My wall heater died, I think because it's too small for the area. I'm thinking about buying Fahrenheat 3000 Watt Large Room Fan-Forced Wall Heater. The specs are:
240 Volts, 3000 Watts, 10,230 BTU/HR, 12.5 Amps
My living area is about 270 sq feet. My question is, how do I know my wiring...