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Old 10-15-2011, 09:40 PM   #1
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boiler expansion tank placement


I have an older 20 to 25 year old Weil McLain boiler. I had my house broken into and they stole my copper plumbing. I replaced all the plumbing but I don't know where the expansion tank goes. It looks like the order is - on the inlet side, shut off valve, pressure regulator then tee into the boiler and on the other side of the tee the expansion tank. There is no other inlet available on the boiler. I was told the expansion should be on the return, but the boiler is piped in black pipe, the inlet was all copper. I don't see any other place to install the tank. If it makes any difference, all the radiators have automatic air relief valves. I don't have any zones. Any help would be appreciated.

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Old 10-16-2011, 04:31 AM   #2
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boiler expansion tank placement


Just before the circulator.

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Old 10-16-2011, 06:57 AM   #3
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boiler expansion tank placement


Can you provide picture?
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Old 10-16-2011, 07:02 AM   #4
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boiler expansion tank placement


Holy crap! I've heard of this happening to homes under construction but not like this. Did the thieves at least have the courtesy to shut off the main water supply valve? Are you replacing with copper or CPVC?

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I had my house broken into and they stole my copper plumbing.
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Old 10-16-2011, 07:46 AM   #5
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Holy crap! I've heard of this happening to homes under construction but not like this. Did the thieves at least have the courtesy to shut off the main water supply valve? Are you replacing with copper or CPVC?
Yup this is a very common problem lately with Copper and aluminum there getting ballsy and Taking it from people who have been living for years it's just not newly built houses.
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