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Gaskets
Gaskets are used at strategic positions when building the
Harman Oakwood for controlling the path that incoming
and outgoing air and gases take through the stove. You
must check these gaskets from time to time, and replace
them when necessary. The gaskets are made of fiberglass
of different sizes (obtainable from your Harman dealer)
and some are fixed in place with a high temperature stove
gasket cement. To change a gasket, first remove the worn
fiberglass and clean the area with a wire brush. Also clean
any other surfaces that come into contact with the gasket.
Place a small bead of cement in the area under the gasket if
required, then press new gasket material into the channel;
do not overlap the ends. Seat the gasket firmly by apply-
ing pressure when possible; for example, after changing
the door gasket, close the door. Allow the cement to dry
before using your stove.
Gaskets are located:
•
On the doors to provide airtight closure.
•
Between the damper and the damper frame.
•
On sides between top and bottom plates.
•
Inner front to air wash.
•
Rear cover
•
Rear housing
Damper Ramp Adjustment
After the stove has been in operation for awhile, the
damper gasket may compress and allow the damper handle
to move from the open to the closed position without the
added ramp tension needed to keep the damper held in the
closed position.
To adjust the ramp, the stove MUST be allowed to go
out and cool down.
•
After the stove has cooled off, remove the stove pipe
from the stove collar and close the damper.
•
Using a flashlight, look into the collar. About midpoint of
the damper plate on the backside you will see the adjust-
ment bolt for the ramp tension.
•
You will need (2) 7/16 " wrenches. Use one to hold the
bolt still while using the other to loosen the nut.
•
Turn the bolt inward (clockwise facing the head) ap-
proximately 1/4 turn and retighten the locknut.
•
Now open and close the damper to check for proper
tension on the damper lever while moving into the closed
direction.
•
If the tension is incorrect, readjust the bolt.
Harman Oakwood
26
MaIntenanCe
The Chimney System
Creosote
When wood is burned slowly, it produces tar and
other organic vapors, as well as soot, which combine with
expelled moisture to form creosote . The creosote vapors
condense in the relatively cool chimney flue (associated
with a slow burning fire). As a result, creosote accumu-
lates on the flue lining. When ignited, this creosote can
result in an extremely hot fire.
The FireDome on the Oakwood cuts creosote to almost
nothing when properly burned with dry seasoned wood.
The chimney should be inspected at least once every
two months during the heating season to see if any creo-
sote build-up has occurred. Checking your chimney and
chimney connector more frequently, especially while
you are getting used to your stove, is recommended. To
inspect this system, let the stove cool. Using a flashlight
and mirror, check the interior of the chimney connector,
and the chimney itself. If a significant layer of creosote or
soot has accumulated (1/8" or 3 mm) it should be removed
to reduce the risk of a chimney fire.
To clean deposits from the surface of the connector,
use a stiff wire brush after dismantling the connector as-
sembly. To clean the chimney, use a specially designed
brush sized to fit your particular flue opening, or call an
established chimney cleaning service.
At the end of each heating season, perform a thorough
examination of your chimney system, and have it cleaned
and repaired as necessary.
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