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Discuss kingfisher CF 150 with aspestos flue in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. bazo6557

    bazo6557 New Member

    Just a quick one... are these still legal Picture attached
    I thought they had made the air supply to them nearly impossible to achieve
    making them obsolete.
    Where would I get the high and low lvl vent requirements for this boiler

    thanks in advance

    IMG_0715.JPG
     
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  2. Gasmk1

    Gasmk1 GSR

    so long as ventilation is correct there is no problem
     
  3. Gasmk1

    Gasmk1 GSR

    that looks like a connaught gas force sevice record sticker on the wall
     
    • Agree Agree x 1
  4. firemant

    firemant Plumber GSR

    I assume you are a RGI?
    If so, you should be able to calculate it, using the straightforward calculation.

    EDIT: Sorry, just reread the OP. What do you mean when you say "they" have made ventilation near impossible?
     
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  5. Gasmk1

    Gasmk1 GSR

    What is the rating of the boiler.
     
  6. jtsplumbing

    jtsplumbing Plumber GSR

    Old Potterton Kingfisher 150 (150000 btu) 44Kw if vent direct to outside only needs one vent can be High or Low just use standard method of working out size of vent
     
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    • Agree Agree x 1
  7. Gasmk1

    Gasmk1 GSR

    thats what i was getting at but need to check that air vent as it usualyy ahs a bug screen inside so compromises the size of vent
     
  8. jtsplumbing

    jtsplumbing Plumber GSR

    Looking at vent in photo it seems to be big enough, but as you say needs to check inside & out that it is clear
     
  9. Harvest Fields

    Harvest Fields Trusted Plumber GSR Top Contributor!!

    Been to a job today that has 2 of these still running and still immaculate. 1 for the swimming pool and 1 for the house.
     
  10. stevetheplumber

    stevetheplumber Plumber GSR

    1 sq inch per 5000 btu ater the first 7000 if my memory hasnt failed me
     
  11. jtsplumbing

    jtsplumbing Plumber GSR

    Almost right 1sq" per 5000btu in excess of 25000btu (7Kw)
     
  12. firemant

    firemant Plumber GSR

    Bug screen?
    Not allowed.
     
  13. firemant

    firemant Plumber GSR

    Thought it was 10/5 cm High/low for CF to outside? Less 7kw allowance
     
  14. firemant

    firemant Plumber GSR

    Sorry. Thought we were in a compartment. :(

    44kw?
    (44-7)*5=185cm2.
    The complication of fly screens reducing free air is irrelevant, in as far as they cannot be present
     
  15. Gasmk1

    Gasmk1 GSR

    It's not irrelevant I said he needs to check that vent as that type has a fly screen if so he needs to remove and replace the vent.