Outlet blocked by
snow, leaves, etc.
NO
Garage or
combustible
liquids storage
NO
Attic space
NO
Outlet placed
higher than 3 ft
below the
termination cap
NO
UL181 Listed Class 0
or Class 1 metal flex or
rigid duct
Figure 3.11 Outside Air Installation
Figure 3.12 Outside Air
Termination Cap
supplied with
fireplace
UL 181 Listed Class 0 or
Class 1 metal flex or rigid
duct
Open/Close
Knob for
outside air
CLOSE
OPEN
17
Heat & Glo • NORTHSTAR • 480-2360 Installation Manual • Rev H • 8/20/14