what type of pex for floor heat
PEX Radiant Concrete Floors (Slab on Grade) For concrete floors (slab on grade), the Radiant PEX tubing is attached to the reinforcing mesh with cable ties before the slab is poured. This type of PEX Radiant Floor Heat System has a large mass. With this type of radiant underfloor heating, the space can only changed by the radiant floor about 1/2 a degree per hour. Typically the water temperature used in pex water line for this type of radiant floor is between 90Â° and 115Â° Fahrenheit.