24
PROBABLE CAUSE
not receiving an adequate
amount of oxygen.
• Inadequate insulation in
the home.
• Your furnace is of inad-
equate size for you home.
• Slide cover on draft
blower “closed”.
• Fueling furnace with wet
or unseasoned wood.
• Use of highly rosined
wood, such as pine.
• Under-firing the furnace
has caused low flue gas
temperature.
SUGGESTED REMEDY
airtight. We recommend in-
stalling an aperture to the
outside consisting of a mini-
mum of twelve square
inches or 4” round.
Provide additional insulation.
Consult a professional o de-
termine correct sizing.
Open slide cover.
See Page
10.
Completely avoid using if at
all possible. If circumstances
necessitate the use of wet
or unseasoned wood, then
fuel the furnace with smaller
loads. This will call for the
thermostat to call for heat
more often, which will initiate
the running of the draft
blower. Consequently, the
fires will be hotter, thereby
reducing the accumulation
of creosote.
Completely avoid using if at
all possible. If hardwoods
are not available then fuel
the furnace with smaller
loads. This will cause the
thermostat to call for the
heat more often, which will
initiate the running of the
draft blower. Consequently,
the resultant fires will be
hotter, thereby retarding the
accumulation of creosote.
Install a flue gas thermom-
eter and maintain stack
temperatures between
300° and 400° F.
TROUBLESHOOTING
PROBLEM
13. Home does not
achieve comfortable tem-
perature,
continued
14. Rapid accumulation
of creosote in furnace
and flue.
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