I may sell this as an APU is possibly within my reach. It works extremely well in a D unit, but I think it would move plenty of heat in a van as well. I normally close the curtain halfway so some heat moves into the cab area. It probably uses .1 gal/fuel per night. I don't even notice it in my total fuel usage. Just a feeler at this point to see if someone would buy it... just used over two winters.