Can cooker extract go down instead of up?

slopemaster

I really need a cooker hood and extract to stop the room getting all greasy, but the cooker is on a party wall so can't go out that way, and I don't want it going right across the ceiling.
There is a cellar below, so I wondered if the extract can be ducted to go down instead of up? Would that work?

WestonDave

You could go for a recirculating one which doesn't need a duct - that would remove the grease by not the humidity and steam. To some extent if you cook with a lid on boiling pans this might mean that you can keep the heat etc you generate whilst cooking in the room and save on other heating.


There are also downdraft ones which this refers to http://www.besthoods.co.uk/2011/08/downdraft-extractors-10-things-you-need-to-know-before-buying-a-downdraft-extractor/ - they seem to be ducted under the floor which suggests that ducting downwards is generally OK (there's nothing that special about these in terms of their ducting requirement).

slopemaster

Thanks, that's really helpful!