Central Heating Type

The main job of a central heating system is to pump water around a circuit that consists of pipework and metal radiators in the rooms of your home. This system can also go by the name of a ‘wet’ system. All these radiators are fitted with valves that control the flow rate of the water. They accomplish this with the use of a valve that is operated by the heat of the water. The radiators are also balanced, having another valve that is set to a limit on volume of water. Finsbury Plumbers know and maintain wet systems. Other, well thought out systems are available that feature a few smaller circuits that flow out from the heating pump. This way of configuring the circuit will ensure that both the first and last radiator heats with the same efficiency.

System Material and Pipework:

The Two-Pipe Set Up:
This set up is nearly always fitted to the newer more modern heating systems. This works by pumping the hot water into each radiator through their inlet valves. The circuit ends at the last radiator. Another pipe which is called a ‘return-pipe’ that is a return path to the boiler for the cool water, allowing re-heating.

Pipe Material and Sizes:
The whole pipework circuit in a wet central heating system from start to finish is made from 15mm copper tube. There is some pipework that is used as a link that connects the pump, boiler and also any points in the system that split, and this is a 22-28mm copper tube. Any joints that exist in the system are normally capillary solder joints and are the most solid and watertight. Others like the boiler, pump and valve connections can have different joints. Pipes made from plastic have been constructed for use in these central heating systems, but they cannot connect straight to the boiler, instead there is a copper tail. A Finsbury Plumber can work with copper pipes.
“