Xtreme Engine Compartment Heaters are designed specifically to keep your engine space safely above freezing temperature, without wasting energy heating the space to unnecessary levels. Our fixed thermostat is factory-set to turn on the Xtreme Heater at 40° Fahrenheit (+/-3°) and off at 50°F, keeping your bilge space safely in the high 30’s to mid-’40s despite below-freezing temperatures outside.
