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corzy 10-28-2012 10:12 PM

in floor heat
 
Hey guys, im thinking about going with the radiant heat in my garage, can you get the plastic water pipe from home depot, or is it a special order, also the wire mesh, where would you get that?
thanks, if you could just send a link to where to get it would be great

TheEplumber 10-28-2012 10:24 PM

Quote:

Originally Posted by corzy (Post 1039981)
Hey guys, im thinking about going with the radiant heat in my garage, can you get the plastic water pipe from home depot, or is it a special order, also the wire mesh, where would you get that?
thanks, if you could just send a link to where to get it would be great

just google pex for slab heating....
The wire mesh you can get at a good lumber yard or concrete supply house.
Don't forget insulation too

corzy 10-28-2012 10:46 PM

ok thanks, found a "pex supply" website, just under $300 for 1000' should do a 2 car garage and our small 400sq foot addition...not too bad.
any reason you couldn't use zip ties to hold it to the mesh?
and is 1/2" big enough? or too big?

GBrackins 10-29-2012 12:22 AM

check with your lumber yard. they make a rigid insulation that has knobs in it for wrapping and securing you pex tubing to. it is specifically made for use with pex tubing. I don't have a link for it. the one I've seen used was 2" thick with a green material applied to the knobs and insulation board. makes running the pex a lot faster.

check out and see if you have a plumbing supply company (not one for regular joes but the pros). in my area they typically perform radiant heating calculation and can let you know the size tubing and manifolds you'll need.

sorry wish I could remember the manufacturer's name.

Canucker 10-29-2012 03:27 AM

Quote:

Originally Posted by GBrackins (Post 1040052)
check with your lumber yard. they make a rigid insulation that has knobs in it for wrapping and securing you pex tubing to. it is specifically made for use with pex tubing. I don't have a link for it. the one I've seen used was 2" thick with a green material applied to the knobs and insulation board. makes running the pex a lot faster.

check out and see if you have a plumbing supply company (not one for regular joes but the pros). in my area they typically perform radiant heating calculation and can let you know the size tubing and manifolds you'll need.

sorry wish I could remember the manufacturer's name.

http://www.crete-heat.com/
This sounds like what you mean. Expensive stuff but sure cuts down on labour time

GBrackins 10-29-2012 11:51 AM

that's it!

provides your insulation so the heat in your slab does not go into the ground under the slab and makes it easy to lay down your pex.

corzy 10-29-2012 01:35 PM

thanks for the replys guys, its just for my own house, so since im not going to be in a real big hurry, i think ill just lay down the 2" insulation fallowed by the rebar then just zip tie the tubes down on the rebar, save lots of coin that way...
is it possible to make your own manifold? i dont see why you would need a special plastic one when i could just run the 3/4" copper to and from the heater and then branch off the lines into copper manifolds into the zones needed...i think ill go that route since i think ill only need 2 runs of 200' (apparently 300 is max) i dont even see the point of putting in block valves in the supply to each zone since there to be opened when running anyways?


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