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Anti-Scald Device Now Mandatory

Anti-scald BathEffective Sept. 1, 2004, all water heaters replaced or installed are required to have an “anti-scald” device installed. A change was made to the Ontario Building Code making anti-scald devices mandatory.

How does it work?

The water in your hot water tank needs to be maintained at 140ºF (60ºC) to prevent bacteria growth. However, water at this temperature can scald within a few seconds. Thermal master mixing valves, also known as anti-scald devices, blend hot and cold water to deliver water out of the tap at a temperature of 120ºF (49ºC). You may choose to have “full-strength” hot water piped directly to the dishwasher and other appliances.

The new regulations

Regardless of whether your water heater uses electricity or gas, the device is now required before any water heater tank can be replaced or installed. The anti-scald device becomes a permanent addition to the plumbing system; therefore it is the responsibility of the property owner to ensure that the device is installed and maintained.

Under the new regulations, we are not allowed to install any replacement water heaters that do not have an anti-scald device. In the event that your rental water heater requires replacement, you have two options.

1. You can have the device installed by a Peterborough Utilities Inc. licensed contractor at a fee of about $180 – $200 when the tank is replaced.

2. Or, you may choose to hire your own plumber to install the device. After the device has been installed, contact Peterborough Utilities Inc. for an appointment to have your water heater installed.

Changes put in place by the Ontario government

We realize there is a significant cost associated with the installation of the anti-scald device. However, the change has been enacted by the government of Ontario and we have no choice but to follow the regulations.

Some other water heater rental companies may charge less than Peterborough Utilities Inc. to install the device. However, you should know that Peterborough Utilities Inc. provides the device at cost. Our fee includes labour, materials, and the $50 City of Peterborough plumbing permit fee which includes an inspection after installation. If you get another company to install your device, make sure you’re getting all of these important components.

If you have any questions, please contact us at 748-6900.

For more information about the Ontario Building Code, contact the
Building and Development Branch, Ministry of Municipal Affairs and Housing

Telephone: (416) 585-6666