21
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 penetrating 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.
Co-Axial Venting
Rear Vent with No Vertical Rise
Approved
trough wall
shield/thimble
Approved
side wall
termination
530
engine
Max. 26” (66 cm)
14” (36 cm) max.
within
combustible wall.
26” (66 cm) max.
vent length
Use 845TG vent
guard with a
vent terminal
located at less
than 7’ (2.13 m)
above grade
Rear vent—no vertical rise
Corner rear vent—no vertical rise
Approved
through wall
shield/thimble
Approved
side wall
termination
530
engine
12” (30 cm)
max vent pipe
QUALIFIED
INSTALLER
