* Based on our reasonable estimate of water heater related energy and operating savings that may be realized by upgrading from a 10 year old - less efficient water heater, to a new ENERGY STAR® qualified water heater.
Conventional Vent water heaters, otherwise known as direct vent water heaters, burn fuel to form the heat used to create warm water. The hot byproducts of the burning fuel are then transferred to the outside of the home via the exhaust pipe or chimney. Learn more
Power Vent water heaters use a fan to remove exhaust gases from the hot water heater. If your water heater is installed in a location that doesn't have access to a vent or chimney, a power water heater is the only gas alternative available. Learn more
Electric water heaters use electricity to heat water. These heaters do not require a vent and may therefore be installed in various locations in your home. It takes a little longer to heat water using electricity than with other energy sources, but to compensate, electric water heaters tend to have larger storage volumes. Learn more
Tankless water heaters provide an instant, endless supply of hot water. These systems do not require a holding tank because they function on-demand. They also have a lifespan that's twice as long as traditional systems because the risk of rust and corrosion is significantly lower. Learn more
All repairs, parts and labour are included in your monthly fee.
To ensure your tank operates at its maximum efficiency.
Our Customer Service representatives are available 24 hours a day/7 days a week to ensure your complete satisfaction.
National is committed to providing you with expert and courteous service from our licensed and certified TSSA technicians at no additional cost.
National will upgrade your venting pipes at no extra cost in order to ensure your water heater meets the current TSSA code.