Whitfield P/N 775 024M Rev. C Installation And Operation Manual page 9

INSTALLATION
VENT TERMINATION
Do not terminate vent in an enclosed or semi-enclosed area
such as: carports, garage, attic, crawl space, under a deck,
porch, narrow walkway, closely fenced area, or any location
that can build up a concentration of fumes such as a stairwell,
covered breezeway etc.
Vent surfaces can get hot enough to cause burns if touched.
Adults should supervise children when they are in the area of
a hot stove. Non-combustible shielding or guards may be
required.
Termination Cap: The termination of the outside chimney of
the pellet stove shall be located in accordance with the follow-
ing:
A. Higher than 3' (.92m) above any forced air inlet (air con-
ditioner, etc.) located within 10' (3m).
B. Not less than 4' (1.2m) below, 4' (1.2m) horizontally from
or 1' (3.1m) above any gravity air inlet (door, window,
etc.) which flue gases could re-enter the dwelling.
C. Not less than 2' (.6m) from combustible materials such
as an adjacent buildings, fences, protruding parts of the
structure, roof overhang, plants and shrubs, etc. and not
less than 7' (2.1m) above grade when located adjacent
to the public sidewalks (access). The final termination of
the exhaust system must be configured so that flue
gases do not jeopardize the safety of people passing by,
overheat combustible portions of nearby structures or en-
ter the dwelling.
D. Not less than 3' (.92m) below an eave (maximum over-
hang of 3' (.92m) or any construction that projects more
than 2" (51mm) from the plane of the wall.
E. The distance from the bottom of termination to grade is
12" (305mm) minimum. This is conditional upon plants
and nature of grade surface: Be careful to choose a loca-
tion for the vent termination, which does not expose peo-
ple or shrubs to high heat from the exhaust gases. The
exhaust gases are not hot enough to ignite grass, plants
and shrubs located in the vicinity of the termination al-
though they should be a minimum of 3' (.92m) away. The
grade surface under the termination must not be a lawn.
Since sparks may escape from the exhaust pipe of any
F.
stove, use caution when positioning the vent pipe. Refer
to pipe manufacturer's instructions when installing and
terminating the exhaust). The vent pipe should be hori-
zontal and never run the pipe in a downward direction
(recommend a ¼" (7mm) rise per foot horizontal).
Notes:
•
It is not recommended to terminate exhaust vent on
the prevailing wind side of the house.
•
It is not recommended using a termination cap with
a screen (fly ash can collect in a screen resulting in
blockage).
Site Built Residential Home
Chimney Height Requirements
The vent termination height required is - USA, 1-foot
minimum; Canada 3-feet minimum above the roof pene-
tration point as illustrated below (Ref. USA - National
Standard, NFPA 211, Clause 7-4.1 and Canada National
Standard CSA B365-01, Clause 5.6). Check with your
local building official for additional requirements for your
area.
TERMINATION
CAP MUST BE
LISTED TO UL
641 AND ULC
S609 *
Manufactured (Mobile) Home
Chimney Height Requirements
The chimney must extend 3' (.92m) above the level of
roof penetration and a minimum of 2' (.61m) higher than
any roof surface within 10' (3m) (see below). Check with
your local building officials for additional requirements for
your area.
REQUIRES A LISTED
TERMINATION CAP *
To pass inspection in nearly any jurisdiction, the chimney
must meet both safety and exhaust flow requirements.
The (3' by) 2' by 10' rule applies to both masonry and
factory built chimneys.
* Ref. NFPA 211 Clause 7 – 4.1.2, Vents installed with a
listed cap shall terminate in accordance with the terms
of the cap's listings.
PAGE 9
USA 1 Foot Minimum
CANADA 3 Feet Minimum
TERMINATION HEIGHT IS
MEASURED ABOVE THE
HIGHEST POINT WHERE
IT PASSES THROUGH
THE ROOF SURFACE.
TOP OF FLUE MUST BE 3' HIGHER THAN
HIGHEST POINT OF ROOF PENETRATION
TOP OF FLUE MUST BE 2'
HIGHER THAN ANY PART OF
ROOF WITHIN 10' HORIZONTAL