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Wood boiler heating systems intelligently engineered by TARM USA

Standard Equipment

multi fuel furnace multi fuel furnace

Standard Equipment

  • Boiler body, cast iron doors, jacket
  • Oil, gas, or propane burner
  • Boiler controls, draft blower
  • ASME boiler pressure relief valve
  • Cleaning tools
  • Rear or right side flue outlet

Optional Equipment:

  • Domestic hot water coil
  • Enhanced ash container
  • Termovar thermostatic mixing valve
  • Heat Storage System

20 Year Limited Warranty

All HS-TARM Excel boilers are covered by a 20 year limited warranty, a copy of which is provided with each boiler.

Equipment Images


Tankless Hot Water Coil. Finned copper coil provides hot water for household use (optional.)


Combustion Fan. This heavy-duty, quiet fan consumes less than 110 watts of electricity while providing the draft needed to achieve high efficiency.


Ceramic bricks. These bricks make up the heart of the system. Special air injection holes built into these ceramics provide the oxygen needed for complete combustion.

Combustion Tunnel. This is where the magic of “wood gasification” occurs. This is the view you will get when you look into the observation port on the lower door. Temperatures of over 2000 degrees are achieved, therefore utilizing all available energy in the wood.