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BUILT to be the BEST Period! American Owned
Boat bilge heater / Engine compartment heater, For most Boats up to 24' , Boat heater for winter storage, Freeze-protection heater, and Automatic thermostatically controlled
Better circulation, Load balancing, and Separate compartments
Boats up to 28', medium sized compartments , and small boats on a lift or trailer
Engine room and lazarette, Boats with a wide beam, and Added capacity and Better circulation
35-40' boats with twin engines and genset, Houseboats, and Large Compartments
Separate engine rooms, Boats with a wide beam, Engine room and lazarette, and Added capacity and circulation
Boat interior heating, Interior freeze protection, and RV Interior Heating
Install/Remove your heater without tools, Secures your Xtreme Heater in any position, Anodized aluminum construction, and For 250w/400w Xtreme Heater
Install/Remove heaters with no tools, Secures heater at any mounting position, Anodized aluminum construction, and For 600/800/1000w Xtreme Heater
Mounting plate for Xtreme heaters, Heater attaches with provided screws, Anodized aluminum construction, and Lifetime Warranty
Thermostat 50/65 F, Outdoor Enclosure Heating Solutions, Electronics cabinets , Backup Generators and Air Compressor enclosures, and ASSE 1060 Enclosures
Thermostat 50/65 F, Backflow Prevention Enclosures, Well Pump Houses and enclosures , Mobile work Trailers and Vans, and ASSE 1060 Enclosures
plug heaters into dock pedestal , use for power to tools , and Short power converting to 120v plus
plug heater to shore power adaptors , power tool with shore power , and Adapt shore power to 3 prong plug
Testing Heater
Testing heater , Simulate cold to trigger heater on , Freeze bubble gum , loosen stuck bolts and screws , and Rapidly Cool an Area to –60°F/–51°C
Thermostat 40/55 F, Backflow Prevention Enclosures, Well Pump Houses and enclosures , Mobile work Trailers and Vans, and ASSE 1060 Enclosures
Lifetime Service Guarantee
Easy to mount, works
in any orientation.
20 years of reliable
freeze protection
Exceeds Coast Guards, ABYC and Military Specification Rating
The system worked all winter flawlessly, it's a new concept in RV winterizing.The “5112 Dual Voltage / Dual Inverter - RV Lithium System” was designed by Mike Mas for larger RV’s and Bus Conversions to provide "off the grid" 50 amp service....
This year was the first year I bit the bullet and went with a bilge heater instead of winterization. I'd always been worried about power reliability during winter storms, but recently moved to a brand-new dock and felt much more comfortable that...
"I bought a XXXHEAT Xtreme heater a couple of weeks ago after speaking with you. It’s mounted in the engine compartment of my 2017 Rinker 370EX, 37 foot with twin Mercruisers 8.2L, located on Old Hickory Lake in the Nashville, TN area.This is...
I have used 2 Xtreme Heaters L in our 2007 Sea Ray 320 Sundancer for the past 12 years. I have never had an issue with freeze up and in fact for the most part they have maintained our bilge around 40-45...
I bought the XXHEAT for my 24' Chaparral Sunseta on Lake Lanier so I could take the boat out on great days in the winter. No need to winterize. The heater works great. Just cover the vents and plug it in.
This is a research plane that uses Xtreme Heaters to help protect the electronics. The attached photos show the installation of a XHEAT (Small) heater in the Twin Otter aircraft. The first picture points out the location of the heater in the...
Dear Xtreme Heaters, As a newcomer to Georgia from Florida, I had to learn about preparing for freezing temperatures here in the winter. The good news is that I learned the easy way! Indeed, I was fortunate that my knowledgeable local boating...
Your heater worked great in the boat, and is now working great in my truck. I was skeptical about it only using $0.02/ hour, so to make sure that it came on each night in the boat and to see how much...
If you look closely you can even see the La Cross Temperature Transmitters in several of the pictures. They are hidden in plastic shoe boxes in the water filter bay and some other storage bins to keep them dry. I mounted the heaters...
Here are some pics of my technique to protect my Windmill palms: Burlap, heating tape, recycled mulch pad ,light through cloth covers and your Xtreme Heaters! Thanks, will report back in the spring! - R.Wilson
The heaters worked so well in my boat, I decided to add them to my SeaDo and Wave Runner. Thanks for a great product that really does what what you say it does.
Living high in the mountains of Colorado, the weather gets very cold at times, making it hard for my 1970 VW Bus to start up in the mornings. After I installed the Xtreme Heater in the engine compartment, the Bus starts up...
I have used a heater for a long time and never had a problem. I also used to use a Xtreme heater in my well house which was more reliable than a light bulb – RBR2328, offshoreonly.com
Attached are two photos of your Small, XHEAT Xtreme heater installed in the wet bay of my motorhome. The heaters’ compact size, built in thermostat and unbelievable qualities make it the perfect fit for the area. Meeting all the ABYC requirements (Boating Safety Standards)...
If you look closely you can even see the La Cross Temperature Transmitters in several of the pictures. They are hidden in plastic shoe boxes in the water filter bay and some other storage bins to keep them dry. I mounted the heaters...
My wife and I live in Lake Tahoe CA and own a van that we up-fitted for adventures (e.g. toy hauler with a water system, lithium batteries for power, the works). We had a dilemma because we did not want to winterize our...
Special Boat Team 22 began its history as Coastal River Divison-22 in 1972 in New Orleans La. In 1979 it became Special Boat Unit – 22. The Team’s long history in Riverine warfare is distinguished in Counter-Narcotic Operations in Central and South...
For approximately 40 years, EMS and Rescue personnel of Chowan County Emergency Services have responded to water search, rescue and recovery missions along the Chowan River and Albemarle Sound of Northeastern North Carolina. Our primary mission is the protection of life and...
Philadelphia Police Department Uses Xtreme – stationed on the US Coast Guard Base in Philly.
Safe boat international uses Xtreme Heaters to keep the work style boats protected from the cold – including our Fire Rescue boats, Police Boats, Special ops river boats, and Jet boats.
Dear Steve, After searching for a heater that would keep our 27′ Boston Whaler Vigilant patrol/rescue boat in-service year-round we found your Xtreme Heaters fit that need perfectly. We purchased the XXHeat 600 watt heater to keep our generator, battery bank and...
My name is Lt. Joe Crowshaw; I work for the City of East Providence Fire Department (EPFD) in Rhode Island. For three years, I have worked with a small group of firefighters from three other cities whose job it was to specify...
Steve: Here are the pictures I promised to you. The skis are stored at Pickwick Lake about 100 miles away from my home in Memphis, TN. I just stopped by the storage facility on my way home from Nashville to check on...
The heaters worked so well in my boat, I decided to add them to my SeaDo and Wave Runner. Thanks for a great product that really does what what you say it does.
This Bayfield 25 sloop is located in the Chesapeake area. Engine compartment space is always at a premium on sailing vessels. The only location this owner found involved mounting his Xtreme Heater upside-down. While we suggest mounting our heaters lower in the...
Greetings, Some photos for you. We have lived on Westsail 32, at Saugatuck Yacht Services, Saugatuck, Michigan for the past five winters. The Kalamazoo River freezes hard in January and I keep one P500 Ice Eater, on the stern, to keep the...
Steve, Everything went fine. I installed heaters on the boat yesterday. Once again, I want to thank you for your help. It is nice to know that someone still believes in customer service. – Ron
Everything went fine. Once again I want to thank you for your help. It is nice to know that some still believes in customer service. – Ron
The Xtreme Heaters work great as a backup to our houseboat furnace to keep water pipes, pumps, and holding tanks safe.
Steve, Everything went fine. I installed heaters on the boat yesterday. Once again, I want to thank you for your help. It is nice to know that someone still believes in customer service. – Ron
I have relied on XTreme heaters over the years and continue to see how well they perform on both our larger houseboat and bow rider. Being in GA we don’t have the constant concerns with freezing temps but during extended cold waves...
Just came back from my boat on Long Island, New York; its Feb 14. Outside temperature is 4 degrees boat is water with water temp. Of 34 degrees. Have two Xtreme heaters one in engine room and one in aft compartment –...
Xtreme Heaters – The Only Choice for Me! - Chris Murphy25 Yrs. Marine Industry Professional370 Sundancer – “Turtle Time”
These heaters made a big difference for us. Put two in the engine compartment and have not had to winterize the boat and am ready to go at the drop of a hat…well worth the money.. Supposed to be 25 degrees tonight...
I am 55 years old and have been boating all of my life. For the past nine years my baby has been a 1976 Trojan F36. Being in the southeast you never really know what kind of weather Mother Nature is gonna...
I looked at several brands of heaters and sizes. On the boat I just purchased was a competitive model, but I wasn’t sure if it worked. When I went to competitive website the model shown how to test was not the same....
I am in the cold chain monitoring business for commercial trailer and warehouse temp monitoring. With these temps, I am always comforted to get alarms if bilge temperatures drop. I was getting little anxious not seeing a heat rise till last night...
After Hurricane Sandy hit the Jersey shore in October 2012, it destroyed my marina where I keep my 28′ Carolina Classic docked. The day before the hurricane, I relocated my boat to a safer private dock up-river and rode the storm out...
I wanted to protect my boat from the weather in North Atlanta. I have been looking at the Xtreme Bilge Heater for a couple of years, wish I would have purchased one sooner, looking forward to boating in January and February. Gerald...
I purchased the Xtreme Heater XXX-Heat. It was easy to install. I tested the Heater before installation and it works great. H. SmithEatonton, GA
I installed a pair of your heaters in my 1979 Bertram 31 two years ago. They extended our fishing season by months! I love them! Since then Reelapse has been completely remanufactured from her keel up. Leave no doubt, as part of...
The Xtreme website is awesome ! If you can’t find the information you need, you can always call Steve. They were easy to install and think they will certainly serve their purpose so we get to use our boat throughout the winter...
We purchased a new boat and specified that an Xtreme heater be installed in the engine compartment to protect the single Volvo Penta D6-370 hp diesel engine and other installed equipment. It protected the boat for the entire winter in Vancouver, BC,...
In 2006 we moved our boat from GA to Knoxville, TN where we definitely needed to purchase a bilge/engine compartment heater. After doing my reaearch I chose to purchase a XTREME Heater model 300 (small). It has out performed All any Expections!...
Winter is approaching and I want to share with you how much my “Xtreme Heater” saved my boat during 2010 winter cold snap here in Georgia. I keep my boat on the lake year round and for the first time in seven...
I have invested a great deal of time and resources in my twin engine Formula PC 27 and I did not want to worry about cold weather problems in the engine compartment. After carefully researching the options, I purchased the mid-size Xtreme...
I would like to thank you and Xtreme Heaters for the exceptional customer service I received on the XXX heater I recently purchased from a local boat store. I contacted you with what I thought was a simple question about the heater...
My 33′ Sea Ray Sundancer has limited work area in the bilge and I do not want to always step over a heater when trying to work in small spaces. The Xtreme Heater has a small footprint and comes with a long...
I recently purchased one of your heaters for my 32′ Tiara and although reasonably pleased, I had some concerns about the operation of the heater. When I called your company number, I was pleasantly surprised to find that I was speaking to...
Hi Steve, It’s January in Maryland and my wife and I just took the boat to Baltimore’s Inner Harbor for the weekend. I think we were the only ones out except for the commercial traffic. What a treat! I just had a...
At Xtreme Heaters, our mission is to build the safest, most reliable, and efficient freeze protection on the market. Our heaters are designed to give you peace of mind by keeping your engines and equipment safe from freeze damage, so you can enjoy more time on the water.
Whether you’re a boat owner, RV enthusiast, or rely on our products for industrial or military use, Xtreme Heaters is the trusted choice. With two decades of proven performance, we’ve earned our reputation for delivering dependable, high-quality protection that keeps your equipment running smoothly. Simply put, our heaters are the best solution for anyone looking to extend their season and avoid costly repairs.