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Vermont Castings • Montpelier Medium Insert Installation & Operating Manual_R26 • 05/19
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If it is necessary to remove the firechamber to inspect or
clean the chimney, this is how to do it:
• Let the Montpelier Medium Insert cool.
• Disconnect the fan power cord.
• You may wish to lighten the firebox by removing the
load door and andiron.
• Retract the two levelling screws until they bear no
weight.
• Remove the front air tube and fiber baffle.
• Disconnect the flue collar or vent connector from the
top of the stove.
• Slide the firechamber forward until you have access
to the fireplace opening.
• Inspect the flue.
You can now inspect the smoke shelf area of the fireplace
and the chimney. Before replacing the Montpelier Medium
Insert, this area should be inspected for signs of deterioration
and cleaned thoroughly with a chimney brush.
Clean the chimney using a specially designed brush the same
size and shape as the flue liner. Flexible fiberglass rods are
used to run the brush up and down the liner, causing any
deposits to fall to the bottom of the chimney where they can
be removed through the clean-out door.
The chimney connector should be cleaned by disconnecting
the sections, taking them outside, and removing any deposits
with a stiff wire brush.
Reinstall the connector sections after cleaning, being sure
to secure the individual sections with sheet metal screws.
If you can’t do the chimney inspection yourself, contact your
local Vermont Castings’ Authorized Dealer, or engage a
professional chimney sweep to perform the inspection and
cleaning of the chimney.
Reverse the procedure to re-install the firechamber.
Replacing the Door Gaskets
• Remove the door by lifting it straight up from its hinge
pins.
• Lay it face down on a padded surface.
• Remove the glass. Follow the instructions for removing
and replacing glass which start on Page 15.
• Replace gaskets. Follow steps 1-4, above.
• Replace the glass.
• Replace the door.
The Chimney System
A Clean Chimney System is Safer and Works Better
Although the non-catalytic combustion system in your
Montpelier Medium Insert can reduce creosote formation
dramatically, it is not a substitute for regular inspection and
cleaning of the chimney and chimney connector.
Learn to Recognize and Avoid Creosote
Your Montpelier Medium Insert has been designed to
minimize creosote build-up. Regular chimney inspection
and maintenance, however, must still be performed. For
safety, good stove performance, and to protect your chimney
and chimney connector, inspect your chimney and chimney
connector on a regular schedule. Clean the system if
necessary. Failure to keep the chimney and connector system
clean can result in a serious chimney fire.
Creosote - Formation and Need for Removal - When wood
is burned slowly, it produces tar and other organic vapors,
which combine with expelled moistue to form creosote. The
creosote vapors condense in the relatively cool chimey flue of
a slow-burning fire. As a result, creosote residue accumulates
on the flue lining. When ignited, this creosote makes an
extremely hot fire. The chimney and chimney connector
should be inspected at least once every two months during
the heating season to determine if a creosote buildup has
occurred. If creosote has accumulated, it should be removed
to reduce the risk of a chimney fire.
If you do experience a chimney fire, act promptly to:
• Close the primary air control lever (fully to the right).
• Get everyone out of the house.
• Call the Fire Department from a nearby house.
You should inspect the system every two months during the
heating season as part of a regular maintenance schedule.
To inspect the chimney, let the Montpelier Medium Insert cool
completely. Then, using a strong light, sight up through the
flue collar into the chimney flue. The fiber baffle will need to
be removed gently to view inside the connector pipe.