How many watts can Mysa for In-Floor control?

Mysa In-Floor is tested and certified to control up to 3800 Watts at 240V. 

Voltage Maximum Wattage Frequency
120V 1900 W 60 Hz
240V 3800 W 60 Hz

 Exceeding 3800 watts can damage your thermostat, floor, and electrical heating matt. Exceeding the maximum wattage is not covered under warranty.