New Buck Corporation 91 - Manual (Page 24)

8. Cleaning the catalyst with plain water can reduce build-up of the catalyst-retarding chemicals. Nothing but a
soft brush, low pressure air or plain water should be used to clean a catalyst. The ceramic unit is fragile in
comparison to the rest of the stove, so it should be handled with care. A soak in warm or hot (not boiling)
water for 20 minutes is ideal. Then, allow the unit to cool at room temperature and rinse under medium
pressure under a faucet. Allow the unit to thoroughly dry before reinstalling it or you will damage it. Finally,
reinstall the unit. A cleaning once every year is sufficient for most users. Clean it when you have your flue
system cleaned.
CATALYST REPLACEMENT (Off-Season Replacement Recommended)
1. Spread a drop cloth in front of the stove.
2. Open the door and clean out any ash.
4. Using penetrating oil, generously lubricate the eight (8) bolt threads holding the catalyst housing in place.
Allow oil to penetrate.
5. Using a 9/16" wrench or 9/16" socket, loosen the eight (8) nuts and remove the catalyst housing (drop down)
and place in a suitable work area. BE CAREFUL removing the 8 nuts. If you break the bolt, you will have to
drill out the bolt (difficult) and wait for your dealer to order one! You do not want this to happen during the
cold weather!
6. Using needle nose pliers, grasp the front edge of the stainless steel “cans” which houses the catalytic element
and pull upward. Reposition pliers to another position and pull upward. Repeat procedure until the catalyst
can be removed from the housing.
7. Using a small putty knife or scraper, remove any gasket that may have adhered to the catalyst housing.
8. Now, obtain the new catalysts and wrap the stainless steel “can” with interam gasket and tape ends together
using scotch tape or masking tape. IMPORTANT: BEFORE STARTING TO REPLACE CATALYST,
contact your dealer and order the INTERAM gasket and the CATALYST HOUSING Gasket. Gaskets not
covered under warranty. It may take your dealer several days to receive the gaskets.
9. Insert the new catalysts into the catalytic housing and push down until they are seated on the top of the
stainless steel wire mesh supports.
10. Reinstall the catalyst housing into the stove and secure in place with the bolts.
11. The stove is now ready for use.
DOOR GASKET REPLACEMENT (Cold Heater)
To replace deteriorated gaskets, the following steps must be taken to ensure proper installation of gaskets.
1. Obtain the proper gaskets and silicone glue from your local dealer.
2. Using pliers, remove any worn and deteriorated gaskets.
3. Using a scraper, wire brush, and sandpaper or steel wool, clean glue and gasket residue from the door frame.
4. Measure and cut gaskets to length. Care should be taken not to stretch the gaskets. What you want is a full
and loose gasket weave after attachment to the framing.
5. Obtain the silicone glue and run a 3/16" bead inside the door frame.
6. Obtain the gasket (s) and place in the gasket channel areas. Use a technique which assures that the gasket is
applied in a loose like manner. DO NOT STRETCH GASKETS.
7. After gasket (s) are applied to the glue, use your finger and go over all the gasket gently pressing the gasket
to the channel. Use the same pressure against the gasket so that the final result is an evenly applied gasket.
8. Leave door open and allow at least one hour for the glue to dry.
9. Once gaskets are checked, the heater is ready for use.
10. This should be done annually. Allowing gaskets to deteriorate can cause over-firing and shorten the burn
time.