Xtreme Heaters Large 800W XXXHEAT-Boat Bilge and RV Heater

Xtreme Heaters Large 800W XXXHEAT-Boat Bilge and RV Heater

XXXHEAT-800

$529.00 $469.00

Xtreme Heaters bilge heater Suitable for boats up to 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 boat heaters are the safe and easy answer to keeping you on the water longer.

Specifications

Wattage: 800W
BTU: 2729.7
Inrush (startup) current 14A, 1 sec.
Typical operating current is 6.5A
Fan flow 40CFM
Heater Dimensions: 8″ x 3.5″ x 5 1/8″
Box packaged Dimensions 12″ x 6″ x 6″
Fuse 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″

Going Strong Year after Year

I bought my heater over 10 years ago and it still works great. I originally bought it for my 40ft cruiser and it kept the bilge area from freezing. I always winterized just in case we lost power BT every time I checked it was working great. Mulch better for the batteries and everything down there.

Great product

Love my Extreme Heater. Two seasons in and works great.

Small but Powerful!

I live in Maryland and winter is never too bad. I bought two 600w heaters one for each engine. Last year I had the BS heater - but it was so big I could only put it on the far side of the bilge. I didn't feel good about the BS heater. But these xtreme heaters are so small I put a 600 w under each enginge. Its kept the bilge nice and toasty. Maybe a little overkill, but I like overkill.

Worth the Cost Compared to Other Bilge Heaters

The Xtreme Heater is definitely more expensive when compared to the other bilge heaters on the market but IT'S WORTH IT! This heater is truly built to last and down the very littlest details of the heater is built tough and is one of the only heaters that is truly waterproof. Why purchase anything else when this option is available.

Impressive Unit

I finally went with a bilge heater instead of winterizing - and thanks to the Xtreme Heater it went as smooth as it can go. It turns on when it needs to and keeps the temperature even in my engine compartment for my Mastercraft.

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Customer Reviews

Based on 96 reviews Write a review

Specifications

Wattage: 400W
BTU: 1365
Inrush (startup) current 8.2 A, 1 sec.
Typical operating current is 4. A
Fan flow 40CFM
Heater Dimensions: 5.75″ x 3.5″ x 5 1/8″
Box packaged Dimensions 10″ x 6″ x 6″
Fuse size required 15A
15ft marine rated power cord
UPC-895670001217

Suitable for boats up to 24′ Length

Weight	4 lbs
Dimensions	5.75″ x 3.5″ x 5 1/8″

Xtreme Heaters Small 400W XHEAT Boat Bilge and RV Heater

100% satisfied and well worth the investment.

Excellent performance for 11+ years! This is one reliable piece of kit. I monitor performance via a logging thermometer and even when it is negative 10 and fiercely windy the engine compartment has maintained 40 degrees Chaparral winters on a lift (out of the water) and the extremeheater handles the business. Bravo!

Confident with the Xtreme Heater

Over the past 16 years, I have used Xtreme heaters in my boats. First, for 14 years in a Silverton 43 Sportbridge and most recently in a Monterey 295SY. I have always felt confident that my engines & fresh water systems were safe during the winter. Great safe heater!

Works great for fire command truck

I've got a pair of heaters installed in the back of an F-150. Keeps all the fire/ems equipment unfrozen and ready for work as the truck has to stay outside.

They don't get too hot, they turn on automatically, what's not to love?

Excellent heater

I have a 23.5 ft Cobra performance boat with 496 HO. I always take it out of our boat house for the winter. My wife didn’t want our boat in the garage anymore for the winter. I did my homework and ordered this Extreme 400wt heater. It performed perfectly with temps as low as the mid 20s. Last week I cleaned and cranked over my 496 and no issues, all is good. If you’re looking for a reliable heater for the winter months, look no further, Extreme has your solution.

Excellent heater

I have a 23.5 ft Cobra performance boat with 496 HO. I always take it out of our boat house for the winter. My wife didn't want our boat in the garage anymore for the winter. I did my homework and ordered this Extreme 400wt heater. It performed perfectly with temps as low as the mid 20s. Last week I cleaned and cranked over my 496 and no issues, all is good. If you’re looking for a reliable heater for the winter months, look no further, Extreme has your solution.

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Xtreme Heaters Medium 600W XXHEAT Boat Bilge & RV Heater

XXHEAT-600

$469.00 $419.00

Xtreme bilge heater Suitable for boats up to 28′ Length and Rv medium sized 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.

Specifications

Wattage: 600W
BTU: 2047.3
Inrush(startup) current 12A 1 sec.
Typical operating current is 5.5 A
Fan flow 40 CFM
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″

Xtreme Heaters Medium 600W XXHEAT Boat Bilge & RV Heater

Top notch

My first winter with xtreme heater on my inboard which gave me a total sense of comfort on keeping my boat protected!

Survived the Boston Winter (negative 10 degrees)

I used the medium heater for a mid-sized (and moderately insulated) engine compartment, and it successfully kept the engine and components from freezing, even during -10 degree F cold snaps. Incredible! I did not want to winterize the engine and fresh water system and not be able to use the boat all winter, so this was a perfect solution. Very well built and reliable. Buy the mount too -- allows for easy removal for spring, or easier installation overall if you're leaving in in permanently.

Pro tip -- if your dock power isn't entirely reliable and you're using the unit as described (to protect an unwinterized engine), I would encourage the installation of a power or temperature monitor. For us, the combo of Victron Cerbo (with temp sensor), BMV 712 battery monitor and 4G LTE Modem (cheap IOT sim card) give us remote alarms when the dock power is lost. I haven't seen temps in the engine room below the mid 40's with the heater installed -- usually hovering at about 48 degrees F.

Many Ways to use the Heaters

I use my heater in my 1970 VW bus to get it to start up in the mornings. After I installed the Xtreme Heater in the engine compartemnt, the bus starts up every time.

Out on the water on Christmas! Beat that!

The xtreme heater has given me the ability to ride all year round with the confidence that my boat is protected from the elements. It successfully protected my Malibu Wakesetter VLX through historically low temperatures and one of the worst winters on record. I am convinced that the Xtreme Heater is the most cost-effective, reliable, safe, and easy to use product on the market.

No more FREEZE worries

It makes our life really easy and has protected our valuable investment!

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Xtreme Heaters Boat, Cabin, RV Heater XTRCAB Cabin Heater

XTRCAB

$139.99 $129.00

Small, quiet, portable heater for marine and RVs

Built-in overheat protection
“One Shot” secondary overheat protection
Two heat settings: 750/1500 Watts
Freeze prevention thermostat setting
Fan-only setting
Automatic thermostat
6 foot power cord
Color: white/black
UL Listed to UL 1278 standards

NOT FOR USE IN ENGINE SPACES OR OTHER AREAS THAT MAY CONTAIN EXPLOSIVE FUMES, WATER OR HIGH LEVELS OF MOISTURE (CONDENSING).

The Xtreme Boat and Cabin heater is designed to help keep your boat cabin, RV or other small space comfortable during the fall and winter months. This heater features quiet operation, a low profile and stable base that prevents tipping. Drawing air from the top, this heater can be placed up against walls, or on carpeted surfaces without blocking the air intake. The 1500 Watt heat setting will quickly warm your living space, while the 750 Watt setting will efficiently maintain comfortable temperatures. The 6 foot, power cord offers more flexibility for heater placement independent of outlet locations. UL listed UL1278