Pex substitute?

[MinnesotaJon]

I just installed a new boiler, I ran my thermopex up in the corner of the garage. From there I ran across the top over to my garage heater then in the house and so on. Well I ran emt real nice for all my electrical. So I wanted my pex to look nice too ran it all straight and pretty. Which sucked one inch pex does not cooperate. But it looked nice, until I fired up the boiler! I didn’t realize pex grew so much when it got warm. It sagged between every stud hanger. Is there a rigid pipe I can use for my long straight garage runs? I know copper would work but also cost as much as the boiler! Thanks for the input.

 

[uniballer]

CPVC might work, but it still expands and contracts due to temperature changes (maybe about half as much as PEX). But it is much less forgiving in terms of cracking, breakage, etc.

 

[Maintenance supervisor]

Cpvc is compatible with pex. A couple of shark bite connections shoild get you up and running in no time.

 

[MinnesotaJon]

Cpvc with shark bites! I like that I figured cpvc would work but didn’t like the idea of glued joints. The sharks bites must work good for boiler applications a lot of the boiler suppliers sell them.

 

[panolo]

Depends on what temp you run your boiler at. CPVC is 200 degrees and if you are running around 190 all the time I don't doubt it will get brittle much quicker than pex. Personally I'd just clean up the pex runs.