During recent renovations, we had to move our existing thermostat. Instead of replacing it with the same dumb 2-wire knob (white/red), I'd like to get a smart thermostat like the ecobee3. All of these new thermostats require a C-line, yet my heater does not have one currently. Can I add one to it?
Lastly, if it is possible to add a C-wire to this board, is it something a licensed electrician would need to do, or is it safe for a tinkerer like myself to do?