Why Your Plumbing System May Need A Thermal Expansion Tank For Safety Reasons
If you have a fairly new home, your hot water heater might already have a thermal expansion tank on it, since one is usually required by local building codes. If your hot water heater and plumbing are old, there may not be a tank present. However, you may want a plumber to add one for safety reasons. Here's the purpose of a thermal expansion tank and how a plumber installs one.