This is just a short vid showing people how to get their combi boiler going in an emergency where no boiler engineer is available and you are completely stuck with no heat at all. This is very easy to do, but Do not attempt this unless you are confident in your ability and methodically clean. I repeat, do not do this unless you are stuck, or as in my case my fathers house was freezing and could get no engineer. If you do this its at your own risk and nothing to do with me.