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5 MAINTAINING YOUR WOOD HEATING SYSTEM
5.1 FIREPLACE MAINTENANCE
Your new fireplace will give many years of reliable service if you use and maintain it correctly. Some of the
internal components of the firebox, such as refractory slabs, baffles and air tubes, will wear over time under
intense heat. You should always replace defective parts with original parts (see Appendix 9: Exploded
Diagram and Parts List).
Firing each load hot to begin a cycle as described above will not cause premature deterioration of the
fireplace. However, letting the fireplace run with the air control fully open for the entire burn cycles can cause
damage over time. The hotter you run the fireplace throughout burn cycles, the more quickly its components
will deteriorate. For that reason, never leave the fireplace unattended while a new load is being fired
hot.
5.1.1 PLATED FINISH MAINTENANCE
If your appliance has a plated finish, use a metal polish and a soft cloth to clean it. Do not use abrasives
such as steel wool, steel pads or an abrasive cleaner for they may scratch the finish.
5.1.2 GLASS DOOR CLEANING
Under normal conditions, your door glass should stay relatively clear. If your firewood is dry enough and
you follow the operating instructions in this manual, a whitish, dusty deposit will form on the inside of the
glass after a week or so of use. This is normal and can be easily removed when the fireplace is cool by
wiping with a damp cloth or paper towel and then drying. Never try to clean the glass when the fireplace
is hot.
In spring and fall when the fireplace is run at lower temperatures, you may see some light brown stains
forming, especially at the lower corners of the glass. This indicates that the fire has been smoky and some
of the smoke has condensed on the glass. When the weather is mild, you may find that letting the fire go
out is better than trying to maintain a continuous fire. Use the technique described above for building a fire
to take the chill off the house.
If you do get brown stains on the glass you can remove them with special cleaners for wood heater glass
doors. Do not use abrasives to clean your fireplace's door glass.
The deposits that form on the glass are the best indication of the quality of your fuel and how well you are
doing in operating the fireplace. Your goal should be clear glass with no brown stains. If you continue to
see brown stains on the glass, something about your fuel and operating procedure needs to be changed.
Stains on the glass indicate incomplete combustion of the wood, which also means more smoke emissions
and faster formation of creosote in the chimney.
If you see brown streaks coming from the edge of the glass, it is time to replace the gasket around the
glass. Visit your fireplace retailer to get the self-adhesive glass gasket and follow the instructions below for
installation.
Do not abuse the glass door by striking or slamming shut. Do not use the fireplace if the glass is
broken.
5.1.3 DOOR ADJUSTMENT
In order for your fireplace to burn at its best efficiency, the door must provide a perfect seal with the
firebox. Therefore, the gasket should be inspected periodically to check for a good seal. The gasket seal
may be improved with a simple latch mechanism adjustment. The right hand door has the operational latch
mechanism installed.
HearthStone Quality Home Heating Products, Inc ®
19
WFP-100 Model 8420
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