We've been lucky to have this at a location where we didn't have to worry about the electric bill. Now we're in an RV park where we will get billed for usage over a certain amount. Tomorrow we're smoking a nice boneless pork butt and I'm wondering if anyone has an idea of what kind of usage we'll see at 200 for 6 hrs? It's going to be in the low to mid 60's tomorrow - ambient. Should I worry?