PEX question

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Old 02-07-17, 10:21 AM
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PEX question

I am taking Down a wall in my kitchen which has a radiator on it. So I am gonna remove it completely. Can I use the Orange PEX to connect the section back together that had the radiator before? It's about a 6 foot section in my basement along the bottom of the floor joist..
 
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Old 02-07-17, 10:57 AM
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You would need to use oxygen barrier PEX for a hot water heating application. (I would not use PEX on a steam system). There is a brand of barrier PEX that has Orange in the name, but what is important that it be oxygen barrier PEX, regardless of color. Make sure you use fittings compatible with the tubing you buy.
 
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Old 02-07-17, 03:49 PM
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Should work fine. Make sure you cut the end of the PEX nice and square (it's worth buying the PEX cutters if you don't have PVC cutters) as the sharkbites might not seal well if the cut is angled or rough.
 
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Old 02-07-17, 04:20 PM
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Thank you for your help.

My buddy has pex cutters
 
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Old 02-08-17, 01:34 PM
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If the existing supply pipe is copper, I would sweat in a piece of same size copper pipe using 2 couplings. I would do this in the basement. Would do the same if the supply pipe is other material. You don't want to mix copper and other material as their expansion rates due to heat are different.
 
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Old 02-10-17, 09:30 AM
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So I shouldn't use pex then unless the whole system is pex? The piece I'm cutting out is copper as is the rest of the system. Quess I need to learn how to sweat pipe!!! lol
 
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Old 02-10-17, 12:15 PM
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You can use a piece of PEX even though the rest is copper. It's true PEX expands/contracts more than copper; just allow for it by using the proper PEX tubing supports, which allow the pipe to move a little without making noise.
 
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Old 02-11-17, 03:58 AM
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Thanks again for all your help..
 
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Old 02-11-17, 02:56 PM
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Worked like a charm!!!!!!

Thanks again!!!!
 
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Old 02-11-17, 05:37 PM
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Good to hear; thanks for the update!
 
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