this post was submitted on 22 Dec 2025
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Looking for garage heater, US, 240v, 5000w (lemmy.world)
submitted 1 week ago by AA5B@lemmy.world to c/homeassistant@lemmy.world
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Can anyone help with pointers for automatable garage heaters? So far my searches aren’t finding anything. My requirements are:

  • remotely preheat when I want to work out
  • alert if it’s left on, or automatically turn off

I’m in the US, looking for 240v maybe 5,000w electric heater. The basic item is cheap and readily available at home centers or online. I even see variations with Bluetooth remote and/or controlled by app.

I’m looking for something locally automatable. Matter/Thread would be ideal but I’m fine with Zigbee or z-wave. But I’m not finding anything like that, and getting stuck on some vendors portal is not ok. Any leads?

Or something that can use an external thermostat - I actually have an extra Ecobee - that can be locally automatable. Any leads? Any search tips that might find such a thing?

I briefly thought of automating an outlet, however even if smart outlets are available for those loads, that wouldn’t work because all these heaters have a safety feature to run the fan until the unit is cool

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[–] AA5B@lemmy.world 2 points 1 week ago* (last edited 1 week ago) (1 children)

For sure on the safety, and this is one of the reasons I’m going for something intended for purpose, rather than portable space heaters. The other reason is power. Basically I want to ensure the heater is Always off unless I want to work out, but that also means sufficient power to heat the garage quickly in the coldest months

Something mounted on wall or ceiling is a critical safety feature, so it can’t get knocked over nor anything fall on it. There will never be anything flammable in my garage: it’s too small for cars and I converted to battery lawn equipment

I even see heaters with automatic 2 hr shutoff, but not automatable. That’s probably my backup plan

Realistically my priority goal is alerting and shutoff: remote pre-heat would be a bonus

[–] CmdrShepard49@sh.itjust.works 1 points 1 week ago* (last edited 1 week ago) (1 children)

Just as a backup you might consider putting some atandalone zigbee/z wave temp sensor in the garage just as a double check that the heater is operating as it should

[–] AA5B@lemmy.world 1 points 1 week ago

For sure, and it’ll be a nice addition to my house data. I like seeing data even when I have no practical use and already graph 5 different temperature sensors!