Comfort Bilt HP50S Owner's Manual page 30

maintenance
Maintenance & Cleaning Continued
You can close this damper when the stove is turned off, to prevent cold air from back-drafting into the
room from the exhaust/intake pipes, or if you are experiencing a dirty burn.
Optimal location is set to about 1/2 way open, but feel free to experiment for best results for your
application.
(IMPORTANT) Rear Exhaust Chambers: Every ton (50 Bags) of Pellets Burned or as Needed
In addition to daily and weekly maintenance tasks, the exhaust chamber covers should be removed and the
entire chamber vacuumed thoroughly once every ton (50 bags) of pellets burned or more often depending
on pellet quality.
First, you will need to locate the cover plates to the rear exhaust chambers. These chamber covers are
small, rectangular, metal plates that are affixed with 2 wing nuts or Allen screws.
There are two total chamber cover plates. One on each side of the stove behind the removable side
panels.
Using a slender hose attachment for your ash vacuum, thoroughly vacuum out these chambers top to
bottom. These chambers extend all the way up to the heat exchange tubes near the top of the stove, so
it is imperative that the entire chamber is cleaned.
Using a sweeping motion with a slender, flexible brush will ensure that no area is neglected and as
much of the ash and soot is removed as possible. (1" - 1½" diameter coil brushes work great)
Exhaust Venting & Combustion Blower Housing: Annually or as Needed
The exhaust venting (including Tee cleanouts and elbows), and combustion motor, housing, and impellers
should be inspected and cleaned once per year or as needed.
There is a combustion motor gasket, which allows you to remove the motor from the housing, for
inspection and cleaning. If damage occurs to the gasket, a new blower flange gasket may need to be
added between the blower flange and the steel plate.
Do not over-tighten wingnuts during reassembly.
Notice: To prevent rusting, ensure that all exterior piping (intake and exhaust) are properly capped off to
prevent moisture from entering the stove during the humid spring and summer months.
Glass Air-Wash System
Below the front door opening, there is a slide damper that can be
opened and closed. This is part of the glass air-wash system.
Keeping the slider to the right will open up the damper and allow
some room air to be drawn in and gently washed up the inside of
the glass to help prevent excess soot buildup on the glass.
Once you have located the chamber covers, you will then remove
them by unscrewing the wing nuts/Allen screws and pulling the
plate back.
There is a gasket behind the plate to help make an airtight seal so
the stove does not draw in air through these panels. It is ok to cut
through the center of the gasket to access the chamber behind it.
As long as there is adequate gasket material around the
perimeter, it will provide a proper seal.
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