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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
- Publisher: ULC
$60.00$120.00
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.
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.
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