PEX tubing used in a hydronic (warm-water) radiant heating system. HSB policies define procedures for determining the long-term hydrostatic strength of plastic piping materials such as PEX pipe used for hot and cold potable water systems. Plastic Pipe Institute
PEX tubing used in a hydronic (warm-water) radiant heating system. HSB policies define procedures for determining the long-term hydrostatic strength of plastic piping materials such as PEX pipe used for hot and cold potable water systems.
Plastic Pipe Institute PEX tubing transfers heat to a slab in an efficient manner.

How much insulation is necessary under a typical radiant slab on ground? This author, and radiant heating expert, says that using 2-inch extruded polystyrene over 1 inch makes the simple payback about 3.2 years, which far surpasses the economic returns associated with solar energy systems, wind turbines, and quite a few other more “newsworthy” energy alternatives.

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