Posted By Mitch Why you wouldn't segregate at home, mine is in the bathroom.

Posted By CFT Generally Stephan there would be a purpose built area (plant room) and as such certain precautions should be taken such as fire doors as you suggest often constructed with plate metal covers, among other things (smoke/heat detection/ emergency lighting/auto cut off [gas], etc etc)depending on what the boilers are, (gas/oil etc). As enquired above, if you want to supply some additional information you will get a definitive answer. CFT

Posted By CFT I'll need to come back to you, there have been some changes of late affecting combi style boilers and for new build they should be of a condensing type, I need to be certain that your works to convert are not classed as 'new build', although the boiler probably is condensing style unless it was in the property to start with. Part L affects the conversion of commercial premises and in particular what boiler you have. As far as sighting goes you will have had a survey no doubt when converting from a house to a commercial building, you will have been required to have building regulations and I would have expected along with all the other fire doors that you would have had to fit one for the bathroom would have been mandatory, ventilation would have also been a consideration and I would expect to see a permanent means of ventilating the room, as indeed you would with a domestic building. CFT