General Venting; Type Of Vent; Installing The Pellet Vent; Venting The Pellet Heater - Napoleon NPS40 Installation And Operating Insctructions

4.0 GENERAL vENTING

Pellet vent must maintain a minimum 3" clearance to any combustible (install vent at clearances
Do not connect the pellet vent to a vent or chimney serving any other appliance or heater.
4.1

TYPE OF vENT

Must be an approved 3" or 4" diameter Type "L" or "PL" vent, vented to the outside or connect the vent to a
factory built type "A" chimney using an adaptor; and/or stainless steel chimney liner for masonry fireplace
installations. Use 4" diameter vent if vent or liner height is over 15' or if installation is over 4,000' above sea
level.
4.2

INSTALLING ThE PELLET vENT

The vent must have a support bracket every 5' when on the exterior wall.
To achieve optimum performance, keep vent runs as short as possible,
especially on horizontal installations.
MAXIMUM VENTING: Maximum venting height is 33'. Maximum
horizontal vent run is 10'. Use no more than 180° of elbows (two
90' elbows, or two 45' elbows and one 90' elbow, etc),
the tee and the
VENT INSTALLATION: Termination must exhaust above the air
inlet elevation, and parallel or above the exhaust output of the
pellet appliance. It is recommended that at least 3' of vertical pipe
be installed to create some natural draft. This is to help prevent the
possibility of smoke or odour during the appliance shut down or in
the event of a power outage. Horizontal sections must have a 1/4"
rise every 12" of travel if longer than 3'.
The pellet vent connections must be sealed with HI-Temp RTV
Silicone and screwed together with at least 3 3/8" long stainless
steel screws. Seal each vent section by injecting a liberal
amount of 500°F (260°C) RTV silicone sealant into the gap.
We recommend sealing the outside of the vent connections to
permit easier access when servicing.
4.3

vENTING ThE PELLET hEATER

Use an approved wall thimble when passing the vent through walls and a ceiling support/fire stop spacer when
passing the vent through ceilings (maintain a 3" clearance to any combustibles).
4.4

PELLET vENT TERmINATION

The vent termination must have an approved cap (to prevent water from entering) or a 45° downturn.
If the termination is located on a windy side of the house, a shield is recommended to prevent soot from
building up on the side of the house.
Horizontal terminations must protrude 12" from the wall, vertical terminations require a minimum 24" above the
highest point that it penetrates through the roof.
Depending on pellet quality, vent configuration and air settings, black soot may occur on the terminal wall.
specified by the vent manufacturer).
Do not install a flue damper in the exhaust venting system of this unit.
termination.
WARNING
!
excluding
Use 4"
diameter "L"
vent if venting
in this region.
Use 3" or 4"
diameter
"L" vent if
venting
in this
region.
fIGure 4.2
0'
5'
10'
TP - GENERAl vENTING_PEllET
TP - TYPE OF vENT_PEllET
TP - INSTAllING_PEllET
TP - vENTING PEllET hEATER
TP - PEllET vENT TERmINATION
W415-0616 / E / 10.08.08
15
33'
30'
25'
20'
15'
10'
5'
0'