| 摘要 |
PURPOSE: A hot water pipe assembly for heating is provided to maintain a gap between an electric heating wire inside a hot water pipe and the bent portion of the pipe in order to prevent the wire from being in closely contact with the bent portion. CONSTITUTION: A hot water pipe assembly(1) for heating includes an electric heating wire(20) and a bent portion(11). A coil wire(30) is spirally wound on the outer circumferential surface of the electric heating wire so that a gap is formed between the electric heating wire and the bent portion. Hot water circulates through the gap, thereby increasing heat transfer efficiency from the electric heating wire to the hot water. |
