Green Mountain 20
About the Green Mountain 20
Engineered for cozy corners, it delivers efficient, reliable heating for cabins, tiny homes, or intimate living rooms.
Our TruHybrid™ system burns so cleanly and efficiently, your chimney smoke is barely visible. Enjoy long-lasting comfortable heat thanks to the soapstone-lined firebox. Soapstone absorbs the heat of the fire for hours of cozy comfort. More than just a black box, the GM20 is designed in cast iron with a clean, modern style that complements both traditional and contemporary homes.
Will it fit?
- Stove size
- 14¹¹⁄₁₆" × 28" × 24⅞" (W × H × D)
- Floor protection (hearth pad)
- 27½" wide × 37½" deep
- Flue collar
- 6"
- In front of a masonry fireplace
- Approved — top vent: slides partly into the opening and vents straight up to the liner
- Fireplace opening taller than 28" (the stove's height)
- Mantel at least 62" above the hearth
- Clearance to walls
- 3½" behind (flat wall) · 9" beside · 4" from each wall in a corner — with double-wall pipe and the optional rear heat shield (Rear Heatshield 96-68200 + Side Heatshield 96-68205)
- 9" behind without it
- Floor protection
- 16" in front of the door, 8" each side
From the manufacturer's documentation (page 7). We confirm every measurement on the site visit before anything is ordered.
Specifications
- Heat output
- 23,000 BTU/hr
- Heating area
- up to 575 sq ft (manufacturer's rating)
- Max log length
- 18"
- Firebox size
- 1 cu ft
- Burn time
- Up to 9-1/2 hrs. on low
Documents
Optional Accessories▾
Protect it
Every written quote includes an optional 5-Year Protection Plan — mechanical breakdown, accidental damage, and power surge covered with no deductibles, unlimited covered repairs, and in-home service by our own technicians.
How the plan works →Real installs by Bowman’s
Customer photos
From our customers' homes — related products we've installed.