There's 9cm of pipe between the radiator's and the floor upstairs so that's 108cm of pipe and no kite mark, odds that its non barriered stuff?
Power Flush, been told it can't be done!
- Thread starter Jimmy321
- Start date
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I am surprised that no one else has suggested this to you!
You need to go and cold call on at least 12 neighbours keeping a record of the addresses and what they say.
Ask them how long they have been there for and what has been done with their heating systems.
With at least 12 homes, you are likely to get one or two who will be quite knowledgeable about their system and what they have had to do will be good guidance for you.
My advice would be to repipe the system and the cost might be about £300-£500 although others, particularly the Scottish, might have views on this.
Of course its quite possible there is not much wrong and the three cold rads could be easily fixed.
If there is dirt in the system then a magnetic filter in the return to the boiler would be a very good idea.
Tony
You need to go and cold call on at least 12 neighbours keeping a record of the addresses and what they say.
Ask them how long they have been there for and what has been done with their heating systems.
With at least 12 homes, you are likely to get one or two who will be quite knowledgeable about their system and what they have had to do will be good guidance for you.
My advice would be to repipe the system and the cost might be about £300-£500 although others, particularly the Scottish, might have views on this.
Of course its quite possible there is not much wrong and the three cold rads could be easily fixed.
If there is dirt in the system then a magnetic filter in the return to the boiler would be a very good idea.
Tony
N
namsag
Repipe a system for 300 quid 
dont make me laugh that might just buy you the materials .Showing your lack of knowledge yet again Agile
dont make me laugh that might just buy you the materials .Showing your lack of knowledge yet again AgileSponsored Links
Really I would have thought that was the price for a power flush.
May be HEP2O polybutylene (PB) pipe;
http://hep2o.wavin.com/Hep2o/Standards_and_Approvals.html
The original polybutylene HEP2O pipe was grey. Check with Hepworths about the markings on barrier and non-barrier pipe.
It sounds like the company have done a job on similar systems in the area and had their fingers severely burned. I'd go back and ask them what the problem is. Possibly non barrier tube, a defect in the systems allowing air in, weak joints (no inserts? that fail under pressure, when a power flushing machine is connected), etc..
OT
Have you tried turning off all the rads that work and leaving the ones which don't to see what happens?
Also rather than the expense of a pf why don't you like agile suggests fit a filter on the return but also drain a rad unless you fit a magnaclean and poor some sentinel x800 in and let it run and see if you get anyjoy. Also there shouldn't be a problem flushing 10mm pipe system/ rads individually.
Also rather than the expense of a pf why don't you like agile suggests fit a filter on the return but also drain a rad unless you fit a magnaclean and poor some sentinel x800 in and let it run and see if you get anyjoy. Also there shouldn't be a problem flushing 10mm pipe system/ rads individually.
Ninja Bump!
Update on this, my central heating started to break down again when I switched it on for the winter so I bit the bullet and got it completely replaced a month ago.
They removed the old pipes, rads & boiler. Fitted all new equipment and copper piping throughout, Rads' TVR's, controls, drain at the boiler, drain at every downstairs rad, Vaillant Ecotec Plus 831 boiler.
Guaranteed all the pipework for 5 years & the boiler for 5 years via Vaillant as long as I get it serviced every year for £50/year.
Took 2 days and done a good job (as far as I can see) and all for under £4k.
God I hope I don't have bump this thread again!
Update on this, my central heating started to break down again when I switched it on for the winter so I bit the bullet and got it completely replaced a month ago.
They removed the old pipes, rads & boiler. Fitted all new equipment and copper piping throughout, Rads' TVR's, controls, drain at the boiler, drain at every downstairs rad, Vaillant Ecotec Plus 831 boiler.
Guaranteed all the pipework for 5 years & the boiler for 5 years via Vaillant as long as I get it serviced every year for £50/year.
Took 2 days and done a good job (as far as I can see) and all for under £4k.
God I hope I don't have bump this thread again!
Jimmy the guy you spoke to possibly knows what he is talking about, Plastic pipe can block up- I had a section just over 1000mm of 10mm pipe on a system at Pollokshaws Road that was blocked. Used a hand pump where the pressure was peaking very high but the muck did not shift. 22mm primaries from boiler to first branch were similarly blocked. Ended up repipeing the system.
Plastic pipe is plumbers dream but heating engineer's nightmare.
Chemicals will only work if there is some circulation
While above is one scenario, I am not suggesting your system is blocked up- could be other issues. A site visit would be needed to establish the root cause but the chap you called might be familiar with the system in that area. Though the idea of individual radiator removal to 'flush out' in the garden I take with a pinch of salt if the pipes are the culprit. You will have spent the money then to be told you need a repipe.
Plastic pipe is plumbers dream but heating engineer's nightmare.
Chemicals will only work if there is some circulation
While above is one scenario, I am not suggesting your system is blocked up- could be other issues. A site visit would be needed to establish the root cause but the chap you called might be familiar with the system in that area. Though the idea of individual radiator removal to 'flush out' in the garden I take with a pinch of salt if the pipes are the culprit. You will have spent the money then to be told you need a repipe.
Yes I suppose it may, but not that extreme when you have spent the last 12 or so winters without CH/HW from a few days to 4 weeks every year.
Possibly not but it was out of warranty and was breaking down on a regular basis, I spent the last 4 weeks before the new fit without CH/HW, the expansion vessel had gone, PRV gone, was giving a false temp reading and was dropping pressure, intermittent F5 error. TBH I was sick of the sight of it.
I did not see the point in keeping the old rad's, I had been topping up the system every 2 months in the winter since the Viessmann install without rust inhibitor as I did not know any better and in any case most of the rads looked aged so to speak and did not want to take any potential problems forward to my new system.
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