Operating instructions
4 61D0008
OPERATION GUIDELINES
HOW YOUR FIREPLACE SHOULD BE USED
This replace is intended for supplemental heating only and
is not intended for use as a primary heating system.
This replace is designed to sit directly on a combustible oor.
The replace must be installed with clearances to combustible
building materials as specied by this manual. Only parts
manufactured by MHSC and labeled for use with this replace
should be used in the installation of the replace except for
special roof ashings that may be fabricated locally. The use
of improper parts in the installation can be hazardous and
voids the warranty offered by MHSC.
This replace is designed to burn solid wood fuel (wood),
UL- classied processed solid fuel re logs, or a certied
decorative gas appliance may be installed in the replace as
described later by this instruction manual.
This replace is not designed to burn coal, unplumbed liquid
fuels, unplumbed gaseous fuels or household refuse. Any
attempt to burn these fuels in the replace can be hazard-
ous.
HOW YOUR FIREPLACE WORKS
As wood is burned in the replace, room air entering the
replace is circulated around the replace rebox. This air
circulation protects the rebox from overheating. Air circula-
tion through the replace must not be blocked or restricted
in any manner. Blocking or restricting air circulation through
the replace can cause a re hazard.
RESIDENTIAL INSTALLATION
In residential type installation, an AK4 outside combustion air
kit may be connected to the left side of the replace to allow
outside air to enter the rebox through a dampered opening in
that side of the replace. This outside combustion air feature
reduces the room air used for combustion and prevents exces-
sive heat loss from the room. When the replace is in use,
the replace’s “outside combustion air” damper connected
to an AK4 may be opened to allow air from outside to enter
the replace rebox. When the replace is not in use, the
“outside combustion air” damper should be closed to prevent
cold air from entering the rebox. An “outside combustion
air” damper is open when its control lever is up and closed
when its control lever is down. A control lever for the outside
combustion airdamper is located inside the rebox near the top
of the side rebrick on the left side of the replace. The design
of the replace allows the routing of the combustion air duct
downward or horizontally to obtain the outside combustion
air; this permits exibility in planning your installation. See
Figures 24 thru 27 and their instructions for typical installa-
tion of outside combustion air kits. Review the precautions
and recommendations in this manual pertaining to outside
combustion air.
Note: Outside air for combustion is optional in
residential type installations unless required
by local codes. Outside air for combustion
it is mandatory in manufactured home
installations. Use an AK6 outside combustion
air kit in manufactured home installations,
instead of the AK4 offered for residential type
installations.
GLASS DOORS
Glass doors (models GD36BA, GD36PBA, GD36SSA,
GD42BA, GD42PBA and GD42SSA by MHSC) may be
installed to receive the maximum benet from your re-
place. For large res, the maximum heating benet from
the replace will be obtained with the doors open due to the
high amount of radiant heat being emitted out of the front
opening of the replace. With a small re, or before retiring
in the evenings, it is best to operate the replace with the
doors closed to prevent excessive room air from being drawn
up the chimney. When the doors are open, the mesh screens
should be closed to help keep burning embers from popping
out of the rebox.
installed in manufactured homes.
Fireplaces equipped with glass doors
should be operated only with the
glass doors fully open or fully closed.
If doors are left partly open, gas and
ame may be drawn out of the replace
opening, creating risks of both re and
smoke.
WARNING