Hearthstone Green Mountain 40 Wood Stove


Green Mountain 40

Model 8640



TruHybrid™ Combustion System:
Clean burning, uber-efficient, burn times up to 16 hours**.

Single Lever Air Control:
Easy operation, consistent performance

Easy Catalyst Control Handle:
Open side lever for smokeless startups, close for long, efficient fires

Durable Construction:
Full cast iron construction with 1¼” soapstone lining offers lasting heat and a lifetime of trouble free service.

Large Front Door Glass:
The giant window warms your home with heat and the flickering light of the fire.



Efficiency _______________ 79% HHV

Burn Time ______________ 16+ hrs**

EPA Certified _____________ 0.9 g/hr

Heats up to _____________ 1,400 sq ft

Firebox Capacity ___________ 1.32 cu ft

BTU ________________ Up to 40,000

Maximum Log Length __________ 16″

Flue Diameter ____________ Top – 6″

Ash Pan ____________________ n/a

Actual Weight _____________ 464 lbs.

Alcove Certified ______________ Yes

Mobile Home Certified _________ Yes



Convection Blower _________ 96-57400

Outside Air Adapter ________ 96-53400


Green Mountain 40 Owners Manual