1700 Series Water Heater120v20 GallonWith Engine Heat ExchangerThe 1700 Series water heater provides hot water for galley and shower. Dense foam insulation provides better and longer heat retention than traditional fiberglass. The tank itself is protected by a 75 PSI T P temperature and pressure relief valve. The cylindrical design of the tank enables it to withstand more pressure than a cube shaped tank.Heat exchanger models can be connected to the engine cooling system. This provides the added