At Otech we decided to invest in a new hot water system, to improve the situation subsea for our divers. The hot water system consist of diving suits specially adapted to the cold temperatures in the North Sea. With a double hot water system the two working divers are supported with up to 60l/min of hot water. This is controlled and monitored by the dive system via DIVESCAN and a temperature sensor. It is a safe and efficient way to keep the diver safe, comfortable, efficient at the same time as it reduces the risk of DCI. The material which this suit is built by is a foamed neoprene, it has a similar appearance to a wetsuit however works differently. The testing of this new system was successful and our divers where very satisfied with the result.