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Old 07-13-2015, 11:33 AM   #1
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Default Poly pex fittings

What's the consensus on using poly pex fittings in a standard baseboard heat loop. I have always thought it's was probably not a good idea. But I've seen them used on jobs that I did only the plumbing and not the heat. All the ones I've seen used the ss cinch clamps.
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Old 07-14-2015, 06:54 PM   #2
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Quote:
Originally Posted by paultheplumber1 View Post
What's the consensus on using poly pex fittings in a standard baseboard heat loop. I have always thought it's was probably not a good idea. But I've seen them used on jobs that I did only the plumbing and not the heat. All the ones I've seen used the ss cinch clamps.
I would never use them in heating. Baseboard would be the worst due to it being the highest temp system. Even if rep said it was approved I would not.
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Old 07-17-2015, 04:03 PM   #3
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Do the poly fittings have an O2 barrier? If not they shouldn't be used
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Old 07-23-2015, 06:17 PM   #4
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Originally Posted by paultheplumber1 View Post
What's the consensus on using poly pex fittings in a standard baseboard heat loop. I have always thought it's was probably not a good idea. But I've seen them used on jobs that I did only the plumbing and not the heat. All the ones I've seen used the ss cinch clamps.
Uponor(Wirsbo) uses them for most of their fittings
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I would never use them in heating. Baseboard would be the worst due to it being the highest temp system. Even if rep said it was approved I would not.
Have you seen the torture tests they do on them. Thats all I use. No need to worry about the cracking in half like the brass does. Uponor(Wirsbo) infloor manifolds use them.
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Do the poly fittings have an O2 barrier? If not they shouldn't be used
For how small of surface area it is, it doesn't matter.
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