Does Your Water Heater Need A Thermal Expansion Tank? What You Need To Know
If you have a water heater, you may have heard about a thermal expansion tank. You may be wondering what this element does and if you need to have one on your heater. A thermal expansion tank may help you avoid water heater repairs depending on several factors. Here is what you need to know: What Is a Thermal Expansion Tank? A thermal expansion tank is a small tank that is installed on the cold line of a water heater.