this post was submitted on 22 Feb 2024
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Turn on kitchen hood when naighbour is cooking (lemm.ee)
submitted 8 months ago* (last edited 8 months ago) by rambos@lemm.ee to c/homeassistant@lemmy.world
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Hey peeps, I moved to a new appartment and my kitchen hood is connected to the same pipe (chimney) as hood from appartment below. The issue is smell coming from our hood when neighbour is cooking.

I was thinking about some kind of sensor (air flow or humidity or smell?) that can detect when neighbour is cooking and then HA would turn on our hood at the lowest speed.

I have no clue what kind of sensor would be suitable. I also need to figure out how to start our hood with HA (hacking with relay or buying some kind of smart kitchen hood is acceptable). Our kitchen hood is just regular Faber with 4 position switch for selecting fan speed.

Anyone have idea how to solve that issue? What sensor would be best for that?

Note that I have already installed 1-way valve (not sure whats the correct english word) and 3 different filters, but still sucks

Edit: I got some things going on, cant replay to all comments today and probbly tomorrow. Thank you all for input, Ill come back asap

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[โ€“] rambos@lemm.ee 1 points 8 months ago (1 children)

The simple way is to use a fan or blower limit switch

Is this temperature controlled? Im not sure if temperature would be best since appartment is 2 floors below me and air might cool down? I might be wrong.

Mass airflow sensor sounds like it should work. Ill research more

[โ€“] Nomecks@lemmy.ca 1 points 8 months ago

Fan limit switches are airspeed based, at least the ones I used. They're used to make sure things like furnace blowers are actually working, otherwise cut off the heat.