anyone had such? any good?
I see Kenlow have made an extra-clever one which runs the car heater as well, and costs even more.
gonna look into the concept of an immersion heater I reckon. fit it in a small tank made for the purpose, pumb into the engine side of the cooling system and bob's yer father's brother, I reckon. Stat it to about 80 degrees so it doesn't open the thermostat and try to heat up the world through the radiator, and Bob should be yer father's brother. Don;t really see as it needs a circulating pump, as convection/conduction should allow it to warm the engine nicely. Only real problem is getting a physically small one, as they're usually big long things.