Standard For Factory-Built Chimney Connectors And Wall Pass-Through Assemblies

Designation Number:
CAN/ULC S641
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 1: The  standard development activity for this NOI was updated by the responsible SDO on April 20, 2021.

Note 2: 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 apply to factory-built chimney connectors and wall pass-through assemblies that do not require field fabrication.

1.2 The factory-built chimney connectors and wall pass-through assemblies are for use with gas, liquid and solid-fuel-fired residential appliances and building heating equipment where the flue-gas temperatures do not normally exceed 650 °C.

1.3 Factory- built chimney connectors are intended for use inside buildings to form a connection from an appliance to a factory-built chimney suitable for use with solid fuel, or to a masonry chimney.

1.4 The factory-built chimney connectors and wall pass-through assemblies covered by this Standard are intended for installation and use in accordance with the applicable Codes and Regulations as determined by the Authority Having Jurisdiction (AHJ), such as:

a) The National Building Code of Canada;

b) CSA B139 Series, Installation code for oil-burning equipment;

c) CAS B149 Series, Natural gas and propane installation code; and

d) CSA B365 Series, Installation code for solid-fuel-burning appliances and equipment.

Project need:

ULC-S641 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.