[Engine] How long to warm up to temp?

[Gadgetman]

What is this 'warm' you're talking about?

Yes, I see the needle move up to 'normal working temp' on the gauge, and it even gets there in less than 10Km, but when I drove the 500Km home after visiting relatives this Chirstmas, I never felt that the cabin was warm.
1.4i is not a good choice for a Berlingo MultiSpace in -10 C or colder...

I'm beginning to hate the smug b*stards with AC...