Standard for Low Temperature Vents Type L and PL

Designation Number:
CAN/ULC S609
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
New Edition
ICS code(s):
91.060.40
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

Note: The scope for this NOI (originally published on March 16, 2021) was updated by the responsible SDO on July 27, 2021.

1.1 These requirements cover the design and construction of Type L vents intended for the venting of flue gases having temperatures not exceeding 300 °C, from fuel-burning appliances certified for use with Type L vents.  The vents may also be used where Type B gas vents are used. They are intended for installation in buildings to provide a passageway for conveying flue gases to the outer air from the above-described class of appliances.

1.2 These requirements also cover the design and construction of Type PL vents for use in residential dwellings for the venting to the outdoors of the products of combustion from certified automatic particulate-fuelled space heaters.

1.3 Vents covered by this Standard are intended for installation in accordance with applicable Codes, such as:

  1. The National Building Code of Canada;
  2. CSA B365, Installation Code for Solid-Fuel Burning Appliances and Equipment;
  3. CSA B139. Series – Installation Code for Oil-Burning Equipment; and
  4. CSA B149 Series – Natural Gas and Propane Installation Code.

Project need:

ULC-S609 would benefit from some minor technical and editorial edits to update the standard's format with current ULC Standards practices. It has been proposed to remove edition dates from the Reference Publications sections as has been standard practice on newer ULC Standards development activities.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.