I recently installed my first radiant heat in my house for my bathroom that I remodeled. I ran the pex under the floor and used regular clips that lowes sell to secure it. Anyway this method is LOUD all I hear is tick tick tick from the floors, After I read that PEX expands 1″ for every 10″ or something when heated. I have been looking at ways to re mount the PEX ( Standard Red 3/4″ Pex you buy at lowes, One run of Pex between each joist as my house ranges from 10″-20″ on center)
Anyway I could never find any heat transfur plates for 3/4″ so the clips are how I went but granted this keeps the PEX right to the floor and that makes the noise for me. I noticed they have the slide brackets ( http://www.houseneeds.com/shop/Heatingproducts/radiantheating/safelink/safelink34inchbuy.asp ) That you just strap the PEX with wire ties and keep the PEX about 2″ away from the floor. WELL Can’t I just use 2×4’s cut, put them every 2-3′ and wire tie the pex to the 2×4’s? Do I need to wire tie them? I am just looking for the best way to do this while keeping the noise AWAY.
What do you guys suggest? It is under a tile bathroom floor on a house that is about 80 years old using a on demand condensing boiler, I will spend the money to do it right but obviously I would like to save as much money as possible if I can get away using stuff I already have VS buying stuff that will do the same job.
Thanks!
Kyle
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