Harman Stove Company DVC500-C Manual page 23

Combustion
Blower
1-10-08332
Draft Motor
3-21-08639
Fig. 28
Fuel
The DVC500 is designed to burn Anthracite
Rice Coal which is approximately 7/16 long and
wide by 3/16 thick. Anthracite coal is considered
either White Ash or Red Ash.
White Ash Coal such as "Blaschak" will have
13 to 14,000 btu's per lb. White ash coal usually
has less ash and will burn longer.
Red Ash coal is usually about 12,000 btu's per
lb. an is higher in volatiles. Higher volatiles makes
the coal easier to light and produces a more yellow
flame. At a very low burn rate the TCP (Tempera-
ture Control Probe) may be activated with Red
Ash coal if the hopper lid is open or leaking. The
TCP senses the temperature of the feeder and feeds
coal if the temperature rises too much. This pre-
vents the fire from reaching the coal in the hopper.
Red Ash Coal may form klinkers (fused together
Motors
Feed Motor
3-20-60906
Distribution
Blower
3-21-22647
ESP Probe
3-20-00744
ash) which may cause grate blockage in severe
cases.
Anthracite Coal can be purchased in bags or in
bulk. If you buy in bulk try to have the coal delivered
before temperatures reach the freezing level. This is
because salt may be added to the coal to keep it from
freezing on the truck. This will not effect burning but
will cause rust and corrosion to form faster.
Some Coal Companies wash there coal better
than others to remove fines, and dirt. This makes
air flow through the coal better and produces less
fly ash.
Good, clean, White Ash Coal is the fuel of
choice, "however" Red Ash Coal will also burn
well.
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