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As the title says, I am renovating my basement and decided to replace my main floor hot water baseboard heating loop with 1" Oxygen barrier pex, I read up on some things, blah blah job came out pretty good question is I have a lot of expansion, I am trying to keep it close as possible to the beams etc as I don't want it to be resting on my drop ceiling and I want it snug as possible because I want to get good height from my ceiling as well... I guess my question is how do you guys work with this stuff with the expansion? Of course after I did the job I read some more and realized it expands a ton, so I got nervous took some of the talons I had holding it up off to give it some play and tested the system and lo and behold it looked good but some spots were stressing the old black pipe I didn't need to change in sections, Some of it started hanging way too low so it would be touching my ceiling etc. How do you guys do this? I mean if I have to do it again so be it, I just thought it be a good learning experience and I'd still be ahead doing it twice than if I did it in copper.