Compatibility Quick Check — Mysa for In-Floor Heating

Run through this before you buy. It takes a few minutes and confirms whether Mysa for In-Floor Heating can control your system.

You are likely compatible if

• Your floor heating is electric — a heating mat or heating cable, not a hot-water system

• The circuit is single-phase 120V, 208V, or 240V

• Your system wattage is within the limits below

• The circuit is not already GFCI-protected — Mysa has its own built-in GFCI

• The wiring is copper, not aluminum

• A floor sensor is installed, or you can route one into the heated floor

Maximum load by voltage

• 120V — up to 1,900W

• 208V single-phase — up to 3,328W (16A)

• 240V — up to 3,800W (15A)

Check the rating on the heating mat or cable label, the cold lead tag, the manufacturer documentation, or the label on the relay panel or junction box.

You are not compatible if

• The system is hydronic (hot water)

• The system is 24V or another low-voltage control

• It is a three-phase 208V system

• It is forced air, a heat pump, or gas or oil heating

• It is baseboard, convector, or fan-forced heating — use Mysa for Baseboards instead

• The wattage is above the limit for your voltage

For the full detail, see In-Floor Heating Compatibility Guide. Still not sure? Contact support@getmysa.com with your heating system voltage, wattage, and photos of the existing thermostat wiring.