Vermont Casting 1920 The Chimney System, Gasket Replacement, Adjust the Door, Creosote

Aspen Woodburning Stove

Gasket Replacement

Your Aspen uses rope-type fiberglass gaskets to make a tight seal between some parts. With use, particularly on those parts that move, gaskets can become brittle and compressed and can begin to lose their effective- ness. These will need periodic replacement.

The sizes of replaceable gasket are listed below, along with their applications.

Gasket Diameter...	...And the Parts it Seals
5/16” Round	Flue Collar Gasket
3/8” Round	Top
7/16” Round	Door Gasket
1/2” Flat, two	Vertical Gasket for glass
1/2” Flat	Horizontal Gasket for glass

Wait until the fire is out and the stove has cooled. Be sure to follow the standard safety procedure for working with dusty materials: Wear safety goggles and a dust mask.

Step 1. Remove the existing gasket by grasping an end and pulling firmly.

Step 2. Use a wire brush or a screwdriver to clean the channel of any remaining cement or bits of gasket. Remove stubborn deposits of cement with a cold chisel if necessary.

Step 3. Determine the correct length of the appropri- ate-sized gasket by laying it out in the channel. Allow an extra 1-2” (25-51 mm), and mark the spot to be cut.

Step 4. Remove the gasket from the channel, place it on a wood cutting surface, and cut it at the marked spot with a utility knife.

Twist the ends slightly to discourage the gasket from unraveling.

Step 5. Lay an unbroken 1/8” (3 mm) bead of gasket cement in the newly-cleaned channel.

Step 6. Starting at one end, press the gasket into the channel.

Ensure a good joint where the gasket meets before trimming any excess. Do not overlap the gasket ends or leave ends with ragged edges.

Step 7. Press the gasketed part firmly against its normal mating surface to seat the gasket evenly in its channel. Close and latch the door to do this; close the door on a piece of waxed paper to keep the cement from migrating onto the non-gasketed part, or tap other parts

Step 8. Clean excess cement from around the channel. Let the cement that holds the new gasket dry thor- oughly.

Adjust the Door

The door latch may need adjustment as the gasket material compresses over time. The latch engagement may be tightened by removing the shim washers that are under the Latch Plate. (Fig. 33) Remove only one pair at a time. When a tight engagement can no longer be achieved with no shim washers in place, the entire door gasket should be replaced. Use only CFM Corpo- ration part no. 700-0910.

ST267

Shim Washers

Latch Plate

ST268

Fig. 33 Remove shim washers to tighten latch engagement.

The Chimney System

Creosote

Your Aspen is designed to reduce creosote buildup significantly. However, regular chimney inspection and maintenance must still be performed. For safety, good stove performance, and to protect your chimney and chimney connector, inspect your chimney and chimney connector on a regular schedule. Clean the system if necessary. Failure to keep the chimney and connector system clean can result in a serious chimney fire.

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