Twin Pipe PVC/CPVC Vent Installation
This newly certified vent system is comprised of PVC/CPVC pipes, fittings and either the IPEX System Low Profile Termination
Kit Assembly (System 636), snorkel termination, or tee termination.
Installations must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 for U.S.
installations or CSA B149.1 for Canadian installations. DO NOT use cellular core PVC, CPVC, or Radel based pipe materials
for the exhaust vent. Vents MUST be of solid core pipes ONLY.
Use only the materials listed in this section for vent, air intake pipe, and fittings (See vent and air piping materials table).
Failure to comply with this warning could result in property damage, personal injury, or death.
PVC venting cannot be used if the following conditions exist:
The water heater is installed in a recirculation system and the thermostat setting is greater than 150 F (65.5 C).
The water heater is used in a combination domestic water and space heating application that requires a thermostat
setting greater than 150 F (65.5 C).
WARNING
WARNING
NOTICE
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