Get the electrician to put amp probe on feeders to heating unit run at max heat that will give you amp total max draw.i been electrician for 45 plus years.your electrician is not very skilled he can determine draw by the method I described.
the 4 h came out got rid of our bamboo .injected roundup in to the base of the stalks with syringe.free program by county .they been gone for a couple of years now