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11. TROUBLE SHOOTING
PROBLEM
Heating inefficient during the first
combustions. Lack of draft.
Furnace burns well, warm air plenum
is very hot by there is not much heat
coming out in the room.
Furnace consumes a lot of wood.
Fan start-up is too slow.
A lot of creosote, moderate heat
output.
Furnace heats a lot but the warm air
plenum does not get hot.
FOR, INSTALLATION OF A CENTRAL HEATING VENTILATION SYSTEM, IT IS HIGHLY
RECOMMENDED TO CONSULT A HEATING SYSTEM VENTILATION SPECIALIST.
N.B.: STOVE BUILDER INTERNATIONAL INC. IS NOT RESPONSIBLE FOR POOR
APPLIANCE PERFORMANCES, DUE TO IMPROPER INSTALLATION
CAUSES
Improper adjustment of the
barometric damper (opened too
wide). Chimney flue restriction (too
o
long. 90
elbows)
Improper installation of the ducts,
low static pressure, unbalanced
system (too many warm air outlets
and not enough cold air inlets).
The thermostat which controls the
damper is continuously activated or
is too close to a source of cold air.
Damper not properly adjusted.
House not insulated enough. Ash
drawer is not tightly closed. Furnace
too small for the surface to be
heated. Unbalanced ventilation
system, very little heat where the
thermostat is located.
Fan "ON" setting too high. Return air
is too cold (temperature lower than
65 degrees). Limit control not well
located on the furnace.
Wet wood, lack of draft. Barometric
damper not properly adjusted.
Sooted up chimney.
Wet wood or low grade wood. No
static pressure. Unbalanced
ventilation system.
IMPORTANT NOTE
27
SOLUTIONS
Adjust the damper, minimize the
smoke pipe length and use 45
elbows.
Rearrange the ducting to respect the
minimum static pressure of 0.20 in.
w.c.
Relocate the thermostat. Adjust the
chain that links the damper to the
servo-motor. Rebalance the
ventilation system in order to
increase the air flow in the room
where the thermostat is located.
Lower the temperature starting point.
Usually, the limit control is set at 150
degrees, we can under certain
conditions, reduce this temperature.
Reduce the fresh air flow. Relocate
the limit control.
Use dry wood. Adjust the barometric
damper. Clean the chimney, flue
pipe and the furnace exchangers.
Use dry wood. Rearrange the
ventilation system correctly.
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