Skip to product information
1 of 18

Xtreme Heaters Large 800W XXXHEAT Heater

Xtreme Heaters Large 800W XXXHEAT Heater

SKU:XXXHEAT-800

Choose Option

Price: 

Sale price $469.00 USD Regular price
Regular price $469.00 USD

Sale

Sold out

Shipping calculated at checkout.
View full details

About this Heater

Xtreme Heaters bilge heater Suitable for most boats up to 35′ Length

The 800W Xtreme Heater is the ideal solution for boats up to 35 feet, including larger cruisers, day boats, runabouts, cuddy cabins, fishing vessels, house boats, and yachts. This large bilge heater is designed to effectively maintain above-freezing temperatures in your engine compartment, providing robust protection against cold weather.

With its powerful 800W output, this heater is perfect for larger vessels, offering reliable performance that ensures critical areas of your boat stay warm. Whether your boat is in the water or stored on a lift, the 800W Xtreme Heater is an essential tool in your winterization process. If your boat is stored on a lift or trailer, we recommend choosing a heater one size larger than the suggested model or a second heater for optimal performance.

  • IP68 Rated Heater 
  • Tested to U.S. Coast Ignition Protected standards 
  • Mil Spec tested (Military) for Vibration, Humidity, and High/Low temperatures
  • 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
  • 5-year warranty (best in the business)

As product and industry experts, our goal for the Xtreme Heater was to produce a highly safe, dependable, and efficient option on the market. With our heaters, you can confidently stay on the water for extended periods.

If your boat is docked on a lift or trailer, you may need to consider increasing the wattage of the heater up one level or adding a second heater to compensate for heat loss. Make sure to cover the fresh air vents to prevent air from escaping and the cold from coming in, resulting in a more efficient heater and saving you money.

SHOP SMALL HEATER HERE (Boats 24' Length)
SHOP MEDIUM HEATER HERE (Boats 28′ Length)

Owners manual click here 

Specifications

  • Wattage: 800W
  • BTU: 2729.7
  • Inrush (startup) current: 13.5A, 1 sec.
  • Typical operating current: 6.8A
  • Fan flow 58CFM
  • IP68 (Waterproof) rated Fan
  • MTBF for fan: 40,000
  • Heater Dimensions: 8″ x 3.5″ x 5 1/8″
  • Box packaged Dimensions 12″ x 6″ x 6″
  • Fuse or breaker size required 20A
  • 15ft marine rated power cord
  • UPC-895670001262

Suitable for boats up to 35′ Length

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

 

Because boats vary in materials, insulation, and design, it's essential to carefully assess your specific needs and climate to determine the most suitable heater. In some cases, depending on the size and configuration of your boat, more than one heater may be necessary to ensure adequate protection​​.

    Customer Reviews

    Based on 47 reviews
    94%
    (44)
    4%
    (2)
    2%
    (1)
    0%
    (0)
    0%
    (0)
    j
    jeffery howell (United States)
    Awesome

    Bought the 800 watt heater for a water well house heater, it has been awesome and saved my but once all ready when I thought it quit in freeze cold temps, but it was the breaker that I had it on that went bad instead, replaced the breaker in the panel and got the heater back on and it kept everything from freezing and busting during that whole ordeal and then ran non stop for probably 24 hours and never skipped a beat. Kept the non-insolated well house well above freezing just not warm enough to shut down for that 24 hours as everything had to thaw and warm back up, but never had a problem after all of that, 18° outside right now and 49° in the well house with a very cold wind chill of 7°. Customer service was the best I have seen in a long time, answered every question I had before I bought it and recommended what he thought I should get and gave explanations of why.

    j
    jesse medina (United States)
    cust support

    cust support was fantastic ! i had owned a previous unit they gave me a trade-in discount.
    their units are rock solid.

    G
    George Ames (United States)
    Poor customer service practices

    The heaters seem well built but the C S department is very forgetful

    R
    Robert Delve (United States)
    Great heater and service

    We received a new heater a few weeks ago and are using to keep our RV that is in storage safe. So far it’s working great! It’s wonderful how it turns on when needed and off when the temp gets to proper temp. So far so good!

    J
    John Lor (United States)

    2 x 800w extreme heaters, 1 heater in my engine bilge and 1 heater in my cabin which is open to wheelhouse on my 42’ northern bay. I’m seeing 40 degrees up to 55 degrees in both areas with 8 degrees weather conditions outside. She’s in the water for the winter.