HOT WATER INSTALLATIONS

摘要

A hot water installation is described comprising a storage vessel (1) for holding a thermally stratified store of hot water; and a water heating circuit externally of the storage vessel (1). The vessel (1) has, at the bottom (7), a connection for a cold feed (10) for water entering the storage vessel (1) and a feed (7) to the external heating circuit, and, at the top, a connection for feeding hot water from the external heating circuit into the vessel (1) and for delivering hot water as required on demand. The hot water installation is particularly useful as a domestic hot water installation. The installation allows existing hot water cylinders to be converted to be suitable for condensing boilers to provide an improved conversion of fuel to energy and heat-up rate for domestic hot water.