Harman P42i-TC - Page 19

Harman® • P42i Pellet Insert Installation Manual • 2023 -___ • 08/2319 8742-901D
Vent Congurations:
To reduce probability of reverse drafting during shut-
down conditions, Hearth & Home Technologies strongly
recommends:
• Installingthepelletventwithaminimumverticalrunof
vefeet,preferablyterminatingabovetheroofline.
• Installingtheoutsideairintakeatleastfourfeetbelowthe
vent termination.
Topreventsootdamagetoexteriorwallsofthehouseand
topreventre-entryofsootorashintothehouse:
• Maintainspeciedclearancestowindows,doors,andair
inlets, including air conditioners.
• Ventsshouldnotbeplacedbelowventilatedso󰀩ts.Run
the vent above the roof.
• Avoid venting into alcove locations.
• Vents should not terminate under overhangs, decks or
onto covered porches.
• Maintain minimum clearance of 12 inches from the
ventterminationtotheexteriorwall.Ifyouseedeposits
developing on the wall, you may need to extend this
distance to accommodate your installation conditions.
Hearth & Home Technologies assumes no responsibility
for, nor does the warranty extend to, smoke damage
caused by reverse drafting of pellet appliances under
shut-down or power failure conditions.
WARNING! DO NOT CONNECT THIS UNIT TO ANY AIR
DISTRIBUTION DUCT OR SYSTEM.
Ifarearexituecongurationisused,withorwithoutoutside
air, make sure the ue pipe termination clearances are
followed as per NFPA 211.
Vent Pipe
Be sure to use approved pellet vent pipe wall and ceiling
pass-through ttings togo through combustible walls and
ceilings. Be sure to use a starting collar to attach the venting
system to the stove. Follow vent manufacturers instructions
for proper sealing.
4” stainless steel ex vent piping is only allowed for use
inmasonryreplacesandchimneysorfactorybuiltwood-
burningreplaceswithclassAmetalchimneys.
Pellet venting pipe (also known as Type PL 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 to allow a clearance to combustibles of
only 1 inch. The sections of pipe lock together to form an air
tight seal. Follow vent manufacturers instructions for proper
sealing.
Wherepassingthroughanexteriorwallorroof,besuretouse
theappropriatepass-throughdeviceprovidinganadequate
vapor barrier. Venting manufacturers generally provide these
pass-throughdevices.
Venting Termination Requirements
1. Termination must exhaust above air inlet elevation.
It is recommended that at least 60 inches (1524mm)
of vertical pipe be installed when appliance is vented
directly through a wall. This will create a natural draft,
which will help prevent the possibility of smoke or odor
ventingintothehomeduringapoweroutage.Itwillalso
keep exhaust from causing a nuisance or hazard by
exposing people or shrubs to high temperatures. The
safest and preferred venting method is to extend the
vent vertically through the roof.
2. Distance from doors and operable windows, gravity or
ventilationairinletsintobuilding:
a. Notlessthan48inches(1219mm)below;
b. Notlessthan48inches(1219mm)horizontallyfrom;
c. Notlessthan12inches(305mm)above.
3. Distancefrompermanentlyclosedwindows:
a. Notlessthan12inches(305mm)below,horizontally
from or above.
4. Distance between bottom of termination and grade
should be 12 inches (305mm) minimum. This is
conditional upon plants in the area, and nature of grade
surface.Thegradesurfacemustbeanon-combustible
material(i.e.,rock,dirt).Thegradesurfacemustnotbe
lawn. Distance between bottom of termination and public
walkwayshouldbe84inches(2134mm)minimum.
5. Distance to combustible materials must be 24 inches
(610mm) minimum. This includes adjacent buildings,
fences, protruding parts of the structure, roof overhang,
plants and shrubs, etc.
6. TerminationCapLocation(HomeElectricalService)
• Side-to-side clearance is to be the same as minimum
clearance to vinyl inside corners.
• Clearance of a termination cap below electrical service
shallbethesameasminimumclearancetovinylso󰀩ts.
• Clearance of a termination cap above electrical service
willbe12inches(305mm)minimum.
• Location of the vent termination must not obstruct or
interfere with access to the electrical service.
For Canada Only: This Fireplace Insert must be
installed with a continuous chimney liner of 4”
diameter extending from the replace 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.