CFM Corporation Winter Warm - Small Insert How to Replace Gaskets, WinterWarm Small Insert

Replacing the Damper Gasket

• Lift and remove the left and right burn plates.

• Two wedges hold the fireback in place. Using a hammer and a block of wood, tap upward on the wedges and remove them.

• Grasp the fireback by its vertical ribs and remove it, together with the throat hood.

• Disconnect the damper linkage from the damper by removing the hex head bolt from the damper tab.

• Remove the two 1/4-20 screws holding the damper housing to the back. The damper and damper housing may now be removed.

WinterWarm Small Insert

How to Replace Gaskets

Your WinterWarm Small Insert uses rope-type fiber- glass 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 effectiveness. These will need periodic replacement.

All of the gaskets used are made of fiberglass. The three sizes of replaceable gasket are listed below, along with their application.

Replaceable WinterWarm Small Insert

Fiberglass Gaskets

Gasket Size	And The Parts It Seals
1/2” (1203564)	Door to the front - 5.6’
5/16” (1203591)	Glass to the door - 5.2’
5/16” (1203588)	Ash door to the front - 4’
......................................	Bypass damper - 2’
......................................	Damper housing - 2.5’
......................................	Fireback - 3’
3/16” (1203556)	Thermostat cover to the left
......................................	side - 1’

To change a gasket, wait until the fire is out and the stove has cooled. Wear protective eyewear and a dust mask. The procedure is the same for all gaskets.

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

2.Use a wire brush or the tip of a screwdriver to clean the channel of any remaining cement or bits of gas- ket.

3.Apply a thin bead of stove cement to the newly- cleaned groove.

4.Place a new gasket into the groove. Wait until you have placed all but a couple inches from the end before you trim the end to an exact fit.

Replacing the Insert’s Door Gaskets

•Remove the door by lifting it straight up from its hinge pins.

•Lay it face down on a padded surface.

•Remove the glass. Follow the instructions for removing and replacing glass which start on page 15.

•Replace gaskets. Follow steps 1-4, above.

•Replace the glass.

•Replace the door.

•Replace the damper gasket.

NOTE: Check the gaskets on the damper housing and fireback while these components are out of the stove. These gaskets seal non-moving parts and are much less subject to wear than other gaskets, but can be replaced if necessary.

•Reverse the procedure to replace the damper, damper housing and fireback.

Damper Housing

and Bolts

Damper	Linkage
Tab and Bolt

Wedge	Wedge
	Throat
	Hood
Burn	Burn
Plate
	Plate

Fireback FP1106

Fig. 17 Remove the parts illustrated above to access the damper.

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