The Ontario Building Code | Temperature Control Devices
7.6.5.3. temperature Control Devices
(1) A water distribution system supplying hot water to any bathtub, shower or hand basin that is accessible to a patient or resident in a Group B, Division 2 or 3 occupancy or a resident of a group home,home for special care or residence for adults with developmental disabilities shall have one or more temperature gauges and control devices that are,
(a) accessible only to supervisory staff, and
(b) capable of being adjusted to ensure that the temperature of the water supplied to the fixturesdoes not exceed 49°C.
Section 7.7. Non-Potable water Systems
7.7.1. Connection
In Plain Language
Temperature control devices used to limit hot water temperature must meet the requirements set out in this article, ensuring they reliably prevent scalding-hot water from reaching the fixture.
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.