Not all water heater providers have the same terms of agreement. For example, a provider may not disclose that switching your water heater will lock you into a contract that lasts as long as 15 years.

In some parts of Ontario, sediment build up can result in sub-optimal performance of your water heater. If you have any concerns with respect to the operation of your rental water heater, call you water heater provider for service.

Most water heater providers offer similar brands of water heaters and newer storage-type water heaters only offer marginal energy savings over older models. The current industry standard for the energy efficiency rating is 0.62 compared to older tanks that are 0.58.

New water heaters often offer only marginal savings, when you take into account the additional cost of a new water heater as well as the disposal of the old unit including the disposal of packaging.

Switching from an old storage-type water heater to a new one can be harmful for the environment. For example, some providers dispose of older models in landfills, rather than recycling them, while the energy savings from a new unit are often only a few percentage points.