"JimGC" wrote
| I suspect my next move is to get a CORGI engineer in to
| do the above checks and give the thing a once
| over - not just for safety but for operating efficiency. I
| wonder whether this is my responsibility or the landlord?

It is your landlord's duty to provide you with a copy of the current annual
Landlord's Gas Safety Certificate. Failure to do so is a criminal offence.
It is also his responsibility to keep the heating and hot water systems in
usable order which I think includes telling you how to work them. Operating
efficiency (cost of running) is not an obligation, however, and will not be
checked by a safety inspection.

Owain