Hello everyone,
We are currently building a new energy-efficient house and are considering whether to have a core drill hole installed for kitchen exhaust ventilation. Our chosen range hood can operate either as exhaust or recirculation. The project manager recommended using the hood in recirculation mode with activated carbon filters. However, the kitchen installer advises exhaust mode, as only this option supposedly eliminates odors and similar issues effectively.
We are now conflicted and thinking about having the core drill hole made but initially not using it, operating the hood in recirculation mode instead. The core drill hole would be fitted with an external grille cover and internally closed off with a cap. If needed later, we could connect the hood with a duct and have the setup ready for that.
From your point of view, is this a sensible approach, or am I missing something? What would you recommend? Should we have the core drill hole made or rather not?
Thanks in advance and best regards
We are currently building a new energy-efficient house and are considering whether to have a core drill hole installed for kitchen exhaust ventilation. Our chosen range hood can operate either as exhaust or recirculation. The project manager recommended using the hood in recirculation mode with activated carbon filters. However, the kitchen installer advises exhaust mode, as only this option supposedly eliminates odors and similar issues effectively.
We are now conflicted and thinking about having the core drill hole made but initially not using it, operating the hood in recirculation mode instead. The core drill hole would be fitted with an external grille cover and internally closed off with a cap. If needed later, we could connect the hood with a duct and have the setup ready for that.
From your point of view, is this a sensible approach, or am I missing something? What would you recommend? Should we have the core drill hole made or rather not?
Thanks in advance and best regards
N
nordanney20 Mar 2026 23:04If the manufacturer does not require a different diameter for any flexible reasons, that is naturally acceptable.
Ideally, a fresh air wall vent should be installed. Therefore, this planning should be handled by the kitchen specialist.
Otherwise, open the window, and it must not be forgotten that even with recirculation, the moist air ultimately needs to be vented outside, since ventilation systems usually do not achieve the necessary air exchange.
Otherwise, open the window, and it must not be forgotten that even with recirculation, the moist air ultimately needs to be vented outside, since ventilation systems usually do not achieve the necessary air exchange.