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42
GAS-FIRED BOILER Boiler Manual
J. DIAGRAMS FOR SIDEWALL VENTING
GENERAL NOTE: All vent pipes must be glued, properly supported and the exhaust must be pitched a
minimum of a ¼" per foot back to the heater (to allow drainage of condensate).
RIGHT SIDE VIEW EXTERIOR WALL
AND VERTICAL PIPING
ALL HORIZONTAL
COUPLING
TEE
INTAKE AIR
VENT
TOP VIEW
STRAIGHT
SUPPORT BRACKETS
MUST BE USED ON
EXHAUST
VENT
EXTERIOR WALL
12" MIN.
1" MIN.
TEE
STRAIGHT
VENT
SIDEWALL VENTING WITH TEE (INTAKE)
AND COUPLING (EXHAUST)
COUPLING
EXHAUST
INTAKE AIR
VENT
12" MIN.
EXTERIOR WALL
TEE
ALL HORIZONTAL
TOP VIEW
STRAIGHT
AND VERTICAL PIPING
COUPLING
SUPPORT BRACKETS
MUST BE USED ON
STRAIGHT
COUPLING
RIGHT SIDE
VIEW
1" MIN.
12" MIN.
TEE
AND COUPLING (EXHAUST)
SIDEWALL VENTING WITH TEE (INTAKE)
EXHAUST
VENT
INTAKE AIR
VENT
1" MIN.
NOTE: When placing support brackets on vent piping, the first bracket must be within 1 foot of the
appliance and the balance at 4 foot invervals on the vent pipe. The boiler venting must be readily
accessible for visual inspection for the first three feet from the boiler.
Figure 7-9 Figure 7-10