the Green Mountain 20 heats up to a maximum of 575 square feet. Factors unique to your home, including insulation, windows, floor plan, stove placement, and fuel quality, may reduce the area the stove will heat. The 1.0 cubic foot firebox accepts cordwood up to 18 inches long, with 16-inch logs recommended.\u003c\/p\u003e\n\u003ch4\u003eHeat Shield and Outside Air Options\u003c\/h4\u003e\n\u003cp\u003eOptional rear and side heat shields can be installed individually or together to reduce required clearances to combustible walls. The optional Outside Air Starter kit connects the stove's air intake to a minimum 3-inch outside air duct (ducting supplied by others), with a 3-inch to 4-inch increaser available when a 4-inch duct is needed. An outside air kit is required in all mobile-home installations.\u003c\/p\u003e\n\u003ch3\u003eAvailable Finish and Configuration\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003cth\u003ePart ID\u003c\/th\u003e\n\u003cth\u003eMSRP\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack Matte\u003c\/td\u003e\n\u003ctd\u003e8620-0010\u003c\/td\u003e\n\u003ctd\u003e$2,699\u003c\/td\u003e\n\u003ctd\u003eSole current configuration; cast iron with soapstone-lined firebox; front load; wood fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCombustion technology\u003c\/td\u003e\n\u003ctd\u003eTruHybrid™ catalytic (primary, secondary, and catalytic tertiary combustion)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum heat output\u003c\/td\u003e\n\u003ctd\u003eUp to 23,000 BTU per hour of Maple cordwood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEPA test-condition heat output\u003c\/td\u003e\n\u003ctd\u003e14,545 to 20,507 BTU per hour (output, specific test conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHHV efficiency\u003c\/td\u003e\n\u003ctd\u003e78.5% (weighted average, higher heating value)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEPA certified emissions\u003c\/td\u003e\n\u003ctd\u003e1.14 g\/hr (2020 particulate standard, crib wood)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating area\u003c\/td\u003e\n\u003ctd\u003eUp to a maximum of 575 sq. ft.; home-specific factors may reduce coverage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirebox capacity\u003c\/td\u003e\n\u003ctd\u003e1.0 cu. ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum log length\u003c\/td\u003e\n\u003ctd\u003eUp to 18\" (16\" recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurn time\u003c\/td\u003e\n\u003ctd\u003eUp to 9.5 hours on low, per the current owner's manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeatLife™\u003c\/td\u003e\n\u003ctd\u003eUp to 20 hours, per the current owner's manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e28\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e14.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth\u003c\/td\u003e\n\u003ctd\u003e24.9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e250 lb, per the current owner's manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlue outlet\u003c\/td\u003e\n\u003ctd\u003eTop, 6\" diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChimney connector size\u003c\/td\u003e\n\u003ctd\u003e6\" diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetal chimney\u003c\/td\u003e\n\u003ctd\u003e6\" inside diameter, listed Type HT (UL 103 or ULC S629)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMasonry chimney\u003c\/td\u003e\n\u003ctd\u003e6\" round flue or 8\" x 8\" square flue, code-approved with liner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired chimney draft\u003c\/td\u003e\n\u003ctd\u003eBetween -0.06\" and -0.10\" water column; install a stovepipe damper for drafts above -0.10\" water column\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended chimney height\u003c\/td\u003e\n\u003ctd\u003e16 ft minimum to 30 ft maximum from the top of the stove\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eConforms to UL 1482-2022; certified to CAN\/ULC S627:2023; PFS Report F25-444\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel\u003c\/td\u003e\n\u003ctd\u003eNatural seasoned cordwood only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrate dimensions\u003c\/td\u003e\n\u003ctd\u003e40\" H x 29\" W x 36\" L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eClearances and Hearth Requirements\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe Green Mountain 20 is a freestanding room heater only. It must not be installed into a factory-built fireplace or any fireplace.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClearance dimensions are measured from the furthest point on the cast body of the stove unless otherwise indicated. In the table below, A is the stove body side to the side wall, B is the connector to the side wall, C is the stove body rear to the rear wall, D is the connector to the rear wall, E is the stove body corner to a diagonal wall, and F is the connector corner to a diagonal wall. Optional side and rear heat shields reduce the listed clearances.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParallel installation\u003c\/th\u003e\n\u003cth\u003eA Side (stove)\u003c\/th\u003e\n\u003cth\u003eB Side (connector)\u003c\/th\u003e\n\u003cth\u003eC Rear (stove)\u003c\/th\u003e\n\u003cth\u003eD Rear (connector)\u003c\/th\u003e\n\u003cth\u003eE Corner (stove)\u003c\/th\u003e\n\u003cth\u003eF Corner (connector)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle-wall pipe, no heat shields\u003c\/td\u003e\n\u003ctd\u003e13¾\"\u003c\/td\u003e\n\u003ctd\u003e21\"\u003c\/td\u003e\n\u003ctd\u003e10\" US \/ 15¼\" CAN\u003c\/td\u003e\n\u003ctd\u003e15¾\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e9½\" US \/ 12½\" CAN\u003c\/td\u003e\n\u003ctd\u003e18\" US \/ 21\" CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle-wall pipe, side heat shields\u003c\/td\u003e\n\u003ctd\u003e11¾\" US \/ 13¾\" CAN\u003c\/td\u003e\n\u003ctd\u003e19\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e10\" US \/ 15¼\" CAN\u003c\/td\u003e\n\u003ctd\u003e15¾\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e9½\" US \/ 12½\" CAN\u003c\/td\u003e\n\u003ctd\u003e18\" US \/ 21\" CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle-wall pipe, rear heat shield\u003c\/td\u003e\n\u003ctd\u003e13¾\"\u003c\/td\u003e\n\u003ctd\u003e21\"\u003c\/td\u003e\n\u003ctd\u003e10\" US \/ 15¼\" CAN\u003c\/td\u003e\n\u003ctd\u003e15¾\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e9½\" US \/ 12½\" CAN\u003c\/td\u003e\n\u003ctd\u003e18\" US \/ 21\" CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle-wall pipe, all heat shields\u003c\/td\u003e\n\u003ctd\u003e11¾\" US \/ 13¾\" CAN\u003c\/td\u003e\n\u003ctd\u003e19\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e10\" US \/ 15¼\" CAN\u003c\/td\u003e\n\u003ctd\u003e15¾\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e9½\" US \/ 12½\" CAN\u003c\/td\u003e\n\u003ctd\u003e18\" US \/ 21\" CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble-wall pipe, no heat shields\u003c\/td\u003e\n\u003ctd\u003e13¾\"\u003c\/td\u003e\n\u003ctd\u003e20¾\"\u003c\/td\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003ctd\u003e14½\"\u003c\/td\u003e\n\u003ctd\u003e9½\"\u003c\/td\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble-wall pipe, side heat shields\u003c\/td\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003ctd\u003e16\"\u003c\/td\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003ctd\u003e14½\"\u003c\/td\u003e\n\u003ctd\u003e9½\"\u003c\/td\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble-wall pipe, rear heat shield\u003c\/td\u003e\n\u003ctd\u003e13¾\"\u003c\/td\u003e\n\u003ctd\u003e20¾\"\u003c\/td\u003e\n\u003ctd\u003e3½\"\u003c\/td\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003ctd\u003e9½\"\u003c\/td\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble-wall pipe, all heat shields\u003c\/td\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003ctd\u003e16\"\u003c\/td\u003e\n\u003ctd\u003e3½\"\u003c\/td\u003e\n\u003ctd\u003e9\"\u003c\/td\u003e\n\u003ctd\u003e4\"\u003c\/td\u003e\n\u003ctd\u003e14\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIn Canada, per CSA B365, installations with single-wall pipe require a minimum clearance of 18\" from the flue to a combustible surface, regardless of a smaller clearance noted on the product label. Double-wall connector clearances shown are specific to Simpson DuraVent DVL; check your pipe manufacturer's specifications.\u003c\/p\u003e\n\u003cp\u003eThe current owner's manual also publishes complete through-wall and alcove clearance tables. The minimum unshielded alcove width with double-wall pipe and side heat shields is 32¾\", and the minimum alcove ceiling height is 78½\" from the floor with either a single-wall or double-wall connector. Alcove and through-wall installations must follow the exact configuration tables in the manual.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eChimney connector clearance\u003c\/th\u003e\n\u003cth\u003eA\u003c\/th\u003e\n\u003cth\u003eB\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle-wall pipe, through-the-wall flue exit, with rear heat shield\u003c\/td\u003e\n\u003ctd\u003e17¾\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e14¾\" US \/ 18\" CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle-wall pipe, through-the-wall flue exit, no rear heat shield\u003c\/td\u003e\n\u003ctd\u003e16¾\" US \/ 21\" CAN\u003c\/td\u003e\n\u003ctd\u003e13¾\" US \/ 18\" CAN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble-wall pipe, with rear heat shield\u003c\/td\u003e\n\u003ctd\u003e11\"\u003c\/td\u003e\n\u003ctd\u003e8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble-wall pipe, no rear heat shield\u003c\/td\u003e\n\u003ctd\u003e16¾\"\u003c\/td\u003e\n\u003ctd\u003e13¾\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSingle-wall connector clearance to the ceiling is 18\". For double-wall connector clearance to the ceiling, refer to the connector pipe manufacturer's specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHearth and floor protection:\u003c\/strong\u003e The Green Mountain 20 does not require an insulated hearth pad and has no R-value requirement. Combustible flooring must be protected with a covering of noncombustible material. The minimum floor ember protection is 27½\" wide x 37½\" deep for US installations, including a 16\" front extension measured from the firebox front and 8\" side extensions measured from the firebox sides. For installations in Canada, the minimum is 30⅝\" wide x 47½\" deep, including an 18\" front ember-protection extension and 8\" side extensions. Rooms with luxury vinyl plank or luxury vinyl tile flooring require extra consideration, as some of these floors begin to warp at 110° Fahrenheit; consult the flooring manufacturer and add shielding if necessary.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMobile-home installations:\u003c\/strong\u003e The stove may be installed in a mobile home in accordance with 24 CFR Part 3280, subject to special requirements in the owner's manual. These include an outside air kit in all mobile-home installations, permanent attachment of the stove to the floor, a Mobile Home Chimney and Connector Kit conforming to UL 103 or CAN\/ULC S629 with a stainless spark-arrester cap, no installation in a sleeping room, keeping the front door closed except during startup and loading, burning wood fuel only, maintaining the structural integrity and vapor barrier of the home, required chimney termination geometry, and removal of the chimney when the mobile home is transported.\u003c\/p\u003e\n\u003ch3\u003eIncluded Equipment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGreen Mountain 20 Model 8620 woodstove\u003c\/li\u003e\n\u003cli\u003eOwner's manual\u003c\/li\u003e\n\u003cli\u003eHardware kit: four feet with carriage leveling bolts, mounting bolts, flat washers, and lock washers; air control handle and nut; catalyst temperature indicator\u003c\/li\u003e\n\u003cli\u003eThree refractory floor stones, shipped in the firebox and assembled before final installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatible Accessories\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAccessory\u003c\/th\u003e\n\u003cth\u003ePart ID\u003c\/th\u003e\n\u003cth\u003eMSRP\u003c\/th\u003e\n\u003cth\u003eCompatibility or requirement note\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Heatshield\u003c\/td\u003e\n\u003ctd\u003e96-68200\u003c\/td\u003e\n\u003ctd\u003e$49\u003c\/td\u003e\n\u003ctd\u003eClips onto the back of the stove to reduce rear clearances\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Heatshield, Left or Right (single)\u003c\/td\u003e\n\u003ctd\u003e96-68205\u003c\/td\u003e\n\u003ctd\u003e$69\u003c\/td\u003e\n\u003ctd\u003eClips onto either side of the stove; one shield per side; install on both sides to reduce both side clearances\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Air Starter\u003c\/td\u003e\n\u003ctd\u003e96-53400\u003c\/td\u003e\n\u003ctd\u003e$109\u003c\/td\u003e\n\u003ctd\u003eConnects the air intake to a minimum 3\" outside air duct (ducting supplied by others); required for all mobile-home installations; in Canada, requires floor attachment and a damper allowing 100% closure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\" to 4\" Outside Air Increaser\u003c\/td\u003e\n\u003ctd\u003e90-53308\u003c\/td\u003e\n\u003ctd\u003e$49\u003c\/td\u003e\n\u003ctd\u003eAdapter used with the Outside Air Starter when a 4\" outside air duct is needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWarranty\u003c\/h3\u003e\n\u003cp\u003eThe Green Mountain 20 is covered by HearthStone's limited warranty to the original purchaser, including limited lifetime coverage (defined as 10 years) on stone, cast iron not listed elsewhere, and the wood clean-burning air-supply system; 5-year coverage on door handles and latches and on steel components and the firebox; 2-year coverage on refractory and vermiculite panels and baffles; and 1-year coverage on the enamel finish, accessories, glass, and other listed components. The catalytic combustor is warranted separately by its manufacturer, Applied Ceramics, with a two-year replacement warranty followed by a prorated schedule. Conditions, exclusions, and registration requirements apply; refer to the owner's manual for complete warranty terms.\u003c\/p\u003e\n\u003ch3\u003eAbout HearthStone\u003c\/h3\u003e\n\u003cp\u003eHearthstone Quality Home Heating Products, Inc. of Morrisville, Vermont handcrafts soapstone and cast iron stoves that combine natural materials with advanced clean-burning combustion technology. The 2026 HearthStone catalog identifies the Green Mountain family of EPA certified room heaters as made in Vermont. Visit our showroom to see HearthStone quality in person and to discuss the right installation for your home.\u003c\/p\u003e","brand":"Hearthstone Stoves","offers":[{"title":"Default Title","offer_id":53636749426964,"sku":"8620","price":2699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/9381\/2756\/files\/0284__Hergom_GM20_001-02_1.webp?v=1786670175","url":"https:\/\/cozyglowstoves.com\/products\/hearthstone-stoves-green-mountain-20-freestanding-wood-stove","provider":"Cozy Glow Stoves","version":"1.0","type":"link"}