Bongo Fury

Mine switches over at 40 degrees and so far has worked perfectly in the freezing temperatures. In theory, the vaporiser takes care of heating the gas so once that is up to the right temp, it should just switch over and work regardless of the ambient temperature.

Maybe my coolant / vaporiser warms up quicker in the summer than in the winter ..

It'll switch over quicker in the summer, but the temperature that it switches will be the same. I guess it's like boiling a kettle when you've still got warm water in it: the boiling point will still be 100 degrees .

I notice that there is a temperature sensor on my vaporiser.
I wonder if this is the setting he had to tweak rather than the engine sensor