16
‘H’
Horizontal
overhang
Vertical
wall
Termination
cap
Storm
collar
Roof
flashing
Plumber’s tape
fixed to wall strap
Wall strap
Ceiling
firestop
Ceiling
support
Offset elbows
Min.
18”
Overhang should
not extend beyond
vent if within 48” of
termination cap
Min. 24”
(unvented soffit)
Min. 36”
(vented soffit)
Through-the-roof installation
Vertical Vent Termination
Venting
Co-Axial
Roof Pitch
Minimum
"H" [feet]
Flat to 7/12
1'
Over 7/12 to
8/12
1.5'
Over 8/12 to
9/12
2’
Over 9/12 to
10/12
2.5’
Over 10/12 to
11/12
3.25’
Over 11/12 to
12/12
4’
Over 12/12 to
14/12
5’
Co-Linear
Co-Linear (Rear Outlet ONLY)
For conversion of rear outlet collar to co-linear (two
3-inch pipes) rear venting, refer to instructions
packaged with the 556CLA—Co-Linear Adapter.
NOTE
Co-linear venting may only be installed into solid-
fuel burning fireplaces and chimneys.
NOTE
Co-linear adapter may be installed as a rear outlet
ONLY.
