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WARNING:
WARNING:
WARNING:
WARNING:
WARNING:
Do not connect this CATEGORY 1 boiler to a vent system used
by a CATEGORY 3 and 4 appliance. Do not connect it to vents with mechanical draft
systems operating at positive pressure. Improper venting could allow combustion products
to collect in the structure during use, resulting in damage, injury or death.
F. CHIMNEY LINING
Use a suitably sized Type B1 vent liner or suitable corrigated liner. (See Figure 11 below)
WARNING:
WARNING:
WARNING:
WARNING:
WARNING:
Support vent liner in a masonry chimney. Maintain at least 1"
clearance on all sides to reduce the possibility of condensate in vent. Condensate may
cause vent to deteriorate allowing combustion products to collect in structure, which could
result in injury or death. See Figure 12 below.
WARNING:
WARNING:
WARNING:
WARNING:
WARNING:
Vent liner must not block opening where other appliance's vent
connectors enter chimney. Blocked openings will cause combustion products to collect in
the structure, resulting in damage, injury or death.
WARNING:
WARNING:
WARNING:
WARNING:
WARNING:
Do not use unlined masonry chimneys. These increase risk of
condensate formation, which may cause chimney to deteriorate, allowing combustion
products to collect in the structure, resulting in damage, injury or death.
G. VENT TERMINATION
1. Terminate all vertical vents with a listed vent cap or roof assembly unless local codes
FIGURE 12
FIGURE 11
