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  • FIRST POST
    • andrew-b
    • By andrew-b 24th Oct 08, 1:17 PM
    • 2,497Posts
    • 3,573Thanks
    andrew-b
    Cleaning out central heating system
    • #1
    • 24th Oct 08, 1:17 PM
    Cleaning out central heating system 24th Oct 08 at 1:17 PM
    ...................
    Last edited by andrew-b; 09-11-2011 at 11:34 PM.
Page 1
    • latecomer
    • By latecomer 24th Oct 08, 1:30 PM
    • 4,532 Posts
    • 2,588 Thanks
    latecomer
    • #2
    • 24th Oct 08, 1:30 PM
    • #2
    • 24th Oct 08, 1:30 PM
    We did something similar to what you are suggesting with removing the radiators and flashing them with a hose. It took a long time to do and of course you have all the effort of taking them all off and then reconnecting and ensuring there are no leaks.

    I was given a rough estimate of about £400 for a powerflush but that wasn't guaranteed until they'd had a look. For us it was worth the effort to save the money but we will be replacing out boiler at some point in the next year and getting all new rads and pipework.
  • EliteHeat
    • #3
    • 24th Oct 08, 2:40 PM
    • #3
    • 24th Oct 08, 2:40 PM
    How can you manage to get a Magnaclean for £10?

    Taking the radiators out and flushing them with a garden hose will undoubtedly help. Whilst you are doing this, whack them with a rubber mallet as this should loosen up a bit more crud.

    When re-instating, use Sentinel X800 – this is much faster acting than most products and will effectively clean your system in a day.

    Installing the Magnaclean is an excellent idea. This together with a proprietary inhibitor will ensure that you system gets progressively cleaner. The one weak point of a Magnaclean is the isolating valves, they are both awkward to use and not too reliable. After a few failures I have started to fit 22mm full bore ¼ turn lever valves before and after the Magnaclean – this is a much better arrangement and only adds a tenner or so to the job.

    I have no idea how much you will have to pay someone to fit it. It’s a pretty easy job so should not take more than an hour or so. Make sure you get an actual heating engineer – someone that knows the difference between the primary flow and return and you should be fine.
    • Canucklehead
    • By Canucklehead 24th Oct 08, 7:07 PM
    • 6,264 Posts
    • 3,371 Thanks
    Canucklehead
    • #4
    • 24th Oct 08, 7:07 PM
    • #4
    • 24th Oct 08, 7:07 PM
    Hi, Andy: Sorry to hear about your trials. I'm surprised your installer, Swale Heating, didn't powerflush the CH system (the OH always includes a powerflush and a Boiler Buddy,which uses standard 22mm gate-type valves, in all quotes). For a powerflush using Sentinel or Fernox products and fitting a customer supplied Magnaclean/Boiler Buddy down here you're looking at £350 and a day

    Note to Elite Heat..... Have you tried the Boiler Buddy?

    HTH

    Canucklehead
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
  • EliteHeat
    • #5
    • 24th Oct 08, 7:49 PM
    • #5
    • 24th Oct 08, 7:49 PM
    Note to Elite Heat..... Have you tried the Boiler Buddy?
    Originally posted by Canucklehead
    No, simply because of their need for pump valves - the bane of my life!

    Fitted loads of Magnacleans though and they never fail to impress - with the exception of the crappy isolators though.
  • EliteHeat
    • #6
    • 25th Oct 08, 6:44 AM
    • #6
    • 25th Oct 08, 6:44 AM
    What you're planning on doing will be fine. Far more than most installers, let alone householders.

    Incidentally, BG seem to now be cooling off on powerflushes in favour of fitting Magnacleans.
    • Canucklehead
    • By Canucklehead 25th Oct 08, 9:09 AM
    • 6,264 Posts
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    Canucklehead
    • #7
    • 25th Oct 08, 9:09 AM
    • #7
    • 25th Oct 08, 9:09 AM
    To be fair to them I think powerflush was discussed originally but because i'd drained down a rad and the water appeared pretty much clear I thought it was going to be unnecessary - in hindsight this was not one of my best decisions! Out of about 5 quotes at the time I think British Gas were the only one's who tried a hard sell on powerflushing to me.

    Looking at the worksheet what was actually carried out was a cold flush initially, a hot flush with cleaner in and another flush before refilling with inhibitor added. As i recall it the water ran fairly clear and there wasn't really any major sign of sludge. In hindsght i'd probably have insisted on the powerflush now but nevermind!

    I was looking at the boiler buddy the other day on fernox website. Other than their isolator valves and the window allowing you to see into the boiler buddy is there that much difference between magnaclean and boiler buddy? From what i've seen the boiler buddy is marginally more expensive though not enough to justify a decision on price alone.

    The going rate for powerflushes is of the order of what i suspected. Not sure i can bend the house budget that far without something having to give elsewhere - will look into it though. Everything at the moment seems to be a trade off between what we can afford and the ideal solution.

    Andy
    Originally posted by andrew-b
    Good morning: If you're going to spend the day taking off rads and rinsing by hand you might as well bite the bullet and rent a powerflush from Brandon's at Westwood.The OH doesn't 'hardsell' powerflushes just follows 'Best Practice' in all aspects of central heating installation: saves lots of hassle for the client and himself as you have discovered.

    HTH

    Canucklehead
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
    • Canucklehead
    • By Canucklehead 25th Oct 08, 9:20 AM
    • 6,264 Posts
    • 3,371 Thanks
    Canucklehead
    • #8
    • 25th Oct 08, 9:20 AM
    • #8
    • 25th Oct 08, 9:20 AM
    What you're planning on doing will be fine. Far more than most installers, let alone householders.

    Incidentally, BG seem to now be cooling off on powerflushes in favour of fitting Magnacleans.
    Originally posted by EliteHeat
    Good morning: Too many substandard installations out there but conversely good business for anyone who services/repairs. BG's gone with the cheaper option: makes for faster installation for their multitudes of subcontractors on carp money.... I don't believe many consumers know about BG's extensive use of subbies or the fact that many ' installers' know nothing about faultfinding/repair (lots of chat about this on diyNOT in the Combustion Chamber).

    Canucklehead
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
  • EliteHeat
    • #9
    • 25th Oct 08, 4:32 PM
    • #9
    • 25th Oct 08, 4:32 PM
    lots of chat about this on diyNOT in the Combustion Chamber
    Originally posted by Canucklehead
    I really ought to get around to submitting my Corgi details, but that lot can be a bit hardcore at the best of times - it does your head in sometimes
    • Canucklehead
    • By Canucklehead 25th Oct 08, 4:46 PM
    • 6,264 Posts
    • 3,371 Thanks
    Canucklehead
    that lot can be a bit hardcore at the best of times - it does your head in sometimes
    Originally posted by EliteHeat
    Absolutely

    Canucklehead
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
  • PasPer2
    My Father has just had his C/H replaced with a new combi-boiler and they have fitted the item below. Is this comparable to the boiler buddy or similar devices ?


    Dirt Separators

    The Spirovent Dirt separator is designed to separate and collect the dirt particles circulating in the system's water. Dirt is released through a bottom drain valve.

    Part No.DescriptionUnit Price Qty17196 22 mm compression, horizontal £75.60
  • Razor
    I find that if the cold feed to the system or the vent are blocked it will be at the point they join the system rather than in the loftspace, I usually cap both the feed and vent in the airing cupboard and clean the tank out by hand. This is on a BG powerflush where the installer gets about 3 and a half hours for up to 17 rads They also do a powercleanse where you get 48 minutes to get the kit out the van, flush whole system, fit magnaclean and pack away .

    www.kamco.co.uk has a good guide to powerflushing.

    Make sure there is a balancing valve fitted on the return from the hot cylinder or you will spend all day only flushing the coil.

    Do you have microbore pipework? If so double the cleaning chemical and make sure you flush both ways or you could make things worse.

    There is a new magnaclean out nowish that combines the best features of the magnaclean and boiler buddy haven't seen one yet but supposed to be good.

    Good luck
  • EliteHeat
    You would be better off taking some quality photos of your airing cupboard. Especially where the pump and motorised valve is located.
    • Canucklehead
    • By Canucklehead 8th Nov 08, 8:56 PM
    • 6,264 Posts
    • 3,371 Thanks
    Canucklehead
    Good evening: Andy...I suspect you could get a better quote from a local, independent RGI ....that price is at least £100 too much.

    HTH

    Canucklehead
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
  • heating-eng
    Get a spirotechs magnabooster instead
    X British Gas engineer and X BG sales adviser.
    Please don,t let this put you off.
    • Canucklehead
    • By Canucklehead 4th Jun 11, 6:06 PM
    • 6,264 Posts
    • 3,371 Thanks
    Canucklehead
    Get a spirotechs magnabooster instead
    Originally posted by heating-eng
    Just curious...why have you revived a thread last posted on in Autumn 2008?

    Canucklehead
    Ask to see CIPHE (Chartered Institute of Plumbing & Heating Engineering)
  • heating-eng
    Just curious...why have you revived a thread last posted on in Autumn 2008?

    Canucklehead
    Originally posted by Canucklehead
    I didn't realise
    X British Gas engineer and X BG sales adviser.
    Please don,t let this put you off.
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