[Rolf S. Ask]

I like those pics....

It looks as they are the same type, but the one on the ambulance is a bit longer to reach over the roof on the body. And yes they look as they are a bit of at the bottom. But don't think they are.
Have not measurred the heater for you yet, been to bussy, but will do so one day.
Do you see the filler neck for the small extra tank?
Have one of them, but think they are hard to get..

Rolf