How to control 1500w baseboard heater?

I have a 1500w portable baseboard heater than can plug into a regular outlet. Would the GE/Jasco outdoor module be able to control this or is the heater too powerful? The module says it supports 600w (incandescent) or 15 amps, 1800w (resistive). Not sure which category the heater falls under.

It should work: 15 amps, 1800w is the part that applies.