Expansion Tank - Location and Size
Posted by Kent on January 26, 2003 at 04:40:34:
Installer put in a new GE 50G gas water tank with a 2.1G 30psi expansion tank (Arrow Industries model 12A101), it looked small, is it the "correct" size for the heater? Location is Kent WA.

Also, the installer put a Tee on the cold water inlet of the heater and put the expansion tank on one end of the Tee, and cold water line on the other end. On all of the installation drawings I have seen or posts I have read, they all show/say the expansion tank installed between the cold water inlet and the cold water shutoff valve - this make sense to me, however, the one I have, the expansion tank is not exactly between the water heater and the main shutoff, would this work? Is it "correct" or "acceptable"?

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