Engine Compartment / Bilge Heater - Xtreme Heaters

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Bilge heaters built with new technology makes Xtreme the smart choice for the serious boater. Xtreme forced air heaters are small, highly efficient marine engine compartment heaters that will protect your boat from the threat of sudden freezes for a never-ending boating season. Our boat heaters help to extend battery life and also keeps your engine compartment and it's critical components warm and dry. Compact size is designed to fit easily in any size boat. Never winterize your boat again!

  • True Forced Air Heating: Unlike other "radiator" style heaters that use convection, that leave cold areas in the engine compartment, an Xtreme Heater circulates air more effectively and heats more evenly for more accurate climate control. This forced air system assures more consistent and accurate temperature control.
  • Automatic Thermostat Control: Xtreme Engine Compartment Heaters turn on at 40 degrees F and off at 55 degrees F with a +/- tolerance of 3 degrees. This is the tightest tolerance for any bilge heater available. Other heaters have a 5 degree tolerance range which results in an inaccurate reading and inconsistent temperature control.
  • PTC (Positive Temperature Coefficient): The PTC heating element means that as the heater reaches its design operating temperature, electrical consumption is automatically decreased. This means they are incapable of overheating.
  • Pre Wired: A 20 ft. marine rated power cord with 110V 3 prong plus for easy installation.
  • High Energy Efficiency: Faster heat rate which circulated more air and shuts off earlier. Less run time means less out of pocket money.
  • Easy Installation / Removal: Quick release brackets make removal and re-installation of the heaters quick and easy.
  • Two Year Warranty: Proven dependability and superior reliability means an increased warranty and lifetime support for service.
  • Certified and Independently Tested to Meet the following: US Coast Guard Ignition Protection Stds, Transport Canada Ignition Protection Stds, ABYC E-11, SEA J1171, ISO 8846, MIL-SPEC 810E


Download Owners Manual

Model Specifications


 XTREME Heater 300

  • BTU: 1023 - 1790
  • Cubic Ft: 180
  • Wattage: 300-525+
  • Exit Air Temp: 167

XTREME Heater 450

  •  BTU: 1535-2130
  • Cubic Ft: 350
  • Wattage: 450-625+
  • Exit Air Temp: 203

XTREME Heater 600

  •  BTU: 2050 to 2725
  • Cubic Ft: 675
  • Wattage: 600-800+
  • Exit Air Temp: 245
xtreme heaters

Just How Tough are Xtreme Heaters? (Video)

Xtreme Heaters are run through a rigorous test and passes with flying colors. ... read more
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Please be aware that all products have a production or warehouse lead time. This is the number of business days (typically not including the day the product was ordered) that must pass before the item begins the shipping process. Please see the "Ships: In" information located within the main product description to the right of the product image and below the ADD TO CART button for that particular product's "Ships: In" timeframe.

IMPORTANT: Please note that these timeframes are estimates only based on the latest information provided to us by the manufacturer/supplier. Delays in both material, production and shipping timeframes by manufacturers can vary without advanced notice and while we do our best to keep "Ships: In" timeframes up to date we may not always be able to do so due to a variety of factors.

If a product is needed by a specific date we strongly recommend you reach out to our Sales team (1-800-869-1686) to verify shipping timeframes.

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