Andrew Smith : It depends on the size of the room and the input of the cooker
Andrew Smith : The extractor will make things worse by removing the air from the room also
Andrew Smith : You will need at least 100cm2 to start with
The room is approx 18m square with two fixed roof lights
I was looking at a double gas oven with 4 gas burners, 60cm wide
Andrew Smith : To be sure, you will need the kW rating of the aplliance
It says 1.24kw
Andrew Smith : Total input? That's not much for 4 rings and a double oven?
Oh I will look again at the specification
The burners are:
1 x 2.9 kw, 2 x 2 and 1 x 1 = 11.9
It only gives the oven capacity as 34 and 79 litres?
The 1.24kw was for the electrical conection
Andrew Smith : You should allow 3kW per oven too
Andrew Smith : So 18kW
Andrew Smith : normal appliances require 5cm2 per kW
Andrew Smith : so 100cm2 should suffice
Andrew Smith : a typical 9 x 6 ventilation grille
So are you saying I just need one ventilation grill in the outside wall plus an extraction fan to take away cooking smells and it will be compliant?
Andrew Smith : The extractor fan makes it worse as when it is running it is removing oxygen from the room that you need to replace
Andrew Smith : You may need to put in another 100cm2 to compensate for this appliance
So a re-circulation fan then or NO FAN
Andrew Smith : Re-circ fan is fine
OK so to clarify then a re-circulation fan NOT EXTRACTION Fan and One ventilation grill and we are ok?
Andrew Smith : yes, should be fine
The room is already built but the existing consumer unit that has been installed would not take an electrical appliance so I am looking at gas
Andrew Smith : not an excuse for not fitting a CO2 alarm to make sure
Ok so 1 x ventilation gril, re-circulation fan and a carbon monoxide alarm, anything else? I have never had a gas oven always electric with a separate gas hob so this is all new to me. But i have a small catering business so will be using the oven daily
Andrew Smith : it will be fine, the CO alarm will ensure you are safe
Should this be hard wired like a smoke detector or battery? Can you get them hard wired?
Andrew Smith : you can get hard wired with battery back up
Andrew Smith : http://www.ebay.co.uk/itm/BRK-Dicon-CO850MI-Carbon-Monoxide-Alarm-Mains-Powered-/280693958531
Right Ok Thanks for all the info wouldn't like to pass out whilst making cupcakes!
Andrew Smith : No problem