Green Mountain Insert 70

Cast Iron + Soapstone Wood Burning Fireplace Insert

The GMi70 flush insert turns your fireplace into an efficient and beautiful heat source.

Finish Options:

Matte Black

Brown Enamel

Clearance to Combustible Materials

Green Mountain 70

Model 8450

MSRP: $2999* - Matte Black

MSRP: $3399* - Brown Enamel

*plus transportation, handling, taxes and installation

Contact a dealer near you for assistance.
Email [email protected] for more information.


Meets 2020 EPA Clean Air Standards:

Clean burning and efficient

Cast Iron Faceplate and Door:

Unequaled durability and style, optional brown majolica enamel finish

Durable Construction:

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

Thermostat Controlled Fans:

Turn on and off automatically

Single Lever Air Control:

Easy operation, efficient performance


Efficiency _______________ 69% HHV

Burn Time ______________ 10+ hrs**

EPA Certified _____________ 1.54 g/hr

Heats up to _____________ 2,000 sq ft

Firebox Capacity ___________ 2.4 cu ft

BTU ________________ Up to 75,000

Maximum Log Length ___________ 20″

Flue Diameter _____________ Top - 6″

Actual Weight _____________ 428 lbs.


Steel Surround ____________ 94-5950110

Surround Lower Panel _______ 94-5950510

Surround Extension ________ 94-5950010

Outside Air Adapter Kit ______ 94-53500

Fire Screen Insert __________ 94-69500