Fan or Dimmer outlet that reports temperature too

[MarkTr]

@qoheleth.rms

You could combine a multi-sensor (Samsung or Aeotec make ones that measure ambient temperature) with a fan speed controller (GE makes a 3-speed one). I’ll echo JDR’s “do not use a dimmer” comment. You’d have to have a set of rules or something like webCoRE to program the interaction the the sensor and controller.

I would replace the existing switch (is it a standard wall switch?) with the GE fan control switch, place a device with temperature reporting in the space, and connect both of those through this SmartApp:

[OBSOLETE] 3 Speed Ceiling Fan Thermostat

[image]This smartapp uses any temperature input to control the High, Medium, Low speeds of a ceiling fan based on your desired room temperature setpoint turning on each speed automatically in 1 degree differential increments (adjustable). For example, if you set your desired room temperature setpoint at 72, the low speed comes on first at 73, the medium speed comes on at 74, the high speed comes on at 75. And vice versa on decreasing temperature until at 72 the ceiling fan turns off. A notable feature is when low speed is requested high speed is turned on briefly to overcome the startup load then low speed is engaged. This mimics the pull chain switches that most manufacturers use by always starting in high speed. There is a motion option so that the fan turns off automatic mode when no …

I use it (or the 4-speed variant for my Hampton Bay Wink controllers) for all our ceiling fans and it works great.

Pick a sensor whose other features you can use - for instance, if the fan is noisy and you want it to turn off when you enter the attic, use a contact sensor and have it turn off when you open the attic door / hatch. If you might need to run a dehumidifier, get a temp/humidity sensor. Etc.