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Some radiators hot, others warm.

Posted by Daniel Slaney, on
I've just moved into a property that is approx 17 years old. It has an Ideal boiler, with a hot water tank in the spare room and 2 tanks in the loft (I presume one if not both is for CH). Some of the radiators get to a decent temperature, the others are mildly warm at best. There are 3 small radiators, 2 medium and a larger one. I've tried bleeding them, to no avail. One of the small radiators I was unable to bleed. Boiler was serviced in September this year. Do I need a powerflush, radiator balancing or both? Thermostat dial is set to 30 and it's still pretty chilly!
Michael Tucker

Michael Tucker

Hello Dan, Welcome to the site. Well you clearly have been given lots of advice. But I don't think you can get any better then to get 3 tradesmen out to look at it free of charge Best to get an on site survey/quotation done, this is a free service to you and you will get 3 quotes. Simply post your job onto rated people's site. You are not obliged to go with any of the quotes- but every job that's posted is paid for by the relevant tradesmen .if they contact you that means they are interested in your job. If one of them are awarded the job then great news for you both. ratedpeople.com Regards Michael

Samuel Adjei

Hi Dan. I've come across several of this type..... Here is the solution. You need an operative to attend to confirm your boiler's flow/return temps are ok at max power. If that's fine then the next step is to establish why the heat boiler generates does not travel to radiators......You might need to partially drain down.....dose with system cleaners and run for a couple of days......drain down....dose with inhibitors & balance. You will win the battle.
Fenton McLaughlin

Fenton McLaughlin

The Engineer that Service your boiler would have been in the best position to advised you on the problem and what action you needed to take. You will need a qualified person to take a look and advised.

Tony Underwood

Generally a power flush is not the answer although many will do this just to create a job. I would recommend you get us or another engineer to check the system for you. This is not unusual.

Bernard Menehan

Try balancing first .close down rads that get hot, then open up quarter turn if others get hot.bernie .menehan gas services.
Sam Sandhu

Sam Sandhu

Hi Dan I would initially get a suitably qualified heating engineer to check if the system is balanced well. I would then bleed out any air from the system. If the problem doesn't resolve then you may have some form of blockage, build up of sludge within the radiators and pipe work. This may be the case more so if the pipe work to the radiators is microbore (8 or 10mm). A power flush for your system may cost you around £350 including the chemicals. Installing a magnetic filter may also help but won't be as thorough as a power flush. This option will probably cost in the region of £250 (supply & fit). Hope this helps. Sam (eps)

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