12
SPNE 190913-24
Combustion Air
Consult local building codes regarding combustion air supply.
Intake or combustion air can be supplied to the Insert in one
of two ways:
1) Outside air (O/A) supply: Remove cover from ash clean
out in existing replace. Place a rodent screen in place
of the cover. Install the Insert as described in the installa-
tion section, making sure not to cover the opening of the
air inlet. When installation is complete, seal surround to
replace and anywhere else air may enter. This will ensure
combustion air is drawn from outside the house and into
the 9" x 2" intake at the lower rear of the appliance.
2) Room air supply: Install the Insert as described in the
installation section. When the installation is complete,
do not seal surround to replace. This will allow enough
combustion air to enter the replace cavity and the Insert.
Removal: The O/A cover should be removed prior to installa-
tion. For better access, tip the Insert onto its back.
1. Using a 5/16" wrench, remove the screw securing the O/A
cover to the rebox (Fig. #21 & 22).
This unit is not designed to be operated with the ring door
open. In addition to the obvious hazard of sparks landing on
combustibles, an open re door will cause the heater to draw
air from the living space and possibly cause suffocation.
The living space around the heater must be well ventilated
with good air circulation. Anything that may cause a negative
pressure can cause gases or fumes to be pulled into the liv-
ing area.
O/A Cover Screw
O/A Cover
Fig. # 21
Fig. # 22
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