| 摘要 |
A manifold for supplying hot water to a heater such as a towel holder has a tubular outer body for mounting in a generally vertical disposition. The upper end of the outer body is closed off and an inner tube is mounted within the outer body, to communicate therewith at or adjacent the upper end. First and second connectors for first and second external pipes leading to the heater communicate with the interior of the outer body. An electrically-powered immersion heater is disposed within the inner tube and when energised raises the temperature of water in the inner tube thereby promoting convection circulation of hot water through a heater connected to the manifold by the first and second external pipes.
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