Cleaning gas heating systems before further work







Cleaning gas heating systems before further work

If you need work carried through on your fully pumped gas heating system you may want to clear the system. To replace the heating boiler or a heating radiator is a standard reason. This is often executed by the engineer during repair or extension work although some experienced homeowners have been known to clean their own gas central heating systems.

Cleansing the radiators is the most standard driver of this action. For this initiative the first activity will be to switch off the heating boiler and central heating pump. It is also important that you do not let any additional water into the gas heating system while you drain it.

The gas central heating system has a expansion tank in the attic which will ensure that any water shortfall is filled up. The flow of water in the expansion cystern is controlled by use of a common ball-valve. This ball-valve is a ball attached to an arm that, when raised closes the valve, which means when the cylinder is full no more water can enter as the valve is closed. As the water level falls, say through Flushing, the ball drops in the cystern venting the valve and allowing more water to enter the gas heating system. Water will need to be prevented from entering the central heating system if the Flushing process is to complete. One of the best ways to contain this is by placing a piece of wood across the water tank and tying the value arm to it, which will close this valve.

When all these safeguards have been carried out, you should attach a hose to the part of your metal radiator known as the outlet and run the end of the hosepipe outdoors. Once you open the outlet valve the water will be able to rate of flow through the hosepipe to the outside clean. To clean your whole central heating system you need to attach this hosepipe to one of the ground floor heating radiators, the lowest ones in the house. Before you begin any other work on this central heating system you must now check that all the water has emptied out and no other the water is entering into the radiators.

The process can be hurried up by venting the bleed valves in the top floor radiators. You can commence work on the gas heating system once all the water has emptied out.

Posted in Boiler


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