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3.4.3. Requirements for Terminating the Venting
WARNING: Venting terminals must not be recessed into a wall or siding.
NOTE: Only "pellet" vent pipe wall pass-throughs and fire stops should be
used when venting through combustible materials.
NOTE: Always take into consideration the effect the prevailing wind
direction or other wind currents will cause with flyash and/or smoke when
placing the termination.
In addition, the following must be observed:
A. The clearance above grade must be a minimum of 18".
B. The clearance to a window or door that may be opened must be a
minimum of 48" to the side and 48" below the window/door, and 12" above
1
the window/door.
(With outside air installed, the clearances are 18" to the side and
below and 9" above).
C. A 12" clearance to a permanently closed window is recommended to
prevent condensation on the window.
D. The vertical clearance to a ventilated soffit located above the terminal
within a horizontal distance of 2 feet (60 cm) from the center-line of the
terminal must be a minimum of 18".
E. The clearance to an unventilated soffit must be a minimum of 12".
F. The clearance to an outside corner is 11" from center of pipe.
G. The clearance to an inside corner is 12".
H.
A vent must not be installed within 3 feet (90cm)
meter/regulator assembly when measured from the horizontal center-line of
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the regulator.
I. The clearance to service regulator vent outlet must be a minimum of 6
1
feet.
J. The clearance to a non-mechanical air supply inlet to the building or the
combustion air inlet to any other appliance must be a minimum of 48" .
K. The clearance to a mechanical air supply inlet must be a minimum of 10
1
feet.
(with outside air installed, 6 feet)
L. The clearance above a paved sidewalk or a paved driveway located on
public property must be a minimum of 7 feet.
M. The clearance under a veranda, porch, deck or balcony must be a
1
,
minimum of 12 inches.
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.
1
Certain Canadian and or Local codes or regulations may require different
clearances.
2
A vent shall not terminate directly above a side-walk or paved driveway
which is located between two single family dwellings and serves both
dwellings.
3
Only permitted if veranda, porch, deck, or balcony is fully open on a
minimum of 2 sides beneath the floor.
NOTE: Where passage through a wall, or partition of combustible
construction is desired, the installation shall conform to CAN/CSA-
B365. (if in Canada)
Installation and fitting
INSTALLATION AND USE MANUAL
1
,
2
3
(B also Applies)
PELLET STOVES
1
above a gas
1
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Chapter 3
23
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