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C. Venting Requirements and
Restrictions
A combustion blower is used to extract the combus-
tion gases from the firebox. This causes a negative pres-
sure in the firebox and a positive pressure in the venting
system. The longer the vent pipe and more elbows used
in the system, the greater the flow resistance.
The recommended maximum flue lengths for the
P35i Insert are as follows:
3" or 4" Stainless Steel Flex: 30 Lineal ft. Vertical*
4" PL Vent Pipe:
4" Pl Vent Pipe: 30 Lineal ft. Vertical*
4" Pl Vent Pipe: 14 ft. Vertical w/1-90
horizontal*
If additional 4" PL Vent fittings are required, the
overall length must be reduced by:
Vertical 90
or T:
2.5'
o
Vertical 45
:
1.5'
o
Horizontal 90
or T:
5.0'
o
Horizontal 45
:
2.5'
o
3" PL Vent Pipe:
20 Lineal ft. vertical*
8 Lineal ft. vertical w/1-90
If additional 3" PL Vent fittings are required, the
overall length must be reduced by:
Vertical 90
or T:
2.0'
o
Vertical 45
:
1.0'
o
Horizontal 90
or T:
4.0'
o
Horizontal 45
:
2.0'
o
* Long runs of flex or PL vent pipe installed directly
vertical from the flue stub may require more frequent
cleaning due to fly ash falling off inside and collecting
directly above the combustion blower outlet.
Any use of horizontal venting will require more
frequent cleaning. It is the responsibility of the installer
to make sure the entire flue configuration is accessible
for cleaning.
Stainless steel flex vent is only allowed for use in
masonry fireplaces and chimneys or in factory built wood
burning fireplace installations when used as a liner for
a class A metal chimney. All pellet vent pipe must be
secured together by means provided by pipe manufac-
turer. The vent pipe must be secured to the appliance
flue collar with a minimum of three screws.
It is also recommended that you seal all vent pipe
joints with high temperature silicone.
14
Pellets or Corn/Pellet Mixture Only
and 12 lineal ft.
o
& 8 lineal ft. horizontal*
o
Use only the specified venting components. Use
of any other components will void the product
warranty and may pose a hazard.
Do Not Install A Flue Damper In The Exhaust
Venting System Of This Appliance.
DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE
SERVING ANOTHER APPLIANCE.
NOTE: If burning a shelled corn and pellet mixture,
you must use approved venting components that
are specifically designed for corn burning.
WARNING! RIsK Of fIRE!
•
Only LISTED type L or PL Pellet venting compo-
nents may be used.
•
NO OTHER type of venting materials or compo-
nents may be used.
•
Substitute or damaged vent components may
impair safe operation.
WARNING! RIsK Of INJURy OR pROpERTy
DAmAGE!
•
Improper installation, adjustment, alteration,
service, or maintenance can cause injury or
property damage.
•
Read and Refer to your owner's manual.
•
For assistance or additional information, consult a
qualified installer, service agency or your dealer.
IN CANADA: This fireplace insert must be
installed with a continuous chimney liner of a
minimum 3" diameter extending from the insert
to the top of the chimney. The chimney liner must
conform to the Class 3 requirements of CAN/ULC-
S635, Standard for Lining Systems for Existing
Masonry or Factory Built Chimneys and Vents, or
CAN/ULC-S640, Standard for Lining Systems for
New Masonry Chimneys.
3-90-775
P35i Fireplace Insert
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