Heatmor 200X - Fuel Guidelines: What to Burn and Not Burn

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What should I burn?
Wood
This heater is designed to burn natural wood only. Higher efciencies and lower emissions
generally result when burning air dried seasoned hardwoods, as compared to softwoods or
to green or freshly cut hardwoods. DO NOT BURN:
• Garbage;
• Lawn clippings or yard waste;
• Materials containing rubber, including tires;
• Materials containing plastic;
• Waste petroleum products, paints or paint thinners, or asphalt products;
• Materials containing asbestos;
• Construction or demolition debris;
• Railroad ties or pressure-treated wood;
• Manure or animal remains;
• Salt water driftwood or other previously salt water saturated materials;
• Unseasoned wood; or
• Paper products, cardboard, plywood, or particleboard. The prohibition against burning
these materials does not prohibit the use of re starters made from paper, cardboard,
saw dust, wax and similar substances for the purpose of starting a re in an affected
wood heater.
Burning these materials may result in release of toxic fumes or render the heater ineffective
and cause smoke.
Well-seasoned wood is wood that has been properly prepared for combustion. Proper
seasoning is generally accepted to be wood that has been harvested, split if necessary,
and stored for a reasonable amount of time, normally over the summer months. Using a
moisture meter can aid in the determination if the wood had been left to dry sufciently. Use
the directions from the moisture meter to ensure the moisture content of the wood is less
than 25 percent.
The most efcient preparation will result in a wood moisture content of 17 percent to 25
percent. If the moisture content is more than 30 percent a signicant amount of recoverable
heat will be utilized in “boiling” off the water in the wood which escapes as steam. This loss
will accelerate as the moisture content increases. Wood that is too dry will com-bust too
rapidly, thereby increasing heat and fuel loss out of the stack.