Which direction should I flip the switches to in order to close/open the trickle vent in my apartment? Not used to this kind of system! Kiitos kaikille!

by _toto75

3 comments
  1. It’s open on your photo (I believe). But you can always touch the top of it to check if it’s closed.

  2. Currently it’s open. But you can’t close it completely the other position is for winter and the airflow will be less but not compeletly shut off.

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