I have a ceiling mounted 240V 30A heater that is currently controlled by its built-in thermostat. The heater is in a workshop (in an out building). The heater is wired using three wires (two hot and a ground).
I'd like to be able to add a countdown timer so that I won't have to worry about forgetting to turn the heater off when I leave the workshop. Maybe, one that could be set for up to an hour.
Thanks in advance for any help you might offer.