Ducted Marine Heating System HEATER SYSTEMS Using a quality ducted heater from Heater Craft makes good sense. We would all like to think that every time we use you're dreaming! The reality is quite different. A Heater Craft heater is guaranteed to extend your season and enhance your boating experience. The 300 - H is our largest, most powerful ducted unit. At 40,000 BTU/hr this heater is very popular in the tournament ski boat and aluminum jet boat industry. It's features a 3-speed double centrifugal double centrifugal blower drawing a maximum of 8.4 amps. Includes universal mounting bracket and detailed installation manual. Available as unit only or complete Tough powder-coated finish. 3 speed centrifugal blower. Constructed of marine grade 5052 aluminum. Available in unit only or complete kit. Heater Craft • 6672 Boekel Road, Rathdrum, ID 83858