Perfect for smaller spaces, the HearthStone Green Mountain 20 wood stove delivers powerful, efficient heating in a compact, space-saving design. Whether you’re heating a cabin, tiny home, or a cozy living area, the GM20 offers the perfect balance of performance, sustainability, and timeless style.
| Flue Diameter | 6" |
|---|---|
| BTU/Hr Input | Up to 23,000 BTU/Hr |
| Heating Capacity | Up to 575 sq. ft. |
| Efficiency | 78.5% (HHV) |
| Emissions | 1.14 g/hr |
| Burn Time | Up to 9.5 Hours |
| Log Length | Maximum 18" |
| Loading Door | Front |
| Firebox Size | 1.0 cu. ft. |
| Firebox Construction | Cast Iron & Soap Stone |
| Clean Burn Technology | TruHybrid Technology |
| Fan/Blower | No |
| Flue Size | 6" |
| Venting Configuration | Top |
| Rear Vent Flue Height | N/A |
| Dimensions | 25-1/2" H x 14-3/4" W x 24-5/8" D |
| Unit Weight | 265 lbs. |
| Unique Features | Small Footprint Wood Stove |
| Notes | All specifications per the Manufacturer. Heating capacity and output are to be used as a guide only and cannot be accurately compared across manufacturers. Please visit our showroom to for help determining the best product for you. |
Perfect for smaller spaces, the HearthStone Green Mountain 20 wood stove delivers powerful, efficient heating in a compact, space-saving design. Whether you’re heating a cabin, tiny home, or a cozy living area, the GM20 offers the perfect balance of performance, sustainability, and timeless style.