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Director's Advisory FS-102-07 & Clarification Notice

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TSSA Advisories Director's Advisory FS-102-07 & Clarification Notice - Variance Conditions for Vents Systems that were Installed Prior to August 1, 2007 but Appliance Not Activiated Until After August 1, 2007



Advisory FS10207


*Click image to enlarge.

Clause (8.9.5) - Venting systems, or total vent run if less than 3 ft (900mm), that employ plastic vents shall be installed such that the first 3 ft (900mm), from the appliance flue outlet is readily accessible for visual inspection except for direct vent appliances such as fireplaces that are intended to have short vent lengths to be concealed for decorative purposes.

Clause (8.9.6) -
(a) Until July 1, 2008, vents constructed using plastic piping shall be certified to ULC S636 except for special fittings (non standard vent sizes and components) which may include:
  a. entire vent systems supplied with the appliance that are not comprised of standard vent sizes and components;
  b. transitions with or without condensing lines; and
  c. termination kits.
(b) After July 1, 2008, vents constructed using plastic piping shall be certified to ULC S636.

There have been interesting amendments to Clauses 8.9.5 and 8.9.6, regarding plastic venting.
Download Questions and Answers regarding ULC S636 and plastic venting.

Download and print the Application for a Variance/Deviation FS09533, to apply.

Download the Clarification Notice For FS-102-07