Cooker extractor and building regs

[Sym]

Not sure if this is the right forum. We have a new cooker in the chimney brest and an extractor above it. We have had the builder knock a whole in the old chimney (i.e. open it up) so we can attach the extractor hood above the cooker and let it blow into the old chimney. The kitchen people have come and that say the whole is not quite big enough, so the builder has sent his man to make it a bit bigger and he says it needs to be 75cm above the cooker (which it is not as the builder lowered the chimney with plasterboard)

Is he right ???



cheers

 

[securespark]

Two points strike me here. First, the vent duct for the hood should be taken to the outside, not terminated in the breast.

Second, the fitting instructions will tell you how far away from the hob the unit should be mounted.

 

[Sym]

1. it re circulates the air so it does not actually blow into the chimney
2. The kitchen people will be fitting it after the whole is made bigger and so i do not have the instructions. they have not commented on the gap so i presume they know what they are doing - but you never know ..