The Ontario Building Code | Piping in Shafts
6.2.9.6. Piping in Shafts
(1) Where piping for heating or air-conditioningsystems is enclosed in a shaft, the requirements of Article 3.6.3.1. for shafts shall apply.
6.2.10. Refrigerating Systems and Equipment for Air-Conditioning
In Plain Language
Where heating or air-conditioning piping is enclosed in a shaft, the general shaft fire-separation requirements in Article 3.6.3.1 apply, treating mechanical piping shafts the same as other vertical service spaces.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.