this post was submitted on 18 May 2025
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Automating a window AC (lemmy.zip)
submitted 18 hours ago* (last edited 17 hours ago) by shortwavesurfer@lemmy.zip to c/homeassistant@lemmy.world
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So I have my AC connected to a smart plug and I'm trying to figure out what would be the best way to go about automating it.

Currently, I have it set to run every hour on the hour for 20 minutes if the time is between noon and 8 p.m. Which covers the hottest part of the day.

However, what I could do is have it run every other hour instead and have a couple of night runs along with the daytime runs.

Doing it that way would eliminate most of the 16-hour period currently that exists between the ending of one day and the beginning of the next.

Edit: Also, is there an easy way to automate every other hour using the time pattern or would I manually have to set up triggers for 2am, 4am, 6am, 8am, 10am, etc. using the fixed values?

Edit 2: looks like i can use "/2" to accomplish that

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[โ€“] HappyTimeHarry@lemm.ee 1 points 16 hours ago (1 children)

I used a cheap temp sensor to link the on of with the temperature further away in the room. Its more useful with space heaters it the winter.

Running it for 20 mins every hour during daytime is an interesting approach, id think it would be more effecive to do on 10 evey half hour but i suppose its really just a personal preference.

Have you done any measurements to see how effective it is 20mins every hour compares to every other hour?

[โ€“] shortwavesurfer@lemmy.zip 1 points 16 hours ago

Not yet. I'm thinking about modifying it, but haven't done so. Quite yet.