A very elementary question which most of you wouldn't have to think twice about, but...
My cooker hood has just today finally packed up and 'joined the choir invisibile'. It's an absolutely basic type and quite ugly but it is vented to the outside and actually worked quite well. (Photo here if it helps:
formatting link
question is how difficult would it be to replace it myself with (say) one of these:
formatting link
something similar? The electrics are no problem - the old one simply plugs into a 13A socket on the wall above the unit. The dimensions are almost the same, but what worries me is how it fits onto the outlet pipe - I know absolutely sod all about tubing, pipes, ducts and all that sort of thing. Pathetic I know, but there it is.
I'd be immensely grateful for any (practical) advice - thanks.