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Almost right 1sq" per 5000btu in excess of 25000btu (7Kw)1 sq inch per 5000 btu ater the first 7000 if my memory hasnt failed me
Discuss kingfisher CF 150 with aspestos flue in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Almost right 1sq" per 5000btu in excess of 25000btu (7Kw)1 sq inch per 5000 btu ater the first 7000 if my memory hasnt failed me
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
Thought it was 10/5 cm High/low for CF to outside? Less 7kw allowanceOld 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
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.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
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.
I apologise. I misconstrued your comment. I had it in my head that you meant that the calculation should be done taking the screen into account.
Obviously, fly screen awareness IS relevant, as you say.
well i have come across quite a few of this type over the years that have a fly screen so best to checkThose old type plaster vents didn't have a fly screen
Agreed. There were many types of old plaster vents that came with a flyscreen stuck to the back as many of the louvres used to break easily when trying to remove them.well i have come across quite a few of this type over the years that have a fly screen so best to check
Plaster Vent With Fly Screen 225mm x 75mm
Reply to kingfisher CF 150 with aspestos flue in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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