What is thermal expansion?
Whenever water is heated it expands and this is called thermal expansion. Thermal expansion can cause the pressure to increase on a plumbing system where a backflow device has been installed. To prevent this problem a thermal expansion device is installed on the cold water side of interior plumbing to allow for this pressure relief. The fix can be an inexpensive one. CWW offers a thermal expansion device at our cost of $15 that may be obtained at our business office. It comes with simple instructions on how to connect the device to your washing machine’s cold water line. If you prefer, you may consult with your plumber for alternate protection devices and installation.
Thermal expansion is any change in the volume of a material when it is subjected to changing temperatures. Vinyl is extremely vulnerable to thermal expansion, while FIBREX and wood are not. Excessive thermal expansion can lead to warping or bowing of the window frame, resulting in drafty and fogged windows.
