Direct and indirect hot water supply system

There are two types of open vented hot water; direct heating and indirect heating. The storage cistern - is the reservoir of cold water used to supply the cylinder . What is the difference between an indirect fired hot water system and a direct fired. DHW generation do not require flues or have a gas supply directly . Direct or Indirect hot water cylinders relates to the way in which the cold. This element is wired to the mains electrical supply via an isolating switch,. This is direct heating of the water by either a) the immersion or b) the boiler.

With an indirect water system, the copper hot water cylinder contains a coil of pipe. Domestic indirect water supply system - how it works to supply the water for a house. Gate valve which can isolate the cold water feed to the hot water tank. Domestic direct water supply system - how it works to supply the water for a house.

Note that in this article, we are dealing with just the hot and cold water . Hi, I need to buy a new Hot water Cylinder. With no CH system pipes, it was considered OK to circulate the water through the back boiler i. In a direct cold water system open the hot taps/faucets to drain the cold . Some pics of your hot water cylinder and associated pipework.