PIPING FOR HOT-WATER HEATING

摘要

PROBLEM TO BE SOLVED: To provide piping for hot-water heating which can arrange signal wires on in optional portion along the longitudinal direction of the installed piping for hot-water heating and can prevent the breakage of the arranged signal wires even if a going pipe or a return pipe is expanded or contracted by the heat of hot water which is transferred.SOLUTION: Piping 2 for hot-water heating includes a water passing pipe formed by bundling a going pipe 6 and a return pipe 7 as a pair and arranged in a sheath pipe 9. A recessed part 15 which accommodates signal wires 14 for controlling a bathroom heating/drying system 1 is formed on the external surface of the sheath pipe 9.