Hearthstone GMi70
Hearthstone GMi70
Hearthstone GMi70
Hearthstone GMi70

Hearthstone GMi70

wood insert

Hearthstone Green Mountain GMi70 medium wood insert

  • Heats up to: 2,000 square feet
  • Log Size: 20"
  • Non-Catalytic
  • Burn Time/Heat Life: Up to 10 hrs
  • 2.4 cubic firebox
  • Please email for quote


Flush cast iron design

The cast iron front of the GMi70 is designed to fit flush with your hearth for a clean and elegant look.

Soapstone firebox

Burn up to 20 inch logs in the soapstone lined firebox. Soapstone retains the maximum heat from you fire and radiates steady warmth as your insert burns.

Simple operation

Our non-catalytic wood insert is easy to use. A single lever air control lets you burn hot and fast or low and slow to keep warm through the night.


Blower: Included

BTU: Up to 70,000

Efficiency: 69% HHV

EPA Certified: 1.54 g/hr

Finish: Brown Enamel, Matte Black

Flue Exit Diameter: 6

Flue Exit Location: Top


Manufacturer's Website


Spec Sheet