A: Sounds like you have a good plumber, or he or she may just be following new local codes. When water is heated it expands, and if there is no place for the expanded water to go it may cause the ...

This rule also applies to hot water heating systems; when a boiler heats the water in a hydronic heating system, the expansion tank allows for the water to expand without the pressure relief valve ...

Why does the water heater in my new house have another small tank hanging off the side of the pipe above it? That is an expansion tank installed on the water supply pipe to the water heater. Its ...

As I mentioned in last week's blog post, expansion tanks are required when water in a home can't expand back into the water main. This might be caused by a check valve, a backflow preventer, or a ...

If you've had your water heater replaced in the past 10 years you've probably noticed in addition to purchasing a new water heater your plumber informed you an expansion tank or valve was needed.

No one ever checked the water pressure at the faucets, nor the limit on how much the expansion tank could hold. The reader believes the tank is full and says he fears that if the straps gave way, or ...

Feb. 15 -- Each week, Good Morning America's home-improvement guru Ron Hazelton will answer your questions about maintaining and upgrading your home. Click here to submit your own question. Q: Dear ...