Heatilator I60 Installation Manual page 16

I. Outside Air Kit
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air inlet hood.
The outside air kit is installed on the left hand side of the
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• Use the supplied outside air inlet hood.
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prevent moisture penetration and air leaks.
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enclosed spaces such as an attic or garage.
• DO NOT place outside air inlet hood close to exhaust
vents or chimneys. Fumes or odor could be drawn into
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NO
Outlet blocked by
snow, leaves, etc.
YES
Clear area
outside
house or in
ventilated
• Use UL181 Class 1 or Class 0 rigid or flexible ducting.
crawl space
• Install with short run and add a P-trap which will help
prevent flow of cold air.
• Secure flex duct with screws or wire ties.
Figure 3.17 Outside Air Installation

NO
Garage or
NO
combustible
liquids storage Attic space
Factory-built
fireplace
Heatilator • I60/I80 • 4013-260 Installers Manual • Rev W • 03/23
• Locate outside air inlet hood to prevent blockage from
leaves, snow/ice, or other debris. Blockages could cause
combustion air starvation.
CAUTION! Risk of Cuts/Abrasions.
gloves and safety glasses during installation. Sheet metal
edges are sharp.
3 ft min. from
top of uppermost
chimney section
to air inlet.
Figure 3.16 Outside Air Inlet Locations
NO
Outlet placed
higher than 3 ft
below the
termination cap
Figure 3.18 Outside Air Installation with Cold Air Trap
Wear protective
Not e: Chimney
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Canada.
Typical Outside Air
Installation
Recommend
around 24 inches
for a minimum bend