We went camping this past weekend for the first time in our new 5th wheel. It was a little cold outside. Ran the furnace and it seemed a little loud. My question is...if I am hooked up with 30amp can I run a small oil filled radiator. Like the $60 ?ones that you can buy anywhere. I use one in my office at home and it heats a 15' X 12' room great. Another question...if I plug an adaptor into my pig tail so I can hook up to a standard 110v heavy duty (orange cord) extension cord at home...is it alright to leave it plugged in all the time? What about lightning? What can I safely operate in the 5er with it hooked up like that? I guess I am just trying not to tax my electrical or burn the thing up. Any advice is greatly appreciated. I have found this forum to be a huge help and wealth of knowledge. Thanks to all.