Hello, we need a kitchen extractor fitting at our property. We have an IKEA kitchen fitted with a recirculating extractor at the moment. This extractor had the option of being turned into an external system. We are looking to reduce Condensation in our kitchen and would like to convert to an externally venting system. Not sure if we would be able to retain the cooker hood and upgrade the fan? We currently don't have a hole in the wall for the extractor.