Thermal Expansion Tank

When cold water is heated, the water expands. This thermal expansion occurs in all systems that have tank-type water heaters. Thermal expansion can increase water pressure and cause expensive problems as a result of water flowing back into the main water supply to the house.

Therefore, when it is time to replace your water heater, Georgia State Code Restrictions require the addition of a thermal expansion tank. Thermal expansion tanks prevent the damage and eliminate possible problems before they happen by giving water a place to go when thermal expansion occurs.

In fact, the addition of a thermal expansion tank at the time of a water heater's replacement is so essential that for your safety we will not install a new water heater without it!