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Keston Celsius 25 Modulating Domestic Condensing Boiler

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34 Reviews

With an ultra-high efficiency of up to 97% the boiler can save some 30% on the fuel bill. Being fully modulating the one model is suitable for practically any size home

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    34 Reviews
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      17.03.2013 09:14

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      Buyer beware

      Now on our second Keston boiler in just seven years the first one being written off after 5 years due to numerous failures.
      In 2011 we had a Keston Quedos 28h installed, in the mistaken belief that a new model would provide a better service. Surely enough after 1 year it developed a leak ,then as though it was programmed to self destruct just as the warranty ran out, ( February 2013) the PCB failed and the external flue hoses had also perished.
      Keston were only too pleased to replace the parts at a cost of £240. But we were left in the cold for 2 weeks as one engineer turned up and said he would have to order the parts,which took another week to be delivered in the worst cold snap we have had for years.
      The odd thing is that the technical staff at Keston admitted that there had been faults with the PCB on this model and it had now been replaced with an updated PCB.
      The boiler is currently working fine again for now, but i do not hold out much hope.
      There must be something radically wrong when N Power will not do boiler cover for Keston boilers.

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      18.12.2012 01:23

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      OK - I know this is going against the thread of just about all comments on here but I seriously have had a reliable (so far) Keston boiler for nearly 5 years! It did once have a problem with a build-up of scale but that was sorted easily.I bought it because of the muPVC flue and the fact that it enabled me to have a long run with the boiler on an internal wall. Immediately I installed it, I started reading all the poor reviews and horror stories. I lived in near fear for a couple of years but so far so good!Maybe I've been lucky - but anyway I've decided, because of it's age (for a condensing combi) that I'm now going to take out a British Gas contract.

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      29.03.2012 13:33

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      Years ago potterton reputaion got destroyed by a boiler called a suprima.The thing is the only problem was the pcb needed to be changed.Keston boils have far more dangerous problems;Burner liner failing leading dangerously hot outer case basically the boiler is finished new heat exchanger £ 800Flue pipe meltingExpensive fan failures leaking heat exchanger gaskets aav leaking on to switcheskeston aftersales rubbishI am currently scrapping a 4 yr old c55 with heat ex failure and have ripped out 3 more in the last 2 yearsavoid keston at all cost and don't bother to repair have a vailiant installed

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      13.02.2012 14:02

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      We had a Keston 130 fitted 10 years ago. It was expensive, but that's what the installer recommended, and we thought we were buying quality (wrong!). It has been nothing but trouble. It is now on its third gas fan - costing £450 per time! It looks well made inside, but in practice it has been really really unreliable. Had it fixed again a few months back and recently it has started making noises that it shouldn't, which to me indicates it is going to fail again. Rather than pouring money down the drain, I'm now minded to replace it. From all I've read on the internet, and advice from boiler guys, Worcester Bosch or Valient are the way to go.

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      23.09.2011 17:07
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      Avoid Keston's products like the plague.

      We purchased, after professional advice, a rig of 3x C55 boilers. The advice was that they would be the most efficient boilers and save us the money we were looking to save both in the short and long term.

      BUT... less than 8 years of service life, the boilers have had the following;
      Boiler 1: 4x new fan mechanisms, 1 new heat exchanger (and now needs another), new flu, 15x igniters, re-wiring,
      Boiler 2: 3x new fan mechanisms, 1 new heat exchanger (and needs a new one now), new flu, 12 x igniters, gas valve
      Boiler 3: 3x new fan mechanisms, 1 new heat exchanger (see note below), new flu, 12 x igniters
      - Boiler 3 has also been completely replaced. The new replacement (run for 26months) needs a new heat exchanger and has already had 3 fan mechanisms.

      The C55's are not cheap boilers by any stretch of the imagination costing in excess of £2500.00 plus VAT per boiler. The servicing is carried out by Keston authorised service agents only who themselves state that they are kept busy by the amount of failures on Keston's boilers.

      Over a 10 year period we would anticipate based on what we have spent over the past 8 years that a single Keston Boiler will cost you inexcess of £9,000 (conservative estimate without callout charges or downtime).

      Everywhere I now look there is nothing but negative reviews for Kestons products, I deeply regret having these boilers fitted in the first place and the company we chose now refuses to deal with Keston as they have had so many faults to rectify.

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      26.07.2011 11:04
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      Avoid

      October 2004 and needing a new boiler and hot water cylinder to cope with my extended bungalow, I opted for the Keston Celsuis 25 Duet; a pre-assembled unit containing both a 25.2Kw boiler and 200 litre stainless steel hot water cylinder in a single rig unit making for a very simply and quick installation.

      The technical specifications made the unit sound ideal - highly efficient, a high quality, corrosion resistant, stainless steel heat exchanger, rapid hot water recovery, small diameter plastic flue terminating into specially developed ridge tiles, compact and easy to use.

      Unfortunately, reality was a totally different story - a total disaster

      * October 2004 - Keston Duet system fitted
      * March 2006 - Ignition PCB replaced
      * June 2006 - Boiler Control PCB replaced along with Flow Overheat Thermostat
      * November 2006 - Split Flue Hose replaced
      * September 2007 - Ignitor gasket replaced
      * April 2008 - Original hot water cylinder leaks and spills water all over flooring - replaced
      * June 2008 - Ignition PCB replaced
      * August 2008 - Burner gasket replaced
      * March 2010 - Second hot water cylinder leaks and spills water all over flooring - replaced
      * May 2010 - Split flue Hose and ignitor failure
      * September 2010 - Cabinet overheat due to thermal fuse failure.
      * September 2010 - Burner gaskets required replacement
      * November 2010 - DBI pcb failure
      * November 2010 - Heat Exchanger failure - Keston engineer condemns boiler as unsafe and could cause a major fire. Boiler replaced (with alternative make)
      * July 2011 - Third hot water cylinder leaks and spills water all over flooring - replaced (by alternative make)


      Keston - one has to question the quality of their products. Is there any quality control?
      A failed and condemned boiler along with three failed hot water cylinders in a little over six years would suggest that Keston clearly have problems, perhaps this is why they have recently been taken over by Ideal Stelrad, but their track record as far as I am concerned is little short of pathetic, and I have to question the quality of the materials and workmanship being used. Perhaps the Polish welders are not up to it, or they are using inferior stainless steel.

      Keston seemed to have little interest in quality control. As a manufacturing company I would have assumed they have some interest in why a product was continually failing, unless of course they are getting so many or already knew the reason; but when asked if they wished to have the old failed cylinders back for inspection the answer was 'no, take them to the local tip'- possibly an appropriate place for their products!

      However, I am not sure things are any better at Ideal Stelrad. I received the following from their Deputy Customer Service Manager:
      After reviewing the history and all correspondence, I was disappointed to read that you have experienced problems over the past 6 years with the Keston cylinders and that you no longer have confidence in their reliability. Although I can not comment on why Keston have never previously arranged for leaking cylinders to be returned, I can advise that our Quality department do investigate any reported problems that are brought to our attention, in order to resolve and improve on the product performance.

      Oh no you don't! Having asked if they wished to collect the most recently failed cylinder for examination - guess what no response!!


      Keston's customer service - like a company in disarray.
      To be fair, their technical staff were always helpful and tried to diagnose the problems. Pity this could not extend to their customer support staff who came across as being surly and bolshie, and who felt that taking six days to inspect a leaking cylinder was quite acceptable. They seemed more interested in collecting your credit card details rather than offering any form of service.

      Talking of money Keston are not cheap, especially their spare parts - £115 for a pcb and £800 a heat exchanger. Having sent three engineers (at my expense) to fit the second replacement cylinder and, who despite me being present were blatantly talking about the fiddles they were perpetrating, is perhaps the reason for these high prices.

      In addition to the original cost of the unit and fitting, I have spent over £600 in refitting leaking cylinders and £440 in damage repairs to my property caused by leaking water from Keston cylinders. I have been advised that it would be reasonable to expect a central heating boiler and cylinder to last at least 10 years.

      As to my suggestion that Keston might wish to reimburse me for the repairs to my property, following the most recent cylinder failure, along with the cost of supply and fitting of a new cylinder from an alternative manufacturer? Well, lots of platitudes and the expected flat refusal; since surprise, surprise, I was not prepared to accept their offer of a further replacement cylinder. Never mind the Small Claims Court might see things slightly differently, but as for customer service from Keston - in my experience forget it!

      Conclusion
      My decision to buy Keston was clearly not one of my better ones. I have successfully been running my own businesses for over 30 years and I wouldn't dream of treating a customer in the offhand and disgraceful manner that Keston do. My experience of Keston has left me with the impression of a company who don't care about their products or their customers - my advice is to avoid them like the plague and I for one am glad to be rid of all Keston products in my house.

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      06.06.2011 15:50

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      don't ever buy one

      I had a Keston C55 boiler installed in 2003. Since then it has required 3 new fan assemblies and a new heat exchanger. This is like a new car requiring 3 new engines and a new gearbox. Now the insulation on the new heat exchanger (put in 2008) is degrading so no doubt I shall need a new one soon enough. Keston's service department are not much good either. Their engineers don't seem to know what they're doing - had to help the last one mop up a flood he caused - and they always leave a mess. Also, if you don't have a maintenance contract they refuse book a visit outside the summer months - obviously too busy fixing dud boilers. Keston have been no help at all over this, except they did have the decency not to pursue me when I refused to pay their bill for the 2nd fan assembly. Since then I have had the boiler serviced and repaired by an independent engineer whom I have been lucky enough to find. NEVER EVER buy a Keston boiler.

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      23.03.2011 18:54

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      do not buy! if you do own one replace it while you can!

      i am a gas installer in the south west looking after numerous properties with these poor excuses for boilers!
      if you are a tenant in a rented property you are the lucky one ( only because you will not have to foot the bill for all the replacement parts that will be required on your appliance!) if you are a homeowner i am sorry but you really need to consider ripping the noisy fault ridden piece of rubbish out!
      i look afer around 40 rental properties with various keston boilers in and can honestly say i have been called out to all of them!
      the main "common" faults on the c25 range from fans,pumps,circuit board,dangerous split exhaust tubes sensors and thermostats and the most expensive split heat exchangers! all of these are very common and unforunately very expensive!
      if you have a c25 with a split heat exchanger you will be looking at a cost of aroung £600-£800 PLUS labour!
      dangerous split exhaust tubes are fairly cheap to replace however if not detected early could be fatal! sorry if this is bad news but on the bright side they are not made anymore! i have never installed a keston ( breakdowns only) and would not for all the hassle they are worth.
      if you are looking for a reliable central heating boiler i recommend a worcester or vaillant
      hope this helps
      m

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      01.03.2011 18:51

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      I wrote a review July 7th 2009 about the poor service and appalling customer service (??) from this company.Since then, we have not had any problems until the boiler stopped working Saturday morning ( Febrary 26th).We have had the fuses checked, the pump replaced and still no joy. There is talk about replacing the motherboard ( costing £134 + engineer call out).We have spent about £1000 over 5-6 years on this lousy piece of tin and are now looking to replace this rubbish with a Bosch Worcester or Vaillant boiler.Do not buy this boiler, it should not be on the market as it does not meet trading standards ie " not fit for purpose".

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      23.02.2011 11:56

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      I have a Keston C25 boiler around 4 years old. The boiler has been a pain for the last 2 years. It takes a a long time to get started. The service engineer says that it is the issue with the circuit board. I have been spending quite a lot on this boiler and it seems to be a never ending thing. I am seriously thinking to get it replaced. Its better to have that piece of mind rather than sending money every couple of months. Never go for Keston. It is throwing moey down the drain.

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      27.02.2010 00:18

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      Don't buy a Keston

      I am a gas heating engineer and have fitted 3 x C45 Keston boilers, 2 x C55 Keston boilers and many more C25's. I do not fit Keston anymore. A very high percentage breakdown in the first few years, usually with printed circuit board failure, fan failure and in some instances very dangerous combustion tube exhaust splitting. Also split heat exchangers on the C25s are very common and they are excessively noisy. After sales service is not good either. Like I said, I don't fit Keston anymore and would not recommend anyone else to fit or buy one.

      The best product on the market at the moment is Worcester Bosch. If installed by worcester accredited engineer there is a free 5 yr warrantee and the after sales service for the customer is second to none, they also offer free support and training for the installer. Result: happy customer, happy engineer.

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      24.02.2010 13:35

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      My Keston C25 was installed 6 years ago and has been a complete pain since the word 'go'. During it's first two years numerous repairs were made under extended warranty, the last engineer reporting there was too much wrong with it and it was written off by the Insurance Co. I contacted Keston suggesting they replace with a new boiler, but instead, they 'looked after' it for two years without charge. During that time, numerous problems occurred, the main one being leakages. Year 4 arrived and Keston would no longer even send an engineer. Finding an engineer who would touch a Keston was almost impossible, but was finally successful and had it serviced April 2009. Halleluia, no problems for the last year, but now, February 2010, problems again. Damage so bad, a new boiler is being installed. Total cost for 6 years of boiler service now reached nearly £5000.

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      31.01.2010 09:08

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      Wish we never set eyes on a Keston boiler

      Here I am sat in cold house waiting for British gas to come out on their annual breakdown. I thought I would start looking at Boilers when I came across this site. We have had a part time boiler for 5-6 years now we try being nice to it and the nice man from British gas tries his best to be nice to it but the time is coming to start thinking of redundancy. We will give of course fair notice say one weeks notice to every years full time employment which means I could probably put it in the skip now.

      We are thinking of changing our contract for 24/7 working hour and if anyone can knows of a boiler that is looking of 24/7 work with 2hr a year annual leave when the nice man from British gas can give it a make over which we will pay for can they please get in touch.

      This is my way of saying Keston boiler is not worth even thinking about and you should keep well away from them.

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      12.01.2010 20:45

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      I had this boiler installed nearly eight years ago on the advice of my plumber who had one himself and rated it. Most years we have had engineers out under our British Gas contract to sort out the ignition failure. The condensate and dirt gather because of a design fault, they tell me. The boiler then turns itself off and we come home to a cold house. It is a pity as it does a good job of heating the house when it is working and the Honeywell thermostat we have with it is excellent, but an unreliable boiler is a constant worry.Reading all these reviews makes me wonder whether to cut our losses and start again with a different make.

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      12.01.2010 11:52

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      Dont BUY KESTON - Read the narative for support also

      Dear ALL - Dear Reader. ( Applies to Qudos 28 and C25 )
      So you have or are planning to purchase a KESTON, be it a C25 or any other then STOP - DO NOT BUY KESTON ITS MONEY DOWN THE TOILET : Go and review Worcester Bosch or other.

      Critical experience by ALL Keston C25 owners clearly demonstrates that the C25 or the renamed Qudos 28 are completely unreliable and the service you will recieve from Keston is shocking. DO NOT BUY ANY KESTON PRODUCT

      I am an Electro-Machanical engineer of 25yrs and after detailed personal investigation into this unit I was very concerned if the failures I observed could be rectified ecconimically. I believe I know the issue behind the failure, but it requires almost a ground up re-design and life it too short

      So .. you as many before you have a C25 and no HW or CH and the unit is say 4yrs old .. what do you do ?? Dont Panic or get frustrated just yet

      Opinion #1 : If the unit is within warrenty keep calling keston - it may take 15 minutes to get someone but its worth it .. LOG YOUR COMPLAINT AND GET THEM OUT : Get them to read back the notes they have made in regards your claim.. any future warrenty claim will start from this date.. AND state to them the obvious that this unit has a history within the internet community of unreliable service and you want your money back NOW at this point. Sight Trading standards:

      2. If your unit is out of warrenty as is mine, then do the following: To get HW and CH in this weather take out a HOME CARE agreement with British Gas .. it cost £185 if they can fix it !! else they refund the costs.. then the game starts. Just keep insisting the unit DOES NOT WORK.. Dont say it some times work, state that the unit is non operational and you are at risk due to the cold. If you have younf children then mention this too as it prioritises you also
      British Gas are obliged to visit and will soon call keston out to fix as they can not or are unwilling.
      It will be repaired, parts replaced, and it will keep failing, just keep calling British Gas Back and back and back.. then if it ever gets fixed and problem solved then take out the British Gas Home Care monthly payment ..

      The alternative is to keep shelling out on parts and labour very expensive.. this way around you see one bill £185 .. and boy so far they have spent in my estimate 12 visits: 4 pcbs and other parts.. and another due today - £900 .. price of a new boiler..

      In the spring buy yourself then a Worcester Bosch 30CDI and if you live near Kent then dump your scrap unit in the Keston MD's parking space..

      So .. hope this helps .. AGAIN .. DO NOT BUY KESTON - SIMPLY NOTHING >> IT WILL SERVE YOU AS WOULD A CHOCOLATE TEAPOT <<

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