| 摘要 |
<p>The present invention relates to a device concerning a water heater (10), comprising a conical set (3) of tubes having a inner, longer channel or flow path (6) and a shorter, outer channel or flow path (7), for mounting within a mounting piece 82) of the water heater (10), said set (3) of tubes in a mounted state projecting into the water heater (10) through said mounting piece (2) for supplying cold water (CW) and discharging hot water (HW) to and from said water heater (10), respectively, said mounting piece (2) being provided with a female threaded portion (8) for releasable attachment of the set (3) of tubes to the water heater (10).</p> |
