cpvc

leo g_13

cpvc is rated for 180*. and kevin, it is, as far as i can tell, not oxygen permeable.

leo g

maha

cpvc

Hello There,
I was wondering if I can use cpvc instead of pex. I have a situation where I need to run some lines for heating a second floor deck. The floor is concrete with b deck. So I will be running parallel to the deck. Ceiling is exposed, which is why I don't really want to use pex.(looks ugly and has to be supported to often.)

kevin

i would in no...

circumstance use cpvc.If its going to be exposed just use type M copper...once you would heat up the cpvc it will droop anyways. it also does not have an O2 barrier on it and the glued joints?? thats my 2 cents kpc

leo g_12

bow

manufactoring has produced a cpvc manifold for radiant. it is basically just T's that you cement together to what ever length you need c/w adaptors for pex hook-up, air purgers, etc. maybe check with them about using the pipe for actual runs. let us know what you find out!

leo g

kevin

really..

let us know. I wonder about the oxygen barrier thing.kpc

mp1969

Wirsbo sells 3/4" and 1" in straight lengths and it can be installed neatly, they even offer hangers that keep the centers exact. Most conventional pvc has joint failure above 150 degrees , and higher temps will require the cpvc to be hung or supported more often.

The only place I use cpvc is for softener discharges and condensate drains. I would opt for copper before I would install cpvc. As you can tell this is based a great deal on personal preference !

MP 1969

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hr

Consider

using PAP pex al pex. It makes for a nicer looking job than regular pex. I use black colored if it is exposed, for UV protection.

I don't think Wirsbo offers the barrier pex he pex in straight lenghts, do they?

Is CPVC listed for 180 or hotter temperatures? Also glycol cannot be used in PVC or CPVC pipe if this is a consideration.

hot rod

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Dale

PVC is so cheap

I would just put the pex inside it and use the PVC as a casing, that way you can paint it and keep it absoloutely straight.