In collaboration with East Sussex Fire and Rescue Service with have started looking at the physiological strain of new recruits during their initial 2 week BA course. New recruits will not have experienced fire, had limited PPE use and are likely to be anxious about the training. Subsequently, their heat tolerance is likely to be considerably worse than a standard fire fighter or instructor. It is importnat to consider the acute cost of doing a single hot wear and the long term consequence of wearing 10 times over the 2 weeks of training