1
SoLUtIoN
If you have to use wet wood, make loads smaller and burn them
hotter.
Avoid using if possible.
Measure draft with gauge. Should be set at .03 water column.
Smaller and hotter fires.
Check page 12 of this manual for proper installation of outside
combustion air to the furnace room. The air that goes out the chim-
ney in the form of smoke must be replaced with fresh outside air.
Smaller loads of wood and hotter fires. Stack temps should main-
tain minimum of 300º.
Never use uninsulated pipes for chimneys. If installed on the out-
side of the house, INSULATE!
Check chimney top to bottom.
SoLUtIoN
Replace with a larger unit. In colder weather your furnace will turn
on once a day, one tank of fuel oil will last for a long time.
Reinsulate!
Check installation drawings and/or consult your heating service
provider.
Check settings; refer to operation on proper settings and adjust
accordingly. If needed to set higher, never exceed 180º on — 150º
off.
SoLUtIoN
Measure draft with gauge. Should be set at .03 Water Column.
Relocate. CAUTION: Always open smoke pipe damper when load-
ing.
Relocate Jack closer to chimney.
Install outside combustion air to furnace room.
Excessive creosote build-up. A small reminder, whatever kind
of fuel you burn, there is some kind of residue build-up on the
furnace and chimney. Same with wood no matter how good
the conditions...
PoSSIBLE CAUSE
The use of wet, frozen or unseasoned wood
The use of soft wood, particularily those of high resin content
such as plywood or blandex with glue
Poor natural draft or an obstruction in the stove pipe or chim-
ney flue
Too long of burning times
Inadequate amount of oxygen supplied to the combustion
chamber
Low fire or flue gas temperatures
Uninsulated stove pipe or chimney flues, especially if con-
struction is exterior to the house
Air leaks in the stove pipe or chimney
Not getting heat in the home...
PoSSIBLE CAUSE
Unit may be too small for your home; check specifications
chart
Improper insulation in home, allowing heat to escape
Improper hook up to furnace
Fan limit control set too low
Excessive amounts of smoke coming out of loading door
when loading...
PoSSIBLE CAUSE
Improper draft
Chimney cap too close to top of chimney
Too long of run of smoke pipe from Jack to chimney
Negative pressure in home
NotE: Creosote is a tarry liquid or solid coming from distillation of wood during the combustion process. The heavier the build-ups, the
greater chance of a chimney fire.
NotE: No matter how seasoned the wood, no matter how good the draft, you will always get a small amount of soot build-up. It should
be cleaned out before the winter firing and during the mid-winter firing.
Summary of Contents for SUPER JACK SJ125
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