Harman P43, User Manual

30

P43 Pellet Stove

Fuel Specifications

Fuel and Fuel Storage

Pellet fuel quality can fluctuate from manufacturer to 

manufacturer, and even from bag to bag. 

Hearth & Home Technologies recommends using only 

fuel that is certified by the Pellet Fuels Institute (PFI).
Fuel Material

•  Made from sawdust and/or other wood by-products

•  Shelled field corn (when mixed with wood pellets)

•  Source material typically determines ash content
Higher Ash Content Material

•  Hardwoods with high mineral content

•  Bark and leaves as source material

•  “Standard” grade pellets, corn and other biomass
Lower Ash Content Material

•  Softwood; pine, fir, etc.

•  Materials with lower mineral content

•  “Premium” grade pellets
Shelled field corn

•  Must be 15% moisture content or less

•  Must be clean and free of debris

•  Must be mixed with wood pellets. (Up to 50%)

•  Stalk parts, excessive fines and cob remnants may 

cause feed system jams or blockage

CaUTION! Do not burn fuel that contains an addi-

tive; (such as soybean oil) 

•  May cause hopper fire

•  Damage to product may result

Read the list of ingredients on the packaging. If you are 

buying field corn, the only ingredient listed should be 

field corn.

WaRNINg! Risk of Chemical Poisoning!

Do 

NOT

 burn treated seed corn

•  Chemical pesticides are harmful or fatal if swallowed

•  Burning treated seed corn will void the product war-

ranty

Clinkers

Minerals and other non-combustible materials, like sand, 

will turn into a hard glass-like substance when heated. 

Trees from different areas will vary in mineral content. 

For this reason, some fuels will produce more clinkers 

than others.
Moisture

Always burn dry fuel. Burning fuel with high moisture 

content takes energy to dry and tends to cool the appli-

ance thus, robbing heat from your home. Damp pellet 

fuel could turn back into sawdust which does not flow 

properly through the feed system.

Size

•  Pellets are either 1/4 inch or 5/16 inch (6-8mm) in 

diameter

•  Length should be no more than 1-1/2 inches 

(38mm)

•  Pellet length can vary from lot to lot from the 

same manufacturer 

Performance

•  Higher ash content requires more frequent main-

tenance.

•  “Premium” grade pellets will produce the highest 

heat output.

•  Burning pellets longer than 1-1/2 inches (38mm) 

can cause inconsistent feeding and/or ignition.

We recommend that you buy fuel in multi-ton lots 

whenever possible. However, we do recommend try-

ing different brands prior to purchasing multi-ton lots, 

to ensure your satisfaction.

CaUTION!

 Tested and approved for use with wood 

pellets and a mixture of shelled field corn and wood 

pellets ONLY. Burning of any other fuel will void your 

warranty.

When changing from wood pellets to a corn/pellet 

mixture, the FEED ADJUSTER will likely need adjust-

ed to a lower setting. When under maximum demand, 

ensure there is no unburned fuel being pushed into 

the ash pan.
Storage

•  Wood pellets should be left in their original sealed 

bag until ready to use, to prevent moisture.

•  Shelled corn should be stored in a tightly sealed 

container to prevent moisture and to deter pests

•  Do not store fuel within the specified clearance ar-

eas, or in a location that will interfere with routine 

cleaning and maintenance procedures.

cautiOn

Tested and approved for use with wood pellets 

and a mixture of shelled field corn and wood pel-

lets ONLY. Burning of any other fuel will void your 

warranty.

Hearth & Home Technologies is not responsible for 

stove performance or extra maintenance required 

as a result of using fuel with higher ash or mineral 

content.

nOtice