20
Venting
Overview
10” (254 mm)
10” (254 mm)
Align the vent center
to the center of the
frame
Top or Rear Outlet
This unit is supplied with a top vent outlet which can
be
fi
eld-converted to a rear vent outlet. See
Appliance
Preparation
section for more information.
Vent Material
This unit is approved for installation using
4 x 6-5/8 inches co-axial direct vent pipe and
accessories as listed in the
Approved Venting Components
section on pages 61–62 of this manual. Follow the
installation instructions supplied with the individual
venting accessories.
This unit may also be converted to co-linear (2 x 3 in)
venting for use in solid-fuel burning
fi
replaces and
chimneys using adapters and accessories—see list
in the
Approved Venting Components
section on pages
61–62 of this manual.
Vent Sealing
Seal all outer coaxial pipe and elbow joints, including
sectioned elbow joints, using high quality, high tem-
perature 2 inch wide self-adhesive aluminum foil tape
(Nashua-322-2 brand or similar). Wrap the tape com-
pletely around all joints and press
fi
rmly to seal.
A high temperature black silicone sealant may be used
in the outer joints as a substitute to foil tape.
Ensure all the pipe joints have a minimum of 1 ¼ inch
overlap.
Wall Thickness
The appliance vent is suitable for penetrating a
combustible wall assembly up to 8 inches in thickness.
A non-combustible wall can be of any thickness up to
the maximum horizontal run of vent pipe allowed for
the particular installation.
Framing Vent in Combustible Walls & Ceilings
When penetrating through combustible walls and
ceilings, frame a minimum of 10 in x 10 in opening and
ensure that the insulation is kept clear of the vent pipe
using either a wall thimble or an attic insulation shield.
Follow the installation instructions supplied with the
individual venting components.
Important Installer Notice – Weather
Sealing & Vapor Barriers
It is the installer’s responsibility to ensure that vent
installations through exterior walls are caulked and
weatherproofed in such a manner as to:
• Prevent rain water from entering the wall from the
weather side by adequately caulking the outer vent
plate to the exterior wall surface.
• Prevent moisture inside the home from penetrat-
ing into the wall structure by ensuring the inside
wall plate is adequately sealed to the inside vapor
barrier.
• Prevent rain water and moisture from entering the
walls by sealing the joints between the outer vent
tube and the inner and outer wall plates.
We recommend the use of a high quality
polyurethane sealant.
Tape all joints
(including all
elbow joints)
All horizontal pipe runs
must be graded 1/4 inch per
foot upwards in the direction of the exhaust
fl
ow. The
fi
nal pipe length, when terminating through the wall
may be graded downwards slightly to prevent water
migration.
