ULC 635 Standard for Lining Systems for Existing Masonry or Factory-Built Chimneys and Vents (ULC S635:2016)

standard by Underwriters Laboratories of Canada, 08/01/2016

Full Description

This National Standard of Canada covers lining systems for existing masonry chimenys, which may or may not incorporate a liner of fire-clay tile, and existing factory-built chimneys and vents.Lining systems are classed as follows:
Class 1 - For the venting of gas-fired appliances where the temperature of the flue-gas products in 135 C or above, but does not exceed 245 C;
Class 2 - For the venting of oil and gas-fired appliances where the temperature of the flue-gas products does not normally exceed 300 C; and
Class 3 - For the venting of oil-, gas- and solid-fuel fired appliances where the temperature of the flue-gas products does not normally exceed 650 C.

Product Details

Edition: 3 Published: 08/01/2016