Central Heating Question

Can you please describe the powerflushing process?

I had a new Worcester boiler, rads, trvs installed about 8 months ago. About 50% of the pipes were re-used and 50% is new. I am now thinking of getting a powerflush in the spring. So that I get what I pay for, can someone explain the powerflushing process in detail and what products I should get? How long will this take? Thanks in advance.

2 Answers

The flushing process really should have been done prior to the installation of your new boiler. If you read the manufacturers installation instructions, it says in there that the system must be flushed before the boiler is installed. If it is not done it may invalidate your warantee.
To carry out a full system flush, you need a flushing machine and chemical cleaners. Depending on how bad the fouling is, you may need to put a chemical cleaner into the system up to a week before the flush.
Once the machine is connected to the system and chemicals added, radiators are cleaned one by one. When the process is complete an inhibitor is added to the system to help prevent further build up. On average, a flush to a 7-9 rad system takes from half a day to a whole day, depending on system condition.
I hope this helps.

Answered 9th Jan 2012


Member since 3 Nov 2010

The system should have been flushed and inhibitor added at the time of installation to conform with the manufacturers instructions , was it done ? if not why, if it was done you would be wasting your money.

Answered 9th Jan 2012

sovereign plumbing and heating

Member since 23 Nov 2011

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