ST840
Well-Known Member
Thanks for the suggestion but I have an outboard engine!! Next ......?Connect this up to the engine plumbing. 4.3kW heat output. If it doesn't demist your windows with adapted venting, not much else will.
Heater
http://www.carbuildersolutions.com/uk/all-in-one-compact-car-heater-with-vents-and-valve
Venting
http://www.defenderdemister.com/demister/