Cleaning central heating systems before additional action

Taking the water out of a fully pumped gas central heating system makes many upkeep tasks easier. To exchange radiator valves or add an additional radiator as an example. Usually this function will be executed by your engineer but in some circumstances it can be performed by the experienced maintenance handyman.

Whilst there can be a multitude of reasons the most common is to flush the heating radiators. Switching off the boiler and heating pump should be the first measures you take. To successfully finish this undertaking you also need to see to it that no more water enters the heating system.

Your Central Heating header cylinder is where the water is flowed into the system. This has a ball valve that is the same as the one seen in your toilet water tank. Rising water levels in the tank mean that the valve is closed as the ball floats higher on the water surface. As the water level falls, say through Emptying, the ball drops in the tank venting the valve and allowing more water to enter the central heating system. This is what needs to be stopped when Cleaning your heating radiator. To prevent any more water entering the valve needs to be off.

Once you have accomplished the above run a hose from an outdoors empty to the outlet of at the bottom of one of your radiators. Water can now enter the external empty my flowing through the hosepipe out of the radiator valve. To empty your whole gas central heating system you need to attach this hose to one of the ground floor radiators, the lowest ones in the house. Before you start any other work on this gas central heating system you must now check that all the water has emptied out and no other the water is entering into the heating radiators.

To make your heating system clean faster you should open any air valves on your heating radiators, starting with the heating radiators on the top story and working your way down. When finished work can now begin on the system.