Originally Posted by joedadog
Sorry, the heater is 2000 watts and 8.3 amps. 12 should be fine. I was more questioning the romex to single wire connection and the conduit size. Is that part ok. Also sounds like I should go with metal conduit.
If you use emt then you need to use raintight fittings. PVC is fine, it just sags easily and looks bad if not supported well.
and yes, as SD515 states, use THW
N. Most current thhn wire is dual rated as thwn also but it must say so on the wire.
Your proposed installation sounds fine from what I read.