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[alfie]

Hi all,can anybody tell me,are the exhaust fumes of a combi boiler harmful.My next door neigbours vent is very near to my bedroom window,and in certain wether conditions drift towards the window.Is this harmful to health.

                                                        TIA Alfie.

[Sir Tigger KC]

Carbon Monoxide is deadly.   

[Kevin Wood]

What you can see is just steam, and it's exacerbated in the cold, foggy weather we currently have, but the flue will also vent some harmful gases such as carbon monoxide.

There are rules as to how close a flue outlet can be to a window which can be opened, and the flue must be directed away from the window. 300mm rings a bell but I'm not an expert.

[Kevin Wood]

Just to say 300mm is assuming it's emerging from the same wall, as it would if the houses were terraced. If it's opposite the window, the safe distance is much greater.

[tigers_gonads]

300mm or greater iirc 

[tigers_gonads]

Carbon Monoxide is deadly.   

Can you get it in tablet form for my neighbour   

[Kevin Wood]

Carbon Monoxide is deadly.   

Can you get it in tablet form for my neighbour   

[Sir Tigger KC]

Carbon Monoxide is deadly.   

Can you get it in tablet form for my neighbour   

No need for that Mr Gonads, as I'm sure a bit of pipework isn't beyond the capabilities of a clever chap such as your good self! 

[Andy H]

Hi all,can anybody tell me,are the exhaust fumes of a combi boiler harmful.My next door neigbours vent is very near to my bedroom window,and in certain wether conditions drift towards the window.Is this harmful to health.

                                                        TIA Alfie.

Can you post a photograph of it?

A well maintained balanced flue boiler should mostly emit water vapour and carbon dioxide. If the flue discharges into a confined space then it may be possible for the flue gases to be drawn back into the boiler which could cause carbon monoxide production (due to lack of oxygen).

[Marks DTM Calib]

Building regulations document A covers the requirements and is actually pretty readable (it is aimed at plumbers and builders after all!), this is available to view free online:

http://webarchive.nationalarchives.gov.uk/20151113141044/http://www.planningportal.gov.uk/uploads/br/br_pdf_adj_2010.pdf

Its 600mm from a boundary as the requirement.

There is also mention of a guide which relates to positioning of condensing boiler flues such as it can cause nuisance to a neighbour (Statutory nuisance):

http://webarchive.nationalarchives.gov.uk/20151113141044/http://www.planningportal.gov.uk/uploads/br/br_pdf_ptl_condboiler.pdf

Section 6 gives all the info.

Its not hard to fix for the installer either as there are plume diverters available which address the issue.

[alfie]

It's a terraced house,not normally bothered but this cold weather and chill wind makes you notice it more.We cannot leave the top window open (bedroom) during daytime. Take a photo tomorrow.
                                                                           Alfie,

[Kevin Wood]

I must admit, I don't really feel the cold too badly, but I've not felt the urge to open a window in some time (well, excluding on my hollibobs when if was 'kin hot).

[alfie]

My Mrs is a fresh air freak,
                                       Alfie,

[TheBoy]

I must admit, I don't really feel the cold too badly, but I've not felt the urge to open a window in some time (well, excluding on my hollibobs when if was 'kin hot).

Clean, fresh, crisp, cool air is good for a good nights sleep.

Mrs TB strongly disagrees, mind.

[Doctor Gollum]

I must admit, I don't really feel the cold too badly, but I've not felt the urge to open a window in some time (well, excluding on my hollibobs when if was 'kin hot).

Clean, fresh, crisp, cool air is good for a good nights sleep.

Mrs TB strongly disagrees, mind.

Got threatened with a fortnight in hospital one year... had a horrific sinus and chest infection on top of death one February and my room was colder than the fridge... heating was on 25° but I had turned my radiator off as it was too hot Grudgingly pulled the window too