Use And Care Manual

SuperiorFireplaces.us.com 127003-01_C10
APPENDIX A
Draft Requirements
Your wood-burning appliance is dependent
upon a properly functioning chimney for
optimum performance. It is important to
match the wood-burning appliance to the
chimney. The chimney has two functions:
1. It draws combustion air into the appliance
(without air, no fuel will burn) and
2. It exhausts combustion by-products.
Your new appliance is what is known
as a “natural draft” appliance.
The appliance depends solely on the nat-
ural draft of the chimney system to draw
combustion air into the unit. Draft is the
force that moves air from the appliance
up into the chimney. The amount of draft
in your chimney depends on the length
of the chimney, local geography, nearby
obstructions and other factors. Too much
draft may cause excessive temperatures
in the appliance (overfiring). Slow or inad-
equate draft equals poor combustion and
possible smoking problems. The following
are some conditions that may contribute to
poor chimney draft:
1. A chimney too large for your appliance.
2. A chimney with not enough height to
produce adequate draft.
3. A chimney with excessive height (this
may allow exhaust to cool too much
before exiting, which will stall the rate
the exhaust exits).
4. Offsets in the venting system are too
restrictive (see Chimney Guidelines).
Inadequate draft will cause the appliance
to leak smoke into the room through the
wood-burning appliance and the chimney
connector joints.
Excessive draft may cause an uncontrol-
lable burn or a glowing red appliance or
chimney part.
Overfiring Damage - If the appliance or
chimney connector glows, you are overfir-
ing. Other symptoms may include: Cracking,
warping or burning out of components,
plated accessories may turn color, appliance
glass may develop a haze, which will not
Selecting the Proper Venting System
The appliance is merely one component of a
larger system. The other equally important
component is the venting system. This is
necessary for achieving the required flow
of combustion air to the fire chamber and
for safely removing unwanted combustion
by products from the appliance.
If the venting system’s design does not
promote these ends, the system may
not function properly. Poorly functioning
venting systems may create performance
problems as well as be a safety hazard. A
draft test should read greater than .04’
W.C. (inches water column) and less than
.08” W.C. As per NFPA-211 standard, the
installer must take into account all varia-
bles within the installation and install the
appliance in such a manner that satisfies
the draft requirements of the appliance.
WARNING
Neither the manufacturer nor
the seller warrants “smoke
free” operation nor are we
responsible for inadequate
system draft caused by mechan-
ical systems, general construc-
tion conditions, inadequate
chimney heights, adverse wind
conditions and/or unusual envi-
ronmental factors or conditions
beyond our control.
come off with cleaning.
Overfiring of a appliance is a condition where
excessive temperatures are reached, beyond
the design capabilities of the appliance. The
damage that occurs from overfiring is not
covered under the manufacturer’s limited
warranty.
Also see Troubleshooting on Page 12.