Many people don’t actively think about what sort of water heater is in their home, but you’ll need this information to figure out if you should get a thermal expansion tank. For example, if you have a tankless water heater, you probably know this, and you don’t need one of these extra systems.
However, a traditional tank-style water heater could benefit from a thermal expansion tank, particularly ones that are on a “closed” plumbing system. With this type of system, water can’t return to the city water lines once it enters your home. This means that the pressure has no place to escape.
In fact, some manufacturers will even void your warranty if you are on a closed system and don’t have a thermal expansion tank installed. In some cities across the country, this is also a requirement.
Not sure if you have a closed or open system? If your home has a backflow prevention device installed on its main water line, which prevents water from flowing back to the water supply, you have a closed plumbing system.
If you need a thermal expansion tank install in your home, or have questions about this system, contact us. Fast Water Heater will inspect your system, answer your questions, and provide you with a quote for the work.