The heater has an air intake for the gas burner ,and an exhaust,running to the outside of the van.Further ducts will suck air in from the living area,and pump it out hot
The gas tank has a filler hose going through the floor,and attached to the skirt of the van outside
Whether this combination of a gas tank,and a gas /electric heater under my bed will be an explosive mixture,time will tell !
Wires go everywhere!-all labelled for future connection.
The LPG filler point is beneath the sliding door-satisfactorily invisible!