Re: Central Heating Flushing?
@Tedc If your boiler is only 8 years old, chances are that you do not need a new one. Naturally, I cannot see or test your boiler / system and by the sounds of it, a system flush would certainly help. Unfortunately, I have retired and miles from Berkshire. Although BG are more expensive than others, if I remember correctly, you get a lifetime guarantee after flushing, as long as you stay in your house.
I would definitely recommend a system filter and I preferred this one :
https://www.google.com/search?sxsrf=...39.vGi_qsTHHLk
Another one for you:
https://heatingforce.co.uk/blog/magn...ystem-filters/
After your system has been flushed, your system should be balanced and goes like this:
1) Fully open all the lockshield valves and flow valves on the radiators.
2) Switch on the central heating.
3) Make a note of the sequence in which each radiator warms up.
4) When all the radiators have warmed up - they don't have to be fully hot, all your noting down is the order in which they get warm, switch off the central heating and wait for the radiators to fully cool down.
5) Leaving all the flow valves open, fully close the lockshield valves and open them again in the order they warm up, i.e. No.1 open the valve by a ¼ turn; No.2 valve by a ½ turn; No.3 valve by a ¾ turn and so on until you reach the end of the circuit.
6) Now you can go back to each radiator and close the flow valves or set your thermostatic valves to suit comfort requirements.
Doing it this way ensures that the rad nearest the boiler and therefore getting the hottest water, doesn't steal it all from the others, each radiator will now get progressively more water passing through it until the last rad is now receiving a balanced amount of hot water.
Thermostatic radiator valves are ALWAYS recommended, as is a room thermostat installed correctly and boiler servicing.
I hope that this helps