Quote:
Originally Posted by Drake
Thought I stated that radiant loop is closed system and that DHW will be separate. I have a Airtrap DHWHP for DHW. Do you believe a plastic tank is bad? Our elec COOP recommends the Marathon as their first choice for rebates. My first floor loops will also be 5/8" O2 barrier pex, as I have 900' I got surplus from a friends project, which will carry a higher volume of fluid than 1/2". This friend also has a bunch of solid crimps left over. Are these better/worse than the clip rings?
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5/8" tubing is fine but only if it is free and then you can do 2 loops as you were planning before. Is it 5/8" "nominal" or real 5/8" OD? If it is 1/2" nominal it is .625OD.
I prefer the ring clips which is what comes with all proper manifolds. Pex crimp rings are for permanent things but can come on mini valves for the loops (please use valves on each loop) for balancing and getting the air out.