Harman Stove Company TL 300 manual Gaskets, Damper Ramp Adjustment, Creosote

Maintenance

Gaskets

Gaskets are used at strategic positions when building the Harman TL300 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 applying 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.

• 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 adjustment bolt for the ramp tension. (See figure on right.)

• 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) approximately 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.

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 accumulates on the flue lining. When ignited, this creosote can result in an extremely hot fire.

The FireDome on the TL300 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 creosote 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 assembly. 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 the heating season, perform a thorough examination of your chimney system, and have it repaired if necessary.

Loosen nut	Turn bolt inward 1/4
	turn.

20Harman TL300