This is a followup of my last post where I was looking for a solution to our problem with smell coming from the kitchen hood (extractor) when neighobour is cooking. I got many good suggestions, but @Finlsolo963 pointed me to Shut-off Damper with motor that looks like perfect fit. I hope it can stop the smell completely in closed position and open automatically when we start using hood.

I was looking at this Damper

I could use Shelly Plus Plug S to detect power usage of the hood which trigers Shelly 2.5 to open Damper. After turning off the hood, power will go down and automation would triger another channel of Shelly 2.5 to close the Damper.

What do you think about the setup? Is there any better hardware you would suggest? I dont mind spending more for beter sealing when Damper is closed. I like the one from the link mostly because its 220V and I could use shelly relays which seems super simple to implement. I already own Shelly Plug S that I could use, but its not a must. Im also opet to zigbee devices.

Bonus question: what would happen if something goes wrong and both channels of Shelly 2.5 triger at the same time? It would be like pressing Open and Close buttons at the same time.

Thanks in advance

  • Avid AmoebaEnglish
    2·
    9 months ago

    Err, a standard damper closes automatically when you’re not using the hood. When you turn on the hood, the pressure opens it up and you’re good to go. Physics automation.

    • rambos@lemm.eeOPEnglish
      2·
      9 months ago

      Yeah, I have this one right now

      It stopps the smell 90%, so still stinks ater long cooking. I believe it goes trought tiny holes around the hinge. As I mentioned in previous post, I also added filter and still sucks.

      Most motorized dampers I found are also spring loaded in closed position, but motors are DC 12V or 5V which seems to be more complex to implement than 220V one from ebay.