Nature's Comfort NC-40 Installation And Operation Manual - page 20
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are acceptable and normal.
Do not abuse the glass by striking or slamming the door. If the glass becomes cracked in any area, the unit must be shut
down and the glass replaced. Do not attempt to operate the stove with broken glass. Replacement parts must be
purchased from your dealer or Nature’s Comfort. Nature’s Comfort is not liable for glass purchased independently.
To replace glass, refer to the viewing door parts list and diagram later in this manual for the following procedure:
1. Wear leather gloves (or any other gloves suitable for handling broken glass) and safety glasses. Carefully
remove any loose pieces of glass from the door frame. Open door and remove gasket by pulling firmly with
pliers.
2. Remove all fasteners that are under the gasket, take off gasket frame and glass retainers and remove remaining
glass pieces. Dispose of all broken glass properly.
3. Inspect door gasket and glass gaskets that are between door frame and glass. Replace if necessary.
4. Glass dimensions are:
(1) 11” x 14” (280mm x 350mm) & (2) 5” x 14” (127mm x 350mm) high temperature
ceramic glass that is 0.177” (4.5mm) thick. Glass part numbers are: 5822-06-01 and 5822-06-02. DO NOT USE
SUBSTITUE MATERIALS FOR ANY PART OF THIS STOVE.
5. In the following order, install glass gaskets, glass, retainers and gasket frame. Secure with fasteners previously
removed. Do not over tighten as too much stress can crack glass.
6. Install door gasket with high temperature silicone sealant. Adjust hooks on door latches to ensure proper
sealing.
See viewing door detail later in this manual for the order in which the parts are to be re-installed after removing.
Gaskets
Check that the gasket is complete and in the correct position to seal properly. The rope gasket around the front door may
require replacing every two years. Install new rope gasket with high temperature silicone caulk/sealant.
IMPORTANT: IMPROPER GASKET MAINTENANCE, INCLUDING FAILURE TO REPLACE DAMAGED OR WORN
GASKETS CAN CAUSE AIR LEAKS RESULTING IN SMOKE LEAKAGE.
Carbon Removal
During normal operation carbon from the combustion of pellet fuel will tend to build up on the tip of the auger, on the wear
plate and sides of the burn pot, and at the end of the mouth of the feed tube. It is essential that this residue be removed to
ensure trouble free operation of the unit. To remove this carbon, simply scrape it off using the blade of a flat tipped
screwdriver or similar instrument.
Annual Cleaning
When not using the unit for a long period of time, it should be cleaned completely. Shut down stove and allow to cool.
Perform daily, weekly and monthly cleaning procedures. It is especially important to clean the convection blower, exhaust
blower, intake pipe, venting pipe and underneath the stove.
Vermiculite Board: Remove the side vermiculite fire boards first by lifting the clips off the top, lift slightly and pull the
bottom out of the holder and then slide down. The back piece can now also be removed. Clean with a brush and
re-install.
Blowers: Remove the convection and exhaust blowers and clean thoroughly with a brush. Place a few drops of bearing
oil on both ends of the blower bearings.
Auger: Empty the hopper of pellets and remove the bracket that holds the auger assembly in place. Clean the auger and
auger channel and drop chute.