Aluminum Lined PEX for Hydronic heating good or not??

wayne_23

aluminum lined Pex for Hydronic Heating Good or not??

jalcoplumb_7

Good.

Use it a lot as well.

ScottMP

Good

Use it alot also.

Scott

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In some cases

Tha PAP products shine. I like it for baseboard and panel radiator jobs. Less expension movement makes it a nice match for transfer plates and UltraFin applications. Large sizes in straight lengths are great for indirect and boiler room piping.

I don't like it for in slab applications. It dents, and sometimes kinks fairly easily when stepped on as it crosses rebar or rewire.

We have seen some pics of de-lam issues from time to time here.

My favorite is the Viega FostaPex. It is a full diameter pex with the aluminum layer around the outside, no de lam issues to worry about. It also has a protective PE layer around the aluminum for a very tough tube. The OD is a bit large for transfer plate installation, however.

They also have a nice fitting system. Good looking, stainless steel crimp rings and thick brass barbed fittings.

hot rod

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