sleeving radiant tubing

j_7

1" it is; there's a straight line of sight between the floor & the manifold, maybe only need the last elbow where it turns up into the manifold...thanks alan

j_6

sleeving radiant tubing

manifold is about 50 feet away from the radiant floor and the supply/return tubing has to route thru a 10" concrete slab to the isolated room that is getting radiant floor heating/cooling

the room will have a depressed concrete slab to accomodate 1.125" warmboard as a subfloor and the construction sequence will have the 10" slab complete 10 months before the warmboard & tubing can be installed

can we install a 1" or 3/4" sleeve in the 10" slab so we come back in 10 months, install the warmboard & push (or pull) the 1/2" tubing thru the sleeve & back to the manifold to avoid a joint at the transition between the 10" slab & the depressed slab

Alan(CaliforniaRadiant)Forbes

Shouldn't be

a problem, just make sure you provide enough room for all your loops, i.e. a 1" sleeve will only accomodate one piece of ½" tubing.

If you've got a 10" slab, I'd use ABS or PVC pipe as the conduit.

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EJW

Sleeve

Just don't do it like this. EJW

Tombig_2

Pex Sleeve

Of course you're going to use electric conduit fittings!! Two 45's instead of a 90 is a good idea but with only one bend a 90 should be ok. Push/pull with a rigid electrician's fish tape. Insulate the 1" is always a good idea.