I am looking to install 240v electric baseboard heaters which will be fed with 12-2 on 20 amp breakers. I did my amperage calculation 4000/240v = 16.6 amps. So with that said I can run all my heaters on one 20 amp breaker considering you are allowed 18 amps on a 20 amp breaker per IRC 2009 code.
1st question: However, does anyone know if there is code against feeding from one room to another (piggyback) my feed from the thermostat to the next room.
These heaters will be installed in 2 bedrooms, a bathroom and a walk in closet.
2nd question: Is GFCI circuit breakers required for these heaters? From what I gather from the IRC 2009 Code any equipment ran with 220v does not need GFCI breakers. Or am I wrong? Thank you in advance.