Code Library › Volume 1 › Section 9.32 — Ventilation
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.32.3.9.Application of Carbon Monoxide Alarms (See Note A-9.32.3.9.)

(1) Article 9.32.3.9A. applies to every building that (a) contains a residential occupancy, and contains a fuel-burning appliance or a storage garage, or (b) contains a residential occupancy and is served by a forced-air fuel-burning appliance not contained within the building. (2) Articles 9.32.3.9B. and 9.32.3.9C. apply to every building.
← Previous9.32.3.8. Protection Against Depressurization (See Note A-Next →9.32.3.9A. Location of Carbon Monoxide Alarms

Common questions about this part of the code

How is the principal ventilation fan sized by number of bedrooms in Ontario?What are the exhaust fan requirements for bathrooms and kitchens in Ontario?What are the minimum openable window areas for natural ventilation in Ontario?

Understand this provision in seconds

BUILDAiD Assist explains any article of the building code in plain English — with exact citations, exceptions and related requirements.

Try BUILDAiD Beta

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.