Plumbcatastrophe
New Member
I've read all the links and I think I'm on the right track, but I'd like to check. 40 gal LPG water heater, says the Det 5 from Watts will work, so I had a space issue to contend with. Cold line comes right out of wall behind water heater, very little room to mount above tank because of venting. So, looking at Watts diagram for Det 35, I fitted T, ran about 3' of copper to the side for expansion tank, and then off the end of T I affixed bib for cold water connection to tank. So, line in, T, extension for expansion tank, bib for water heater, placing the expansion tank (with an extension) between PRV, shutoff, and bib for water. Am I okay?