In article ,
Tim Lamb writes:
In message , JimK
writes
I want to line the cellar ceiling and hide all pipes, cables etc one of
which is the gas to the CH boiler. Due to it's position it will be just
above the false ceiling... is there a requirement to mark it's presence
in some way??

Umm.. don't the gas regulations get a bit stuffy about gas pipes in
voids?

Yes. IIRC, if the void is larger than 0.1m^3, then it has to be
ventilated. The size of the vents depends on the volume of the
void, and the vents used must have their effective vent area
written on them and must not be able to be closed.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]