XTREME Heater 600Bilge heaters built with new technology makes Xtreme the smart choice for the serious boaterBTU: 2050 to 2725Cubic Ft: 675Wattage: 600-800+Exit Air Temp: 245The core of the XtremeHeater is a heating element that is self-regulated at a preset temperature and automatically varies its wattage in order to maintain that preset temperature. What this means is that the heater will increase power and heat as it get colder to maintain the same temperature. The adaptability to outside temperatures also means less power consumed over the heating period. the XtremeHeater is engineered to be fail safe and reliable with no sparks so that it is safe for marine use. All components were engineered specifically for the XtremeHeater to keep your boat safe and in optimal condition.Features: