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keston

Keston is a village in Greater London, England, located within the London Borough of Bromley and the historic county of Kent. It is part suburban, part rural in nature and lies on the edge of Hayes Common, just beyond the London conurbation to the south of Bromley Common. It includes the small hamlet of Nash to the southwest. The northern, more suburban part of Keston is sometimes referred to as Keston Mark.

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  1. R

    Keston C25 fault

    Hello All Just stuck on a C25 keston , wondered if any of you have come across the problem. The boiler seems to be doing everything except firing. It goes all the way to ignition and gas valve opens up as I can smell it but its not firing. What am I missing. Help much appreciated.
  2. Hobo128

    Fitting a Keston twin flue condensing boiler

    Hi has anyone dealt the Keston combi 30 (twin flue system). I went to see a job earlier and there is already a Keston system boiler in with this strange twin flue system in.(Which by the way is made out of 50mm solvent weld waste pipe. The propery is a 30-40 unit block of apartments. In the...
  3. kozak1968

    Keston Blocked.

    I went to a Celsius 25 today. The thing would fire up for about a minute the go off. Gas pressure at the meter was 23mb when running. The inlet of the gas valve dropped to minus 1.5mb. I took the gas valve out and found it blocked with a blueish shale which was not magnetic. I've never seen it...
  4. S

    Replacing Keston twin flue

    Need to replace a Keston twin flue boiler. The flues currently go vertically out the roof. The roof is felt. would you remove existing flues and if so how would you seal them off? with the new flue would you use a flat lead slate on the felt roof? If so what would you use to seal it or is it...
  5. W

    Keston c36 no CH

    Hi Have keston c36 have had E11 error every few weeks but no major problems, now no CH water ok. Sometime water runs cold and rads heat up other times water is fine.. So does this mean pump or DV issue.. Had service few months ago and was told rads might have sludge as cold at bottom hot at top...
  6. S

    Keston vs Ideal Logic?

    I've currently got a Keston C36 due to a longish flue run but looking to replace it. The flue can't be changed easily (buried in a roof void). I see that Keston were bought out by Ideal a while back and the new Kestons (C30 / C35) are rebadged Ideal Logics. The Ideal Logic is cheaper to buy...
  7. T

    Keston Celsius 25 - incorrect gas rate

    Keston Celsius 25. The gas rate is over 10.5% less then manufacture instruction. MI says + or - 5%. Burner pressure is more than 1mbar over MI. Manufacture says that the burner pressure is manufacture preset, so should I try to reset it and how to do that, the instruction does not show how to...
  8. L

    TEsting a boiler fan unit: Keston C40

    Hi Visiting from the electricians forum. Any help or advice appreciated! Boiler error code says fan problem. Plumber wants to replace but at £200 I first want to be sure that the fan is the problem and not the controller. He says that he cant test the fan to make sure?? The fan has two...
  9. E

    Keston Qudos 28s

    Can anyone help with the above boiler it keeps blowing 4A fuse on PCB Keston tech says its fan or transformer disconnected fan wires from PCB, transformer been removed and tested its OK, Any other suggestions please apart from replacement boiler I have no previous experience on Keston boilers...
  10. E

    Keston Qudos 28s help

    Can anyone help with the above boiler it keeps blowing 4A fuse on PCB Keston tech says its fan or transformer disconnected fan wires from PCB, transformer been removed and tested its OK, Any other suggestions please apart from replacement boiler
  11. E

    Keston Qudos 28s

    I have no previous experience on Keston boilers but have recently been asked to check out two kestons in a boiler room have established it doesn't come under commercial, they have stood ideal for over a year, but fired up ok after relevant checks, purge, turn pump over manually etc. The 55c ok...
  12. B

    Keston C55

    Hi Hoping that some of you guys will be able to help. I work for a small hotel group in the South West and we have been experiencing some real issues with a rig of 2 C55s installed in 2009. The rig runs around 24 en suites (mainly thermostatic mixer showers and the odd bath) on a pressurised...
  13. B

    keston c55

    got an on going issue with a keston c55 boiler it runs a swimming pool heater in a large house - the boiler is the highest point of the system - this boiler eats auto air vent on boiler at the rate of one every 6 months. the vent sticks open and leaks spoke to keston who said not much can be...
  14. kozak1968

    Keston Celcius 25

    Went to look at the boiler on saturday. It was going throught the motions ( fan, gas, spark) then cuts out straight away. The MI says cabinet overheat. I spoke to keston, Gas pressure o.k, then cut the yellow wire to trap. It worked......At least for a day then went back to the original...
  15. S

    Keston concentric flue concerns

    , How much fall do I require over a 1m length on a concentric flue for a 50 mm solvent weld installation , it's for a keston combi boiler. Am I right in thinking its a 1.5 degree fall towards the boiler which is 26 mm over the 1 m length ? Also can I use galvanised banding to support the flue ...
  16. J

    Need a Keston Engineer

    I have a customer who is having problems with his Keston 50. Anyone out there in the Winchester, Hampshire area who could help him out? Thx
  17. V

    keston celsius 25

    Hello All, was called to a keston celsius 25 to check escape of gas. I found gas escaping from a broken fan seal as the boiler was running. The gasket was replaced but now the boiler will not fire up. tried it many times until and eventually it fired up? it was running sweetly but then i...
  18. M

    Keston Celsius 25 Boiler Equivalent

    Dear All,First post ever. Not a professional just a diligent homeowner.Have 4 bed, 1 bathroom, semi with a Keston Boiler I inherited. (been in 6 months). Boiler failed and trusted plumber / heating engineer has recommended replacing the boiler.He has told me that the Keston Celsius 25 is £2200+...
  19. kozak1968

    keston celcius 25c

    I went to service the boiler above and got some high analyser readings. Ratio 0.0059% co2 11.3% co 680ppm. I took the case off and the flue exhaust tube appears to have some distress marks to it. Has anyone else come across this before.
  20. hammers4spanner

    keston boiler

    Have a keston system boiler lined up for a service ,have not seen it as yet but have been told its approx 7 ish years old and has not been serviced for approx three years so am expecting it to have a couple issues . Is their anything on these boilers that is commonly problematic and certain...
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