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Vertical Termination Venting Configurations
See venting accessories list on pages 32–33 for allowable components.
Top Outlet through Roof (Co-axial Pipe)
See
Conversion to Top Outlet for Solid Direct Vent
Co-axial Piping
in
Appliance Preparation
section for
conversion to top outlet.
817VAK Vent Collar Adapter required;
Maximum offset 4’6”;
Maximum 2 x 90° elbows allowed for offsetting (or
equivalent: 2 x 45° elbows = 1 x 90° elbow);
Various other ceiling or roof items may be necessary
depending on the particular installation.
•
•
•
•
1-5/16” (33 mm)
min. clearance
to combustible
materials
all round
40’ (12.2 m)
max.
Total offset
4’6”
(137 cm)
max.
Ceiling
firestop
Roof
flashing
Approved
vertical
termination
8’ (2.44 m)
min.
w/2 x 45˚
elbows
10’ (3 m)
min.
w/2 x 90˚
(or 4 x 45˚)
elbows
530
engine
Rear Outlet through Roof (Co-axial Pipe)
817VAK Vent Collar Adapter required;
Maximum 2 x 45° elbows allowed for offsetting;
Various other ceiling or roof items may be necessary
depending on the particular installation.
•
•
•
40’ (12.2 m)
max.
8’ (2.44 m)
min.
4’6”
(137 cm)
max.
1-5/16” (33 mm) min.
clearance to
combustible materials
all around
Approved vertical
termination cap
Roof
flashing
Ceiling
firestop
530
engine
