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ULC 609
- Standard for Low Temperature Vents Type L and PL (CAN/ULC-S609:2016)
- standard by Underwriters Laboratories of Canada, 07/01/2016
- Publisher: ULC
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The requirements of this Standard 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, and 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.