
6XXV Pellet Stove
Venting
Requirements for Terminating the Venting
WARNING: Venting terminals must not be recessed
into a wall or siding.
NOTE:OnlytheHarmanDirectVentWallPass-through
(part # 1-00-677077) or PL listed vent pipe wall pass-
throughsandrestopsshouldbeusedwhenventing
through combustible materials.
NOTE: Always take into consideration the effects of
the prevailing wind direction or other wind currents
thatmaycauseyashand/orsmokewhenplacingthe
termination vent.
In addition, the following must be observed:
A. The clearance above grade must be a minimum of
18".1
B. The clearance to a window or door that may be
opened must be a minimum of 48" to the side, 48"
below the window/door, and 12" above the window/
door.1(with outside air installed, 18” to side or below
window/door)
C. A 12" clearance to a permanently closed window
is recommended to prevent condensation on the win-
dow.
D.Theverticalclearancetoaventilatedsoftlocated
above the terminal within a horizontal distance of 2 feet
(60 cm) from the center-line of the terminal must be a
minimumof18".
E.Theclearancetoanunventilatedsoftmustbea
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 (90 cm)
abovea gasmeter/regulatorassemblywhenmeasured
from the horizontal center-line of the regulator.1
I. The clearance to service regulator vent outlet must
be a minimum of 6 feet.1
J. The clearance to a non-mechanical air supply inlet
to the building or the combustion air inlet to any other
appliancemustbeaminimumof48”.1
K. The clearance to a mechanical air supply inlet must
be a minimum of 10 feet.1
(with outside air installed, 6 feet )
L. The clearance above a paved sidewalk or a paved
drivewaylocatedonpublicpropertymustbeaminimum
of 7 feet.1,2
M. The clearance under a veranda, porch, deck or
balcony must be a minimum of 12 inches.1,3(B. Also
Applies)
NOTE: The clearance to vegetation and other exterior
combustiblessuchasmulchis36”asmeasuredfrom
thecenteroftheoutletorcap.This36”radiuscontinues
to grade or a minimum of 7 feet below the outlet.
1CertainCanadianandor Localcodesorregulations
may require different clearances.
2A vent shall not terminate directly above a side-
walk or paved driveway which is located between two
single family dwellings and serves both dwellings.
3Onlypermittedifveranda,porch,deck,orbalconyis
fullyopenonaminimumof2sidesbeneaththeoor.
NOTE: Where passage through a wall, or
partitionof combustibleconstructionis desired,
theinstallationshallconformtoCAN/CSA-B365.
(if in Canada)
= Vent terminal = Air supply intake = Area where vent terminal not permitted
NOTE: A chimney connector may not pass
through an attic or roof space, closet or similar
concealed space, oor, or ceiling.