Xtreme Heaters Boat Engine Compartment Heater | Large 800w Bilge Heater - For Boats Up To 35 | Boat Heater, Well House Heater, Camper/RV Heater, & Marine Heater - Safe Self Regulating Bilge Heater

First winter with it. Seems to work fine.

Surprised at how small it is. Runs quiet and noticed that the salon floors dont have a cold draft now. Nice long cord.

The 300w extreme heater is solidly constructed and has a very substantial cord (glad I didnt need an extension cord to reach an outlet). This is a perfect size for my Mastercraft Prostar 190. Winterization can cost several hundreds of dollars and boat storage fees also add up over time. I calculate that this heater will pay for itself in the first year and allow me to keep my boat on the water throughout our mild Southern winters. I wanted this heater to extend my season for the unseasonably warm fall days and allow me to take cruises in the early spring as well. Now I dont have to worry about the block cracking during a freeze because I know that this heater will keep everything warm. Very glad I purchased this product. My only regret is that I didnt order one sooner. Happy boating.

Looks like a great product.

Works great

I have mounted it on the underside of the engine space hatch cover. I tested it as the instructions say by putting it in my freezer for an hour, then taking it out and plugging it in. It turned on as it should then after a warming up period turned off. It ran pretty quietly with a gentle heated air flow in a way I don’t think will blow a breaker. Be sure to close off any vents or other ways outside air can get in and warm air out.

Just got this so cant give a full review but my husband loves the fact that we can extend our boating season. Will know more after winter.

Makes me more comfortable and the winter knowing that my engine room is protected it from freezing. It appears as though the colder it gets outside but warmer this heater warms up that space. I love this product. 3300 Tiara Yacht owner.

Just got around to putting my boat back into the water and have absolutely no problems. The heater obviously did its job in preventing freeze damage during the final couple of cold spells in early spring. Will use it again in the late fall when the weather turns cold again. Although I will continue to winterize my boat during the winter, (in case of power failure during a snow/ice storm) this is a great way to extend your boating season.

1st impression when unboxing -- man, this thing is built tough! And that continues to be my impression after utilizing it through this mild winter. Now the hard part of reviewing its operation. I utilized it in my boats small cabin throughout the winter since I cant use it in my small bilge due to power cord routing problems (I would pinch the power cord after placing it in my bilge and closing the bilge hatch. SO using it in the cabin area? Well lo and behold we had a relatively mild winter and I noted that the water temperature (and thus the cabin for the most part) never really got below 43 degrees F that I know of. The heater did kick on the few times I was there long enough to observe. But it didnt seem to run for any length of time, and certainly didnt kick-on long enough to attempt to bring the temperature up to 55 degrees F. That part is a bit perplexing to me since I would think that even with testing (using a refrigerant spray) to bring the temperature down you would think it would continue to run until it brought the 43 degree surrounding temp up to 55 degrees. But it never did that, it would run for a short time (even with strong 43 degree air circulation in the area) and then shut off. Again, it may be because of the warm winter. Even though most of my bilge area is below the waterline, thus remaining at the seawater temperature for the most part, I do plan on mounting this permanently (with the quick latch) in the bilge area and running the wiring to a gunwale receptacle so that shore power can be plugged into it directly (no wires through hatches). That way I can set it and forget an only run the shore power to that receptacle in the winter. Ill also look at mounting it high in the bilge compartment since that is the area that will be most influenced by the above the waterline temperatures of the outside air vice the surrounding water temperature.