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Xtreme Heaters Medium 600W XXHEAT Boat Bilge & RV Heater

Xtreme Heaters Medium 600W XXHEAT Boat Bilge & RV Heater

Regular price $419.00 USD
Regular price $469.00 USD Sale price $419.00 USD
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 Xtreme bilge heater Suitable for boats up to 28′ Length and RV medium sized compartments 

SHOP SMALL HEATER HERE (24' Length and Small RV compartments )
SHOP LARGE HEATER HERE (35′ Length and RV large size compartments)

  • True Forced Air Heating circulates air more effectively and heats more evenly for more accurate climate control.
  • Automatic Thermostat turns the heater on at 40°F and off at 55°F +/-3° – the tightest tolerance available.
  • Failsafe Design cannot overheat. Heating technology is dynamic and self-regulating.
  • High-Efficiency Xtreme produces heat faster, circulates more air and shuts off earlier.
  • Pre-wired 15ft marine rated power cord with 110V 3 prong plug eases installation.
  • Maximum Life – Designed for durability and reliability.
  • Complete Protection: Fully anodized inside and out.
  • Small Footprint
  • Certified and Independently Tested now with the UL 1278 standard

Our mission in creating the Xtreme Heater was to build the safest, most reliable and efficient product available. Our heaters are the safe and easy answer to keeping you on the water longer.


  • Wattage: 600W
  • BTU: 2047.3
  • Inrush(startup) current 12A 1 sec.
  • Typical operating current is 5.5 A
  • Fan flow 58CFM
  • IP68 (Waterproof) rated Fan
  • Heater Dimensions: 8″ x 3.5″ x 5 1/8″
  • Box packaged Dimensions 12″ x 6″ x 6″
  • Fuse size required 15A
  • 15ft marine rated power cord
  • UPC-895670001255

Suitable for boats up to 28′ Length

Weight 5.0 lbs
Dimensions 8″ x 3.5″ x 5 1/8″



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    Customer Reviews

    Based on 36 reviews
    Mark Johnson
    Thank you

    Who is this HEATER no longer have to worry about freezing up in the RV. Thank you.

    Peter Segaloff
    The best design and safety

    Get two or three for a big boat. They work well.

    Has worked well through the winter so far

    Bought this to put in my bilge for the winter to keep the engine block warm during freezing weather. Has worked as advertised for past few months, keeps everything warm, seems safe. A little pricey, but from the research I did, you get what you pay for and I didn't want to be cheap when it came to putting a very hot device on my boat unsupervised.

    Just in the nick of time

    Our RV garage in winter is typically 47 degrees of above. We store our 21’ boat in garage and this year we did not winterize it assuming the temperature would remain above freezing. Prior to going on a weeks vacation I checked the garage temperature gave and it was at 35 degrees with the temperature dropping. I checked the boat’s engine compartment and the engine was right around 34 degrees. I wrapped the engine in a large blanket and put a floor radiant heater on the floor near the engine and outdrive area. My wife did a quick search on Amazon and we found this heater. Amazon delivered it in two days, just in time as the deep freeze hit. I set it up in a safe spot in the engine compartment and plugged it in. I disconnected the portable heater. OMG, the temperature in the engine compartment came up to 60 degrees in about 2 hours. I checked on it for the next two days prior to leaving on vacation and it was keeping the engine compartment at 55-60 degrees. The outside temperatures during the following two days were a low of 14 and high of 24. The heater did its job as designed. I just checked it after 1 week and the green light is back on and the heater off. The temperature in the engine compartment is a comfortable 60 degrees. Note, our temperatures in winter seldom get into the 20’s and usually are mid thirties and above. I would never have suspected our RV garage to dip as cold as it did. After living here since 2003, I was surprised at this extreme weather pattern. This product is excellent. It’s rugged, easy to set up and durable. I know this heater saved my boat engine from freezing. Money well spent.

    Works as Advertised

    I placed the unit inside the lithium battery compartment of a travel trailer. Placed a Bluetooth temperature tracking device (temp fi) and you can see the unit's on/off pattern maintaining the temperature within the advertised range.