Land Rovers supplied me an engine block heater on my 1970 Land Rover 109”, six-cyl station wagon. It was invaluable when I was in Afghanistan, pre Russian invasion.
Later I bought a small electric immersion heater of about 500 watts as used in fire engines etc to keep machinery on standby.
I used it on 5 successive Range Rovers and it is now on the Disco.
It fits in-line in the bottom hose and I leave it plugged in all night.
It is simple, small and cheap.
Does anyone know where I can get another?
All I can find on the internet are elaborate, expensive, high powerd, motorised flash-heaters like Kenlowe which I think are overkill.
PS Looking for one or two 4x4's to join me on a Pyrenees off-road trip in May. Please contact for info.