Replacing The Baffle; Eplacing The Refractory Stone And Secondary Riser Assembly - HearthStone 8680 Owner's Manual

9. Some warping or bowing of the catalysts over
time is acceptable, as long as the catalyst
gasket continues to seal. Measure the
catalysts in the middle section – if the
dimensions are outside the range shown in
Figure 20 on the next page, replace the
catalysts.
10. Beginning at one corner, re-install fiberglass
gasket material on the catalysts.
11. Wrap the gasket tape around the catalysts so
it is reasonably tight. Double layer the
material on three sides of the individual
catalyst cartridges as shown in the following
picture.
12. Once the gasket is installed on the catalysts,
gently push the catalysts into the catalyst
opening until the catalysts hit against the
bottom wall of the cavity. Take care to ensure
the gasket is not damaged and position the
three cartridges so that the single layer
Hearthstone Quality Home Heating Products, Inc ®
Figure 20 - Acceptable Catalytic Distortion
28
gasket edges touch one another in the
center.
Single layer ends together
13. Replace the catalyst access door.
14. Heat the stove slowly during your next fire to
allow the fiberglass gasket to properly seat
and seal the catalysts.
R
EPLACING THE REFRACTORY STONE AND
SECONDARY RISER ASSEMBLY
1. Allow the stove and ashes to fully cool.
2. Open the front door of the stove and fully
clean any ash in the firebox
3. Remove the baffle following the instructions
in "Inspecting the Catalysts and
Removing/Replacing the baffle.
4. Remove the side stones one at a time by
tipping them towards the inside of the
firebox from the top.
5. With side stones and baffle removed, the
secondary riser assembly and rear stones
can be lifted up and out of the stove.
6. Installation is the reverse of disassembly.
Make sure that the secondary riser tube is
seated in the pocket at the rear of the
bottom casting.
Green Mountain 80 (Model 8680)