Copper to PEX

I have a forced HW system. In my basement I have suspended 1 inch copper doing a big loop around the home. I want to remove this and switch to PEX. This will allow me to move the piping within the studs for a finished look. My questions...

1-Since I have 1 inch copper. What diameter do I have to go to in PEX to get the same volume? Or is the 1 inch over kill anyways?

2-I have a main loop with monoflow tees at each radiator? should I just plumb these monoflows back in cause they fo not make a PEX equivalent? Another solution is to have a manifold for this zone that has separate PEX to each radiator? Is this a good idea?

heat

What temperature are you running the system at? 1" PEX is almost the equivalent of 3/4" copper. If you use a manifold system you may have to provide a means of controlling the flow to each radiator to give proper balance to the heat distribution.

Looks around 150 - 180 deg. Wow I did not know they made 1 inch PEX. So what would I need to do if I currently running with 1 inch copper to do the convert? They have manifolds with flow controls. I can go that route. What do you think?

Gonna be paying out the wazoo for the tool you'll need for this PEX repipe.

You still need the mono-flow tees which means that you will have to swett male adaptors into each tee and go pex from there. What you are thinking about will cost quite a bit of money and be a huge hassle to do if you don't have the tools and experiance to do it.

kingsotall said:

Gonna be paying out the wazoo for the tool you'll need for this PEX repipe.

Click to expand...

you can get the tool for 80 bucks for the steel compression ring system. The copper ring toll will cost you more.