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What kind of hole is the oil smoke hole·· This wrong hole does not open the smoke pipe outlet, and does not connect to the common flue. There will be no smoke leakage. If you make a mistake in the hole of the public flue, it will leak smoke.
Generally, the smoke exhaust hole of the range hood is 168 mm, and there are 180 and 200 respectively. Vintage range hoods have 159's. >>>More
Close the wrong hole and re-punch it!
You must have professional equipment to play, you can contact the installation of the range hood master or after-sales staff to punch holes. >>>More
There should be a few more 5-hole ones, and 12-hole ones are not interesting. >>>More
If it is a self-built house, it can be like this; If it is a commercial house, the property management company does not allow it to do so.