I've got a fairly big kitchen, with a very small window, that coupled with the fact that I use a wok for cooking on almost a daily basis means my cooker hood is on high almost constantly. IT SOUNDS AWFUL. So I'm thinking of removing the fan from my hood and just leaving the shell. . . .then placing an inline fan in the flue which runs vertically up through my bathroom and into the attic. . . .so. . will it work? have you done it before? what size fan should I use? any help