CAN/ULC-S641-M87

Applies to Factory-Built Chimney Connectors which do not require field fabrication. They 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 degrees C. They are intended for use inside buildings to form a connection to a factory-built chimney suitable for use with solid fuel, or to a masonry chimney.