Hearth and Home Technologies BIR42-B - Manual (Page 22)

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Outlet placed
higher than 3 ft
below the
termination cap
Attic space
Garage or
combustible
liquids storage
Outlet blocked by
snow, leaves, etc.
Clear area
outside
house or in
ventilated
crawl space
YES
NO
NO
NO
NO
Factory-built
fireplace
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).
Figure 7.4 Outside Air Placement
Outside air installed
on both sides (right
side not shown)
Heatilator • Birmingham BIR42-B • 4059-681C • 9/12
3 ft min. from
top of uppermost
chimney section
to air inlet.
Figure 7.3 Outside Air Inlet Locations