K
Klebertrupp6 Mar 2018 16:18Hello,
I am currently renovating and have (once again) encountered a problem that seems unsolvable to me.
Until now, the cooker hood has been operating on recirculation mode and was blowing grease and yellowish deposits onto the wall right next to a duct that leads outside.
I want to fix this problem by connecting the recirculation system to the external duct.
It would make things a lot easier if I could connect the cooker hood to the sealed duct on the left under the extractor fan.
This way, the extractor fan could stay as it is and I wouldn’t have to remove that annoying plastic box, which would be a huge mess, plus I might have to cover the duct since it protrudes in front of the kitchen units.
Is there a way to find out if this is a chimney flue or a ventilation duct without removing the cover?
For example, like with the boiler and heating system or hot water: turning them on fully and placing your hand on the cover to see if it warms up?
Best regards,
Chris

I am currently renovating and have (once again) encountered a problem that seems unsolvable to me.
Until now, the cooker hood has been operating on recirculation mode and was blowing grease and yellowish deposits onto the wall right next to a duct that leads outside.
I want to fix this problem by connecting the recirculation system to the external duct.
It would make things a lot easier if I could connect the cooker hood to the sealed duct on the left under the extractor fan.
This way, the extractor fan could stay as it is and I wouldn’t have to remove that annoying plastic box, which would be a huge mess, plus I might have to cover the duct since it protrudes in front of the kitchen units.
Is there a way to find out if this is a chimney flue or a ventilation duct without removing the cover?
For example, like with the boiler and heating system or hot water: turning them on fully and placing your hand on the cover to see if it warms up?
Best regards,
Chris
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