Hearthstone Quality Home Heating Products, Inc
® Green Mountain Insert 70 (Model 8450)
29
Maintenance
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 fireplace insert with the primary air control
fully open for 35 - 45 minutes daily to burn out
creosote deposits from within the fireplace insert and
the venting system.
After reloading with wood, burn the fireplace insert
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 fireplace insert
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
fireplace insert.
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 fireplace insert use. If the door
seal leaks, a new gasket will ensure a tight seal and
improve fireplace insert 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
fireplace insert.
G
LASS
The glass used in our fireplace inserts is actually not
plain glass, but a tough, clear ceramic material
capable of operating at temperatures up to 2300° F.
Do not operate the fireplace insert 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 white ash. Rub the inside of
the glass with a circular motion. When all the
deposits are removed, clean up 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 wood fireplace insert.
Replacement glass is available through your local
dealer.
