For some time, I've been considering the best way to integrate my cooker hood during MVHR installation. Having read the good words on here, it seems that direct integration from hood to MVHR is a BAD IDEA, so I've come up with this- Comments appreciated. My situation is this: 1) Large kitchen diner with induction hob plus 600mm  externally vented extractor hood. There is no room to replace the extractor  with a wider hood due to cabinets being in place. The hood does not cope with cook