Onix Tubing Repair

Alan (California Radiant) Forbes

One of my customers is getting a solar system installed and they punctured his Onix radiant tubing. What fittings can I use to repair this, if possible? TIA

GroundUp

They sell fittings specifically for Onix, any Watts supplier should be able to get them. A quick Google search says Supply House has them. Personally though, a regular old hardware store barbed fitting always does the trick for me.

dko

WR_Onix_Instructions_Repair_TorqTite-EN.pdf

Watts_Radiant_81000509_Manual.pdf

https://www.jupiterheating.com/watts-radiant/onix-fittings.html

psb75

Wow, looking at those Onix repair components—especially the connectors—I can see why I have so much trouble with radiant heat loops getting PLUGGED! Of course the lack of O2 barrier doesn't help either.

hot_rod

https://forum.heatinghelp.com/discussion/comment/1806832#Comment_1806832

The current Onix does have an aluminum O2 barrier, much the same as PAP. Which is protected and should be more durable than an EVOH layer on the outside of heat pex.

The original Entran, Entran 2 and TwinTran did not have any barrier, basically EPDM tube. Entran 3∆ had an EVOH barrier inside. There may have been a version with a Kevlar layer at one point.

hot_rod

https://forum.heatinghelp.com/discussion/197512/onix-tubing-repair

Is it in a slab? I put a heat shrink over the repair, if so.

Alan (California Radiant) Forbes

This tubing was installed in PVC conduit from the mechanical room to the manifolds and the solar installers snagged it with a lag bolt. I've never seen tubing installed in a heavy duty conduit that way. Usually, it's just insulated.

hot_rod

a good save! Nice job cutting the windows in the PVC

GGross

Credit to the installer trying their very best to protect that tubing! It didn't work, but it was as good an attempt as possible

mattmia2

https://forum.heatinghelp.com/discussion/comment/1807674#Comment_1807674

I mean steel would have done a much better job.

mattmia2

Balsawool. I hate that stuff.