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Part Number 550-110-710/0107
15
GOLD CGi Gas-Fired Water Boiler — Boiler Manual
Venting — Direct exhaust — components3c
Obtain vent system components
1. The following special gas vent systems comply with UL-1738 and ULC-
S636 standards and are certified by CSA as the only systems suitable for
use with CGi boilers (all 3” diameter):
• Heat-Fab, Inc.
Saf-T Vent
®
• Flex-L International, Inc. StaR-34
• Z-Flex®, Inc. Z-Vent II
• ProTech Systems FasNSeal™
Use only the vent starter of the same manufacturer as
the vent components. Do not mix components from
different systems. The vent system could fail, causing
flue gas spillage, resulting in severe personal injury or
death.
2. Select vent method based on page 14 and installation requirements.
3. Refer to
Table 4 for maximum vent run lengths and number of elbows.
Do not exceed data in Table 4.
4. Select vent components from separate
CGi, Cgs & GV Vent Component
Supplement. All components, including the vent starter, must be of
the same vent manufacturer. Do not mix components.
Table 4 Maximum vent length