Harman® • XXV Installation Manual_R31 • 2004 -___ • 11/15
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B. Chimney Diagram
V
=Vent Terminal
A
=Air Supply Inlet
=Area where termination is not permitted
Door
Sidewalk
Fixed
Closed
Openable
Openable
Fixed
Closed
Inside Corner
Detail
Porch or
Openable
Deck
or Fixed
Requirements for Terminating the Venting
Figure 4.10
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with outside air installed, 6 feet
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(B. also)
NOTE: The clearance to vegetation and other exterior
combustibles such as mulch is 36” as measured from
the center of the outlet or cap. This 36” radius continues
to grade or a minimum of 7 feet below the outlet.
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See NFPA 211 for more installation clearance reductions when
using outside air.
NOTE: Where passage through a wall, or partition of
combustible construction is desired, the installation
shall conform to CAN/CSA-B365. (if in Canada)
WARNING
!
Venting terminals must not be recessed into a wall
or siding.
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stops should be used when venting through combustible
materials.
Always take into consideration the effect the prevailing
wind direction or other wind currents will cause with
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In addition, the following must be observed:
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with outside air installed, 9”
to side and below
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