Yes, Mysa works with most In-ceiling Electric Radiant Heating Systems. Please ensure that the total wattage per thermostat is less than 3800 watts.
It is recommended to select the Radiat Mode in the Mysa app after setup.Click here to see how to enable Radiat Control in the Mysa app.
Warning: The Radiant Option in the Mysa app is only available on firmware version 1.4.2. Please allow 3 hours after install for the thermostat to update.