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Mend Heating Thermostatic Valves

Powerflush vs Manual Flush? ?

My radiators are not heating up adequately. I have been recommended to have all the thermostatic and other valves replaced then have a Powerflush. If I replace the valves myself and hose through each rad when off the wall, should this be sufficient?

shiver
July 2010
powerflush better than a manual flush because it shifts more. A lot of the pipework will need chemicals depending on it's size and also needs to be left in a least 7-10 days to give best results. Bgas do a very good powerflush and you have comeback if needed which also includes any re-piping if required - I was very pleased with them!. Add about 3 bottles of inhibitor after you can't have to much.

Dave carter
August 2010
Manually flushing each rad is ok and will help get rid of loose debris and sludge, but you cant beat a full powerflush which cleans all the pipework etc of the complete central heating system, you can get a considerable build up of sludge and debris in the pipework, but this does depend on the overall age of the system and if its been treated with inhibitor etc. With a powerflush you can clean all of the system in both directions as long as you have bi-flow radiator valves. If you decided to go for a powerflush its worth getting numerous quotes as prices do vary (try avoiding British Gas as they are the dearest) Hope this helps?

Marko
July 2010
Yes, pump working OK.

shiver
July 2010
should have the same efect.
Is the pump working to heat the rads?

erj
July 2010
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