Hi , I have a little problem in finding a good place to fit my water
heater; although it's only small (20l) I'm finding it hard to fit it
in without most of it being above the engine level.
So filling the coolant in the engine and heating pipes is going to be
difficult as the coolant will not want to run uphill to fill the
heaters heat exchanger.
Is there any way to overcome this problem??
If I really have to, I have two spaces only it can go, but I'm very
reluctant to fit it there as it will reduce the size of my freshwater
tanks or end up being about 8 feet from the engine, which will reduce
the effectiveness of the unit - not to mention loss of more important
storage space.

Ta very much,

Pete