A:Answer I think I can answer your question, as my just purchased and installed the Broan BSCQ130SS model. It is a cabinet range hood which can be vented (wherein ductwork to the outside used) horizontally from the back through an outside wall of your house, or vertically through the top and inside the upper cabinet of your kitchen then up through the roof; It can also be converted to a ductless range hood (wherein ductwork to the outside is not used) wherein it recirculates air back into the kitchen. I used the vertical option because that's the type I replaced and the ductwork through the roof was already in place.
