HearthStone Green Mountain 80 TruHybrid Wood Stove, 6 in Flue Collar

The Green Mountain 80 model 8681 starts a new generation of HearthStone's Green Mountain family, and it looks the part. An elegant silhouette, a linear cast iron texture, and a flush door on hidden hinges give it a clean, modern face.

It also moves to a 6 inch flue collar, which HearthStone calls more versatile, and the flue can exit from the top or the rear. Inside is a 3.15 cubic foot firebox that takes logs up to 23 inches. The TruHybrid catalytic system is rated at 80% efficiency (HHV) with certified emissions of 0.53 g/hr, and an optional blower kit is available.

What Makes the Green Mountain 80 (8681) Different

• New Green Mountain styling. A linear cast iron texture and a flush door on hidden hinges set the 8681 apart.
• 6 inch flue, top or rear. The 6 inch collar can exit from the top or the rear, which gives more options when planning the chimney connection.
• Room for 23 inch logs. The 3.15 cubic foot firebox takes long splits, so less time goes into cutting wood down.
• Low certified emissions. HearthStone's TruHybrid catalytic system gives the 8681 a certified rate of 0.53 g/hr.

This listing is the HearthStone Green Mountain 80 TruHybrid wood stove, model 8681 with a 6 in flue collar (the newer generation, not the 8 in flue model 8680), part number 8681-0010, in matte black.

Key Specifications

• Combustion: TruHybrid catalytic combustor
• Efficiency (HHV): 80%
• Particulate emissions: 0.53 g/hr
• EPA certification: 2020 particulate emissions standard (crib wood)
• Heat output (certification test, Douglas fir crib wood): 33,424 BTU/hr
• Firebox capacity: 3.15 cu ft
• Maximum log length: 23 in
• Flue size: 6 in, top or rear exit
• Dimensions (W x D x H): 29 1/2 in x 25 in x 32 3/4 in
• Weight: 550 lbs
• Blower: Optional, blower kit 96-57801
• HeatLife (HearthStone rating): 30 hours

The efficiency, test output, and HeatLife figures are HearthStone's. How much comfort you get depends on your house, the chimney, the wood, and how the stove is run.

Ownership & Maintenance

The TruHybrid system is built around a catalytic combustor, which should be checked from time to time and will eventually need to be replaced. HeatLife is a HearthStone rating, not a burn time you can count on in every home. We offer ongoing service for our customers.

See the new Green Mountain 80 styling at our Auburn, Brunswick, and Yarmouth showrooms. We can help you decide between flue options and plan the chimney, clearances, and installation.