Boiler under stairs

[MikeJEN]

hi, I've been reading various thoughts on this so am after clarification on the building reg governing the placement of a boiler in a ground floor cupboard under the stairs. My understanding is that this is permitted in a 2 storey residential property. However in a 3+ residential property the cupboard would need to be made fire resistant?? My concern is my current boiler is under the stairs and I am looking to have a loft conversion, thus making my property 3 stories (inc ground). If I got the boiler replaced before the loft conversion was carried out would I still need to fire proof the cupboard at a later date when the loft conversion is carried out? Or would this requirement not be applied as the boiler was in situ before the property was converted from 2 to 3 stories.

Thanks
Mike

 

[^woody^]

Boilers are not put in fire resistant enclosures in high rise blocks.

If your boiler catches fire, the subsequent gas explosion is not going to be contained behind any door.

 

[chappers]

The boiler is irrelevant if doing a loft conversion you will need to protect the underside of your stairs to 1/2 hour resistance anyway