The Ontario Building Code | Hot Water Temperature

9.31.6.1. Hot water temperature

(1) Where a hot water supply is required by Article 9.31.4.3., equipment shall be installed to provide to every dwelling unit an adequate supply of service hot water with a temperature range from 45°C to 60°C.

(2) An electric storage-type service water heater shall have a minimum set storage temperature of 60°C.