Hello, I've put this already in another section but hoping it gets more views here.

I've recently purchased a MK5 Fiesta Finesse with a 1.3 engine and I was wondering what the normal engine temp should be, like where it should be on the gauge, when I'm driving with the heater on full its normally only just above the black cold mark, but whenever I put the heater to the middle (Where the red and blue overlap) The gauge seems to go to the middle and maybe a bit higher, I've not turned it all the way to cold yet as I don't know as I dare lol, is this normal? As a few people I know with the same model Fiesta, their temp gauge seems to stay just above the black all the time.

Thanks in advance, 

Dayce