Hearthstone Quality Home Heating Products, Inc
® Green Mountain 40 (Model 8640)
28
C
REOSOTE
F
ORMATION
&
R
EMOVAL
When wood burns slowly at low temperatures, it may
produce tar and other organic vapors, which
combine with expelled moisture to form creosote.
These creosote vapors condense in the relatively
cool chimney flue of a slow-burning fire. As a result,
creosote residue accumulates on the flue lining.
When ignited, this creosote makes an extremely hot
fire, which may damage the chimney or even destroy
the house. When burning wood, inspect the chimney
connector and chimney at least once every two
months during the heating season to determine if
there is a creosote buildup.
If a creosote build-up occurs, inspect the stovepipe
connector and chimney more often, at least monthly
during the heating season to monitor the
accumulation. If a creosote residue greater that 1/4"
(6 mm) accumulates, remove it to reduce the risk of
a chimney fire.
P
REVENTION
Burn the stove with the primary air control fully open
for 35 - 45 minutes daily to burn out creosote
deposits from within the stove and the venting
system.
After reloading with wood, burn the stove with the
primary air control fully open for 15 to 20 minutes.
This manner of operation ensures early engagement
of the secondary combustion system that minimizes
creosote buildup in the chimney.
If your glass always remains dirty, your operating
temperatures are too low or your wood is wet;
therefore, there is a higher risk of creosote buildup.
Inspect the venting system at the stove connection
and
at the chimney top. Cooler surfaces tend to
build creosote deposits faster, so it is important to
check the chimney at the top (where it is coolest) as
well as from the bottom near the stove.
C
LEANING
Remove accumulated creosote with a cleaning
brush specifically designed for the type of chimney
in use. We recommend you use a certified chimney
sweep to perform this service. Contact your dealer
for the name of a certified chimney sweep in your
area (your dealer may be a certified sweep!).
We recommend that before each heating season
you have the entire system professionally inspected,
cleaned and repaired, if necessary.
G
ASKETS
Replace door gasket material every two to three
seasons, or whenever it becomes deteriorated or
loose, depending on stove use. If the door seal
leaks, a new gasket will ensure a tight seal and
improve stove performance.
We recommend you only use Hearthstone
replacement gaskets when you need to replace your
door gasket. Contact your dealer for a gasket kit that
includes instructions, and the gasket for your stove.
G
LASS
The glass used in our stoves is actually not plain
glass, but a tough, clear ceramic material capable of
operating at temperatures up to 2300° F. Do not
operate the stove with a broken door glass. Do not
abuse the front door by striking or slamming.
When necessary, clean the glass. For the inside
surface of the glass, we recommend using a damp
paper towel dipped in gray ash. Rub the inside of the
glass with a circular motion. When all the deposits
are removed, clean up with window cleaner or with
commercial stove glass cleaners, which are
available from your local dealer. Use this type of
cleaner for the outside surface as well. Never
attempt to clean the glass while the fire is burning or
while the glass is hot. Remove deposits by following
the instructions provided with the cleaner. Wipe the
cleaner off with a soft cloth, or black & white
newsprint.
Important:
scratching or etching the glass
will weaken the integrity of the glass. Do not
use a razor blade, steel wool, or any other
abrasive material to clean the glass. Use a
cleaner specifically manufactured for
woodstoves only.
The front door glass is a ceramic, thermal shock-
resistant glass, made specifically for use in
woodstoves. Do not use any replacement glass
other than the ceramic glass manufactured and
supplied for use in this woodstove. Replacement
glass is available through your local dealer.
Replace the door glass immediately if broken or
chipped. Contact your local dealer for replacement
glass. The glass kit includes instructions and
everything needed for the repair. If you replace the
glass yourself, wear work gloves and safety glasses.
Required Glass Kit:
PN: 96-58405.
