I am purchasing a townhouse and going to renovate the kitchen. I have been informed by someone that i need to have the range hood flued to go outside. Can someone please confirm this, as i was looking at purchasing the Bellini 60cm slide out retractable range hood, but wasn't sure if it had to have a vent going outside how i could do it with this model or if i had to go for something completely different. Hope this makes sense.