Vermont Casting 4322 User Manual
Gasket Kit #4322
Installation Instructions
for use on the
Defiant Stove
Vermont Castings’ stoves use a rope-type gasket to
make a seal between some parts. With use, this gasket
can become compressed and begin to lose its effectiveness. It should then be replaced.
This kit includes materials to re-gasket a Model #1910
or #1945 Defiant stove. This stove model has glass
panels in the front doors. This kit is not appropriate for
the 1975-1988 model Defiant stoves which do not have
glass panels in the front doors.
Contents
• 3.5’ of 5/16” Glass Fiber Gasket for the damper
• 7’ of 3/16” Glass Fiber Gasket (Glass)
• 4¹⁄₂’ of 5/16” Wire Reinforced Glass Fiber “Armaseal”
for the griddle
• 10.9’ of 3/8” Glass Fiber Gasket for the ash door and
main doors
• 3 oz. Tube of Gasket Cement
Tools Required
Phillips screwdriver
Utility knife or scissors
Wire brush
Small cold chisel
Rubber mallet, or hammer and wood block
Flashlight or droplight
Installation Precautions
Be sure the fire is out and the stove has cooled before
replacing the gasket, and be sure to follow the standard
safety procedure for working with dusty materials: Wear
safety goggles and a dust mask.
Installation Instructions
Gaskets provide a tight seal between moving parts.
Eventually these gaskets will become compressed and
will no longer seal properly. Replacing the gaskets will
improve performance. For a guide to each gasketed
area, refer to the following sections and illustrations.
Regardless of its location, replacing a gasket involves
these steps:
1. Remove the existing gasket by scraping it out of its
channel with an old screwdriver.
2. Clean the gasketing channel with a wire brush. Be
careful with adjacent surfaces, especially if they are
enamelled. Remove any stubborn deposits with a
small cold chisel. Clean both mating surfaces thoroughly to bare metal.
3. Cut the appropriate size gasket to length, allowing
an extra inch.
4. Knead the tube of cement before opening, to mix the
contents thoroughly.
5. Place an unbroken 1/8” bead of gasket cement in
the channel. Do not use too much cement as it may
saturate the gasket; the gasket must remain soft
and resilient. One tube of cement will produce a 1/8”
bead sufficient for all the gasket in this kit.
6. Starting with one end, press the gasket into the
cemented channel. If the gasket goes around and
meets itself, ensure that you have a good joint before trimming the excess gasket. Do not overlap or
leave ragged edges.
7. Seat the gasket by placing it firmly against its normal
mating surface. A slip of waxed paper between the
gasket and its mating surface will help keep the cement from traveling through the gasket and sticking
to the mating surface. Clean away any excess cement.
8. With enamel stoves, be careful to keep cement off
the enamel finish. If cement does accidentally get on
the enamel, wash it off immediately with warm water.
9. Allow to dry. Be sure to remove the waxed paper!
10. If you have questions, refer to the Defiant Owner’s
Manual, or a Vermont Castings Dealer.
Griddle
Remove the griddle. Pull off the old gasket and clean
the channel with the wire brush. Set the steel reinforced
5/16” gasket in the griddle channel and mark the correct length. Place the gasket on a wood cutting surface
and trim with a utility knife or scissors. Twist the ends
slightly to prevent unraveling. Place a continuous 1/8”
bead of gasket cement in the channel and press the
gasket into place. Replace the griddle and compress
against the gasket by striking around the edges with
the rubber mallet or hammer and block of wood. Do not
strike the stove top.
2003144 8/08 Rev. 6
Gasket
KT314
Fig. 1 Griddle gasket.
Ash Door
You may find it helpful to remove the ashpan bracket
from the inside ashdoor; use a 7/16” wrench for this.
Remove the old gasket and clean the gasket channel
thoroughly. Clean the ash door and mating edges of
the ash drop. Cut the required length of 3/8” diameter
gasket plus one inch. Place a continuous 1/8” bead
of gasket cement in the channel and press the gasket
into place, trimming the excess carefully. Replace the
ashpan bracket if you removed it. Close and latch the
ash door to seat the new gasket.
Gasket
Ashpan Bracket
Mounting Points
KT315
Fig. 2 Inside view of ashdoor (ashpan bracket removed).
Front Doors
Carefully remove the doors and place them face down
on a padded surface. Note where the gasket ends are
trimmed so you can make an exact replacement.
1. Pull out the old gasket and clean each gasket chan
nel with the wire brush.
2. Lay the new 3/8” diameter fiberglass in place and
trim it to length.
3. Place a continuous 1/8” bead of gasket cement in
the gasket channel and press the trimmed gasket
into place. Remove any excess cement that may
have squeezed out around the gasket.
4. If you are also replacing the glass gasket, go on to
the next section. If you are not dealing with the glass
gasket, replace the doors on the stove and latch the
doors to seat the gasket.
Inside View of
Front Doors
Outside view of
left door showing
gasket on outside
of the door.
KT316
Fig. 3 Door perimeter gasket.
Glass
The Defiant stoves use glass panels with an infrared
reflective coating. Since the coating goes on the room
side of the door, there is a “left” and a “right” pane. Be
sure to mark which is which. In manufacturing, the Defiant has a flat die-cut gasket between the glass and the
door. You will replace this with a 3/16” diameter round
gasket.
1. Remove the door assemblies and place on a padded
surface, inner side up.
2. Remove the screws and retainer clips from both
doors. Pull off the old glass fiber gasket and clean
the support ledge thoroughly.
3. Cut the required replacement gaskets, allowing a
little excess. Place a continuous 1/8” bead of cement
on each support ledge and press the gaskets into
-
place, trimming the excess carefully and removing
any excess cement.
4. Clean only the inside of the panes.
5. Center the glass on the gasket. Be sure to place the
pane with its coated side facing out into the room.
6. Replace the retainer clips and snug down the
screws. Do not overtighten the screws, since the
glass must move a little under heat.
7. Replace the doors on the stove.
Damper
The Defiant’s damper mechanism includes an adjusting screw visible on the face of the damper when the
griddle is open. Be sure the damper is adjusted properly before you decide to replace the gasket. Test the gasket by closing the damper on a group of narrow slips of
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2003144
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