The Plastics Pipe Institute has released its online calculator design for hydronic heating and cooling, snow- and ice-melt, plumbing, fire-protection and geothermal applications. The calculator helps with proper sizing of PEX, PE-RT and CPVC pipe and tubing. It performs calculations for pressure and head loss, thermal expansion and contraction, surge pressures, pipe weight and volume, and lengths of expansion arms or loops.
Plastics Pipe Institute. www.plasticpipecalculator.com