UTICA BOILERS UBSSC-050 Installation, Operation & Maintanance Manual page 21

Glue inner vent pipe to prevent
recirculation.
Maintain 12" (30 cm) minimum
clearance above highest anticipated
snow level. Maximum of 24"(0.61m)
above roof.
Support must be fi eld installed to
Concentric
secure termination kit to structure.
Vent Roof
Elbow, roof boot/fl ashing fi eld
Terminations
supplied.
Allowed Wall/Roof thickness 1/2"-30"
(1.2 - 76cm).
Vertical concentric vent system can be
installed in unused masonry chimney.
Contact Technical Support for
questions regarding installation or use.
6 - COMBUSTION AIR AND VENT PIPING
FIGURE 6-6
Combustion Air
Roof boot/fl ashing
(fi eld supplied)
Note: Support must
be fi eld installed to
secure termination
kit to structure
Vent
21
Vent
Maintain 12"(30cm)
clearance above highest
anticipated snow level
24" above roof
Support
(fi eld supplied)
Combustion Air