Heatmor Wood Boiler

Some like to refer to these wood boilers as Heat More Wood Furnaces which does in fact seem to be a logical name :) , but the real corporate name is HEATMOR™ Inc., located in Warroad, MN on the shores of Lake of the Woods.

They have been manufacturing the heatmor wood boiler since 1984, one of the oldest fabricators of outdoor boilers in North America.

They make a range of sizes from small units rated for 3,000 square feet, up to larger commercial boilers for space needs of up to 25,000 square feet. It is important to size your boiler correctly, so ask for help. Buying excess capacity is not always the best approach.

Heatmore has developed units that are duel fuel with certified coal, wood pellets and/or corn, but have yet to meet someone that has realtime experience with these units.

Key Features:

Stainless Steel Fire Box:

Since 1994, 409 titanium enhanced stainless steel, has been the metal of choice for the boiler fire box on the typical heatmor wood boiler. Their research department suggests that this stainless steel box will last three times longer than the typical carbon steel outdoor boiler, allowing heatmor to offer one of the best warranties in the industry.

Powered Combustion Air

The heat more wood furnace requires a 110 volt power source to run a blower that provides combustion air into the upper burn chamber and from below the ash pan. The latter is to facilitate faster ignition when the fire has been allowed to die.

Overflow Bladder:

This is one of the more unique features of a heatmor wood boiler. Think of the overflow container on your car's radiator. This is kind of the same thing. When the water in the boiler heats and expands, heatmor has added a inner tube type of bladder to the top of the boiler to hold the expanded volume of water. Why? Reduces the amount of top up water needed and prevents the overall pressure build up in your wood furnace.

Fire Box Door:

The fire box door on the heatmor wood boiler has been fitted with plumbing to allow boiler water to flow through the door. This keeps the metal in the door at a lower temperature preventing warpage, and at the same time creates a point of transfer to heat your water. Based on our 20 year expedience with an industrial wood boiler, this is a critical feature to create an airtight fire box with air flow controlled by a powered blower.


heat more wood furnaces