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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
Figure 7.4 Outside Air Placement
Outside air installed
on both sides (right
side not shown)
Heat & Glo • RUTHERFORD-42 • 4059-309 Rev G • 11/08
3 ft min. from
top of uppermost
chimney section
to air inlet.
Figure 7.3 Outside Air Inlet Locations