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USSC 7
FLOOR PROTECTION
The Multifuel Heater may be installed on a combustible oor, with proper oor protection, or on a masonry hearth.
The hearth or noncombustible oor protector must extend a minimum of (6) inches (152mm)in front and (6) inches
(152mm) from each side of the unit.
INSTALLATION REQUIREMENTS
SHELLED CORN (Dry, preferably corn with 11- 12% moisture content)
• Corn must contain less than 14% moisture content. Wet corn will rapidly deteriorate heater components,
reduce efciency and void all warranties. Purchase a moisture tester if in doubt.
• Corn must be clean and free from debris. Never burn corn right from the eld. Damage caused by dirty corn is not
covered by the product warranty. Ask for clean ltered bagged corn only. Stalk parts, excessive nes and cob rem-
nants will clog the auger. Check your corn for foreign objects.
• NEVER BURN SEED CORN IN YOUR Heater. Seed corn is treated with chemical pesticides that are harmful or
fatal if swallowed, therefore, seed corn is dangerous to have in the house, especially where children can reach it.
• Never burn “Deer Corn.” It frequently contains molasses, sugars and salts.
• Store your corn supply in a dry place and keep bags or container sealed to prevent your corn from absorbing excess
moisture. Test the moisture content periodically to ensure the proper dryness.
• There are many varieties of corn grown around the world. Each variety has unique characteristics including the shape
and size of the kernel. Your heater will burn more consistently with a small to midsize kernel corn. If the kernel size
of the corn varies greatly or if you switch sources frequently, you will get a less consistent burn. Therefore, purchas-
ing corn from the same source will help achieve a more consistent burn. DO NOT USE CORN WITH A HIGH WAX
CONTENT!
WOOD and BIOMASS PELLETS
• As with corn, be consistent in your pellet supplier. Pellets will vary in content and burn characteristics from supplier
to supplier. A consistent supply of pellets will result in a more consistent and efcient burn.
• Check your pellets for foreign objects. Your heater warranty will not cover damage done to your heater due to foreign
objects in the fuel supply.
• Store your pellets in a dry place to prevent them from absorbing added moisture.
• To decrease sawdust buildup, the hopper and auger tube will need to be vacuumed out after every 6-8 bags of pellets
or more often if the pellets are poor quality. The hopper should be empty of fuel when this is performed. You may
have to screen each bag of pellets if sawdust becomes a problem.
• Wood Pellets vary in size and ash content from less than 1% to 3% or more. Your heater will burn more efciently
with small to midsize pellets (Preferred pellet size is 1/4” diameter x 1” length). Low ash content pellets will allow
you to burn the heater longer between cleanings. Only wood pellets manufactured to the Pellet Fuel Institute (P.F.I)
standard for residential pellets fuels are recommended. Performance will suffer if nonstandard pellets are used. Consult
your local American Harvest dealer for more information on approved wood pellet fuel.
CAUTION:
DO NOT PLACE SUCH FUELS WITHIN THE SPACE HEATER’S
INSTALLATION CLEARANCES OR WITHIN THE SPACE REQUIRED FOR FUELING AND
ASH REMOVAL.
BURNING SOLID FUELS continued...