Why does my water heater need an expansion tank?
Like we mentioned in the beginning, a closed system creates a single path for water to flow into (but not back out of) your home. However, when water is heated, its volume expands (this is called thermal expansion ). When the water volume expands, it puts extra pressure on the tank.
Do you need an expansion tank in Texas?
If you live in Texas, you need an expansion tank as well as a pressure regulation valve. Texas has a statewide law about these matters, and it’s part of the overall building code for any home in the area. Do I need more than one water expansion tank for the multiple heaters that I have?
What is the temperature of an expansion tank?
This expansion tank is designed for operation on the inlet cold water line and is limited to a maximum working pressure of 150 pounds per square inch (psi) is rated to NSF/ANSI-61 DHOT 1(40° F) . The continuous temperature on the tank cannot exceed 140° F.
Can a thermal expansion tank cause water damage?
In a closed system, this extra water pressure from thermal expansion can cause the most damage because the extra water pressure cannot push back into the city water supply and therefore has nowhere to go. Most cities require that residential closed plumbing systems be equipped with expansion tanks.
Can a water heater be used without an expansion tank?
In fact, some manufacturers may void your water heater warranty if you have a closed plumbing system without an expansion tank. Now that you know why you need an expansion tank, let’s look at how to tell if you have a closed plumbing system.
If you live in Texas, you need an expansion tank as well as a pressure regulation valve. Texas has a statewide law about these matters, and it’s part of the overall building code for any home in the area. Do I need more than one water expansion tank for the multiple heaters that I have?
How does an expansion tank help your plumbing?
Your expansion tank can help you to save your system. The expansion tank serves to take on the extra volume as well as any fluctuations in the incoming water supply pressure. The expansion tank serves as a backup system to prevent overworking your plumbing.
In a closed system, this extra water pressure from thermal expansion can cause the most damage because the extra water pressure cannot push back into the city water supply and therefore has nowhere to go. Most cities require that residential closed plumbing systems be equipped with expansion tanks.
