PART 6 — HEATING, VENTILATING AND AIR-CONDITIONINGUpdated for the 2024 Ontario Building Code
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6.3.3.1.Requirement for Venting
(1) Except as provided in Articles 6.3.3.2. and 6.3.3.3., the products of combustion from oil-, gas and solid-fuel-burning
appliances shall be vented in conformance with the requirements in the applicable appliance installation standard listed in
Article 6.2.1.5.
(2) Except as provided in Article 6.2.1.5., vented products of combustion, other than those referred to in Sentence (1),
shall be discharged away from the building, so as not to re-enter it, to a distance not less than
(a) 2.15 m above sidewalks and driveways,
(b) 3 m from outdoor air intakes,
(c) 3 m horizontally or vertically from doors and operable windows, and
(d) 3 m horizontally or vertically from occupiable outdoor spaces, excluding maintenance spaces.
(See Note A-6.3.3.1.(2))
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.