Vermont Casting 3349 - Manual (Page 22)

22 22
Radiance Natural Vent Gas Heater
20004409
Gasket Replacement
The Radiance Gas Heater uses a ‘tadpole’ type gasket
to seal between the glass panel and the frame. In time,
this gasket can become brittle and compressed and
should be replaced. New gasket is available from your
dealer.
Shut off the gas supply and allow the stove to cool.
Wear safety goggles and a dust mask.
1. Remove the Front, Glass Frame and Glass Panel.
(Figs. 44 & 45) Remove the old gasket. Use a razor
blade, with rounded corners, to separate the glass
and gasket from the frame, and to clean the glass of
any remaining cement or bits of gasket.
2. Determine the correct length of gasket by laying it
out around the edge of the glass. Allow an extra 1 -
2” (25-50mm). Mark the spot to be cut. Use a utility
knife.
3. Starting on a long edge, remove about 6” of the
protective paper strip and apply the flat adhesive
face of the gasket around the outside-facing edge of
the panel. Continue around the panel, applying
about 6” at a time being careful not to stretch the
material. Do not overlap the gasket ends. (Fig. 46)
4. Apply a thin bead of high temperature silicone
rubber sealant along the inside corner of the glass
frame, all around the perimeter. Place the flat
gasketed side of the glass panel back into the steel
frame. Pinch the rounded inside-facing gasket
material to bulk it up.
5. Replace the glass frame and front panel as previ-
ously described.
Inspect the Vent System Annually
Have the vent system inspected annually by a qualified
technician. Shut off the main gas supply before in-
specting the system. Both the inner exhaust pipe and
the outer combustion supply pipe must be checked to
confirm that they are unblocked and in good condition.
Check the Gas Flame Regularly
To ensure that the stove is operating properly, check
the flames periodically to confirm that they match
Figure 47. The flames will be blue during the first 15-20
minutes of operation, and will gradually turn to yellow
after that.
Do not use your stove if the flame pattern differs from
that shown here. Contact your Vermont Castings dealer
or a qualified technician for help.
ST179
Fig. 46 Wrap the gasket material around the outside edge of
the glass.
Fig. 47 Correct flame pattern.
LG157
Red Glow
ST141
Fig. 45 Release the latches to remove the glass frame.