Venting; Type Of Vent; Pellet Vent Installation - Cumberland Stove Works MF3800 Installation And Service Manual

VENTING

Consult vent manufacturer 's specifications and
recommendations for all venting installations.
The following installation guidelines must be followed to
ensure conformity with both the safety listing of this stove
and to local building codes.
NOTE: Where passage through a wall, or a partition of
combustible construction is desired, the installation shall
conform to CAN/CSA-8365.

TYPE OF VENT

Pellet venting pipe (also known as L vent) is constructed of two
layers with air space between the layers. This air space acts as an
insulator and reduces the outside surface temperature of pipe.
A UL-listed three- or four-inch (3" or 4") type L pellet vent
exhaust system must be used for installation and attached to
the pipe connector provided on the back of the stove. Use a 3"
to 4" adapter for 4" pipe. A cap must be used at the termination
of type L vent chimneys. At elevations greater than 2,500 feet
above sea level, a four-inch (4") L is required.

PELLET VENT INSTALLATION

Vent termination MUST exhaust above air inlet elevation.
It is recommended to install at least three feet (3') of vertical
pellet vent pipe. This will create a natural draft to prevent the
possibility of smoke or odor during appliance shutdown and
will keep exhaust from causing a nuisance or hazard from
exposure to high temperatures.
The installation must include a cleanout tee to enable
collection of fly ash and to permit periodic cleaning of the
exhaust system.
All joints for pellet vent are required to be
fastened with at least three screws. Pellet
vent section connections (including adapters,
elbows, etc.) should be sealed airtight by
injecting 500° F. RTV silicone into the gap
between sections. The area where the vent
pipe goes through to the exterior of the home
must be sealed with silicone or other means to
maintain the vapor barrier between the exterior
and the interior of the home.
Page 14
FOR QUALIFIED INSTALLERS ONLY
CumberlandStoveWorks.com
INSTALLATION AND SERVICE MANUAL
WARNING
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING
ANOTHER APPLIANCE.
DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST
VENTING SYSTEM OF THIS UNIT.
DO NOT CONNECT DIRECTLY TO A MASONRY CHIMNEY.
DO NOT TERMINATE VENT IN ANY ENCLOSED OR SEMI-
ENCLOSED AREA, SUCH AS: CARPORTS, GARAGE, ATTIC,
CRAWL SPACE, UNDER A SUN DECK OR PORCH, NARROW
WALKWAY OR CLOSED AREA, OR ANY LOCATION THAT
CAN BUILD UP A CONCENTRATION OF FUMES SUCH AS A
STAIRWELL, COVERED BREEZEWAY, ETC.
CAUTION
VENT SURFACES CAN GET HOT ENOUGH TO CAUSE BURNS
IF TOUCHED. NONCOMBUSTIBLE SHIELDING OR GUARDS
MAY BE REQUIRED.
INSTALL VENT AT CLEARANCES SPECIFIED BY THE VENT
MANUFACTURER.
Model MF3800