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central heating systems can be cleaned

central heating systems can be cleaned

If you want work executed on your fully pumped central heating system you may want to empty the system. To replace the central heating boiler or a radiator is a standard reason. Flushing your system is something that can be done by the none expert but capable diy practician.

In most circumstances Emptying the central heating is carried out to clean the radiators. The first measure you should take is to switch off the gas boiler and central heating pump. To successfully finish this chore you also need to ensure that no more water enters the heating system.

gas heating systems are normally filled up via a expansion tank in the attic. A ball valve mechanism, as used in toilets, is used in the expansion water tank to control the rate of flow of water. This ball valve is a ball connected 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 shut. If water level falls the ball, floating on the surface, also falls venting the valve and allowing more water into the heating system. Water will need to be prevented from entering the gas central heating system if the Emptying process is to complete. Placing a small plank of wood across the water tank preventing the ballvalve from moving will stop further water moving into the heating system.

Once you have completed the above run a hose from an outside empty to the outlet of at the bottom of one of your metal radiators. Water can now enter the outside flush my flowing through the hose out of the heating radiator valve. The hose should be connected to one of the lower metal radiators if you intend to drain the whole gas heating system. You must ensure before you start cleaning or replacing your metal radiator that all of the water has been flushed out.

To make your heating system flush quicker you should vent any bleed valves on your radiators, starting with the radiators on the top level and working your way down. When finished work can now begin on the system.

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