Harman Stove Company PB 105, Installation & Operating Manual

9

Requirements for Terminating the Venting

WARNING: Venting terminals must not be recessed

into a wall or siding.

NOTE: Only PL vent pipe wall pass-throughs and

fire stops should be used when venting through combus-
tible 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 termi-
nation.

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” )
C. A 12"  clearance to a permanently closed win-

dow  is  recommended to prevent condensation on the
window.

D. The vertical clearance to a ventilated soffit lo-

cated 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 (90

cm)  above a gas meter/regulator assembly when mea-
sured 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 appliance must be a minimum of 48”.

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 driveway located on public property must be a
minimum of  7 feet.

1,2

M. The clearance under a veranda, porch, deck

or balcony must be a minimum of 12 inches.

1,3

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 regula-

tions 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 bal-

cony is fully open on a minimum of  2 sides beneath the
floor.

V

A

= Vent terminal

= Air supply inlet

Fixed

Closed

O p e n a b l e

Openable

Fixed

Closed

I n s i d e

C o r n e r

Detail

= Area where terminal is not permitted

Fig. 2

NOTE: Where passage through a wall, or partition
of combustible construction is desired, the
installation shall conform to CAN/CSA-B365. (if
in  Canada)

Venting