Hearth-and-home-technologies Heatilator GDST5244I User Manual Page 17

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Heatilator • GDST5244I • 4045-127 • Rev W • 11/08 17
5
5
Framing and Clearances
A. Select Appliance Location
When selecting a location for the appliance it is important
to consider the required clearances to walls (see Figure
5.1).
WARNING! Risk of Fire or Burns! Provide adequate
clearance around air openings and for service access. Due
to high temperatures, the appliance should be located out
of traf c and away from furniture and draperies.
NOTICE: Illustrations re ect typical installations and are
FOR DESIGN PURPOSES ONLY. Illustrations/diagrams
are not drawn to scale. Actual installation may vary due to
individual design preference.
53-1/8 in.
(1349 mm)
39 in.
(991 mm)
24 in.
(610 mm)
Note: You must maintain a 36 in. (914 mm)
clearance from the faces of the appliance to
combustible materials in any configuration.
1/2 in. (13 mm)
minimum
1/2 in. (13mm)
minimum
48 in. (219 mm)
maximum
53-1/8 in.
(1349 mm)
min.
53-1/8 in.
(1375 mm)
min.
Figure 5.1 Appliance Locations
B. Construct the Appliance Chase
A chase is a vertical box-like structure built to enclose the
gas appliance and/or its vent system. In cooler climates
the vent should enclosed inside the chase.
NOTICE: Treatment of ceiling restops and wall shield
restops and construction of the chase may vary with the
type of building. These instructions are not substitutes for the
requirements of local building codes. Therefore, you MUST
check local building codes to determine the requirements
to these steps.
Chases should be constructed in the manner of all out-
side walls of the home to prevent cold air drafting prob-
lems. The chase should not break the outside building
envelope in any manner.
Walls, ceiling, base plate and cantilever oor of the chase
should be insulated. Vapor and air in ltration barriers
should be installed in the chase as per regional codes for
the rest of the home. Additionally, in regions where cold
air in ltration may be an issue, the inside surfaces may
be sheetrocked and taped for maximum air tightness.
To further prevent drafts, the wall shield and ceiling re-
stops should be caulked with high temperature caulk to
seal gaps. Gas line holes and other openings should be
caulked with high temp caulk or stuffed with unfaced insu-
lation. If the appliance is being installed on a cement slab,
a layer of plywood may be placed underneath to prevent
conducting cold up into the room.
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