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condensing

Condensing boilers are water heaters fueled by gas or oil. They achieve high efficiency (typically greater than 90% on the higher heating value) by condensing water vapour in the exhaust gases and so recovering its latent heat of vaporisation, which would otherwise have been wasted. This condensed vapour leaves the system in liquid form, via a drain. In many countries, the use of condensing boilers is compulsory or encouraged with financial incentives.

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  1. J

    worcester 29He heat only condensing boiler

    Can anyone help. My boiler makes a humming sound on low gas rate and for the life of me i cant suss it out. Its great when i push chimney sweep on for full burn, but when it starts up its like blowing across ac omb with paper on it if you know what i mean. Operating gas pressure o.k. Flue gas...
    • Jeff Stockdale
    • Thread
    • boiler condensing condensing boiler heat heat only oil worcester
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  2. B

    combi boiler for a combi condensing

    hello people ,got a job to swap a potterton combi boiler for a wocester condensing combi,im new to installing as ive said before,the customer is supplying boiler and flue,he just wants a labour price ,the jobs is down is essex about an hours drive, what do you rekon i should charge as i dont...
  3. V

    Condensing soakaway pit

    Hello All, I hope every one here is well. Has anyone here made a soakaway pit as a terminal for a condensate pipe? If so can you give us a few hints on how to do it. I am about to do one next week and would like to get it right first time. cheers DD368
  4. K

    Boiler registration

    From what date was it a legal requirement to register a replacement boiler? Any link to a formal document with the date much appreciated.
  5. M

    Ferrolli Sys 10-23 Condensing boiler needs resetting everyday

    Since saturday, each time I have switched the boiler on it has failed to stay lit without the reset button being pressed. Tonight I had to press it about 10 times before the boiler staed ignited. Once started it seems to shut on and off normally (so far). When switched on, the boiler does...
    • Mikeycollins
    • Thread
    • boiler condensing condensing boiler could ferrolli needs oil someone switched
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  6. R

    One for the landlords

    SAW THIS ON FLEABAY, NOTE THE GAS AND CORGI BIT. GAS CONDENSING BOILER TRAINING&D.I.Y UK PLUMBING COURSE on eBay (end time 02-Mar-11 20:35:08 GMT)
  7. C

    firebird enviromax slimline condensing combi 20kw......problem

    over the past couple of weeks my boiler has had problems firing up until i clean the photocell "black soot" but tonight it wont wire at all...the photocell is clean but it keeps trying to fire say every 20 seconds or so and it stinks..lol.......any ideas ???:confused:
  8. B

    Condensing Pipe work.

    Combination Boiler Hello All Just run a near complete Heating system. all surface pipe work. The problem is that the main is condensing. Not much I can do about this, or is there. Of cousre the main can be lagged, where it comes down walls they are in cupbaords vetically so not a...
  9. G

    Strip Down Condensing Boilers!!

    Iam generally new to the trade and work as a service engineer. My Question is related to Telegan Readings on Condensing Boilers in particular the worcester greenstar models as i come across them quite often. As these condensing boilers are getting on a bit 6, 7 years old and are requiring to be...
    • Gunner Plumber
    • Thread
    • boiler boilers condensing course exchanger oil readings strip worcester
    • Replies: 13
    • Forum: Plumbing Jobs | The Job-board
  10. A

    Condensing combi-boiler and Wood-burning stove

    Hi I have a five-bedroom Victorian terrace house which includes a loft conversion, so on 3 floors. Approx 5 years ago I had a Worcester condensing combi boiler installed which heats my house sufficiently. However with the continuing rise in gas costs, I am now paying 20% of my monthly...
    • agent_scully
    • Thread
    • boiler burner central heating system condensing oil stove system water
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  11. B

    a boiler has how many condensing pipes?

    Hi guys, I am doing some gas training now. A couple of days ago I helped a gas fitter installing a vaillant combi boiler. I think there are 2 condensing pipes. He connected one to the drain and the other one to outside directly. We were busy and I did not have time to ask him. So why boiler...
  12. W

    Condensing Boiler Flue Issue

    Hi I had my Combi Boiler replaced a little over a year ago with an Ariston Micro Genus 32 HE. The previous boiler was the non condensing 27kw version. Now the boiler is working fine probably good for about another 2 weeks being an Ariston :D Obviously this flue produces a lot more vapour clouds...
  13. S

    condensing boiler in the loft

    just was with customer to talk about there options of boiler change ,boiler is in the loft and that is where they want the new combi ,just thinking of the condens pipe ,is it best to run it to the soil stack or ......??? loft is use as storage only! gas 22mm ,and 25 mdpe already there...
  14. C

    Condensing boilers - rubbish

    All we get this winter is condense pipe blocked-boiler locks out - ok its been financially good but when the regulations changed these boilers were sold as the answer to all bla blah. The reality is condensing boilers that 'save energy' now need trace heating for the condense, to be...
  15. C

    Volkera Condensing Boiler - froze, thawed, now not working

    My boiler a Mynute HE stopped worknig last night. We were told be a friend of a friend to defrost the condensing pipe - which we found was frozen solid. Since we defrosted the pipe, the boiler can now run and heat the radiators and water, but it cuts out when it reaches about 67 deg C, and...
    • coldinyorkshire
    • Thread
    • boiler condensing condensing boiler not working oil working
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  16. H

    I have a C28 Heatline condensing boiler with the Overheat Safety Thermostat?

    I have a C28 Heatline condensing boiler with the Overheat Safety Thermostat light flashing red. It says to check and replace and i have replaced it but still the red light is flashing so no heat or hot water. PLEASE HELP!
    • hassom
    • Thread
    • boiler condensing condensing boiler heatline oil overheat safety thermostat
    • Replies: 15
    • Forum: Plumbing Jobs | The Job-board
  17. GQuigley67

    any thoughts on this article about condensing boilers ?

    Salamander Condensafe + neutralises acidic waste from condensing boilers news on PlumbingPark.co.uk would like to know peope's thoughts on this, do you think its just a lie for people to buy their product ?:P
  18. G

    glowworm condensing boiler roars

    i have a glowworm 30hxi which is 1yr old, in the past few weeks it as started to make a roaring noise, it doesnt do it all the time but now and again, i have been next to the boiler when it does it, it will be getting up to max temp on the boiler when it will roar and the temp will rise...
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