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In slab and staple up radiant design help
We are about to start building our new house next month and I’m adding radiant heat in the basement slab and also for the first floor. House is a 1850’ ranch, in Northeast Pa. R23 in the walls, R50 in the attic, basement ceiling R30. Basement is 10” poured walls that will be finished later on. I’ll be adding 2” XPS under the slab and on the sides, then tying the pex to the wire mesh prior to them pouring concrete. I’ve been on Slant/fin going over my heat loss calculations. But for now I want to at least get the rough in done while construction is happening. Heating the system will happen later on, as a closed system with a boiler of some sort.
A couple questions I have are:
I’ll be using 1/2” O2 pex, 12” on center in the slab, and the same for the first floor in the joist bays stapled up with heat transfer plates at 8” on center. I’m planning 1 zone for the basement, and 2 zones for the first floor.
What type of Pex is recommended for this install? I have recieved a couple quotes from some online suppliers and they all recommend using different types of Pex.
Where can I go to get a design layout for this install and/or purchase everything from? I know I’ve read some reviews on here regarding the companies that have sent me quotes, and I don’t want to break any rules, so I won’t mention any sites. But just looking for a little guidance so I can place the order for everything when I’m ready.
Any other tips recommended for this install would be appreciated.
Figured I would ask here since there is a ton of knowledge on the forum.