Originally Posted by murray59
Okay, I bought a Dimplex EF621C electric heater. It just has two grey wires at the back and a ground screw. It says it is 2kW maximum load and can be hooked up 240 or 208 volt supply. It's the 240/208 part that's got me confused. I plan to run a 14/2 to the electrical box and hook each wire to either side of a double 20amp breaker and have no neutral. That's 240v right? Am I on the right track? What's the 208v about?
240 is what you get between 2 legs of a single phase, typically residential utility distribution 120/240 volt transformer.
208 is what you'll most likely see between 2 phases of a 3 phase, typically commercial distribution 120/208 volt transformer.