A:AnswerHello RobertG! Per the Installation Instructions, page 5, https://go.aws/2ZM6tFa, it stated there would need to be a 36" cutout for a 36" model. We hope this helps.
A:AnswerHello DDMac, we do not recommend installing this in an existing hood. And the controls are on the top of the unit. Hopefully this information is beneficial to you. Thank you for your inquiry regarding our KitchenAid appliances!