Installation Of Fireplace; Install The Outside Air Kit - Heatilator ST42A Owner's Manual

4 4

Installation of Fireplace

CAUTION
Sharp Edges
• Wear protective gloves and safety glasses
during installation.
A. Install the Outside Air Kit
The outside air kit is supplied as an optional feature with this
fi replace and its use is highly recommended to minimize the
effects of negative pressure within the structure. We recom-
mend you utilize the shortest duct run to optimize the perfor-
mance of the outside air kit. The outside air kit inlet should
be positioned at least 4 ft (1.22 m) above the ground level, in
a manner that will not allow snow, leaves, etc. to block the in-
let. See Figure 4.1 for proper placement of outside air inlet.
The outside air kit is installed on either side of the fi replace.
See Figure 4.2 for handle location/operation.
Figure 4.1
NO
Outlet blocked by
snow, leaves, etc.
YES
Clear area
outside
house or in
ventilated
crawl space
Use only duct materials specified
by manufacturer (preferably with
short run or mainly straight duct,
except small dip for cold air trap
which will help prevent flow of cold air.)
Outside Combustion Air Placement
Figure 4.2 Locating the Outside Air Control
Heatilator • ST42A • 35038 Rev G • 02/05
Fire Risk
Asphyxiation Risk
Do not draw outside combustion air from:
•
•
•
Fumes or odor may result.
Risk of Smoke Spillage
Outside air inlet must be located to prevent blockage
from:
• Leaves
• Snow/ice
• Other debris
Blockage may cause combustion air starvation.
NO
Garage or
NO
combustible
Attic space
liquids storage
Factory-built
fireplace
(Push slider to open.)
WARNING
Wall, fl oor or ceiling cavity.
Enclosed space such as an attic or
garage.
Close proximity to exhaust vents or
chimneys.
CAUTION
NO
Outlet placed
higher than 3 ft
below the
termination cap
13