Heatilator • HEIR36-IFT, HEIR42-IFT, HEIR50-IFT Installation Manual • 2458-980 Rev. B • 8/17
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B. Securing and Leveling the Appliance
WARNING! Risk of Fire!
Prevent contact with:
• Sagging or loose insulation
• Insulation backing or plastic
• Framing and other combustible materials
Block openings into the chase to prevent entry of blown-
in insulation. Make sure insulation and other materials
are secured.
DO NOT
notch the framing around the appliance
standoffs.
Failure to maintain air space clearance could cause
overheating and fire.
Figure 6.3 Side Nailing Tab in Shipping Position
Figure 6.4 Nailing Tab Bent Out for Installation
Figure 6.5. Heat Shields and Nailing Tabs in Installation Position
HEAT SHIELD NAILING
TAB IN SHIPPING
POSITION
Nailing tabs are provided on the appliance and on the heat
shields to secure the appliance to the framing members.
See Figure 6.3 and Figure 6.5 for location of nailing tabs
in shipping position.
• Bend out side nailing tabs 90 degrees. See Figure 6.4.
• Place the appliance into position.
• Keep side nailing tabs flush with the framing.
• Level the appliance from side to side and front to back.
• Shim the appliance as necessary. It is acceptable to use
wood shims underneath the appliance.
• Position and install heat shields by securing two screws
in each heat shield. See Figure 6.1 for shipping location
of heat shields. The heat shield screws can be found
pre-installed on the top of the appliance.
• Bend the top header heat shields upward to position
them vertically and bend out the two nailing tabs on the
top of each header heat shield. Secure to framing. See
Figure 6.5.
• Secure the appliance to the framing by using nails or
screws through the nailing tabs.
• Optional: Secure the appliance to the floor by inserting
two screws through the pilot holes at the bottom of the
appliance.