A couple of heatpex questions

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Rearscreen

Minister of Fire
Dec 21, 2014
800
Vermont
Years ago I installed 1/2 oxygen barrier pex in my energy star home. Today I live in a not so energy star home. The joists here are 2 feet on center. Ideally I should run 3 lines per bay but running it would be a nightmare. Should I jump to 3/4", is there an advantage?
Also, any good sources to purchase pex online at a good price? Are some brands better than others? Thanks in advance.
 
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