Just a quick tip, when the heater is out take the centre of the burner out if you can, turn the wick up so that it is just level with the top of its chanel and rub all the chared stuff off the top of the wick. It saves having to cut the wick with scissors therefore making the wick last longer. Another thing is that when you light the heater let it burn for 10 mins or so before you make the final adjustment to the flame. That way you stand less chance of a 'soot invasion'.
I well remember parasene heaters in my youth, shows my age doesn't it
