Choosing the Best Boat Engine Compartment Heater for You

Xtreme Heater Options:

An Xtreme boat engine compartment heater comes in three sizes for flexibility. In addition, multiple Xtreme Heaters can be combined to protect larger spaces or tighter engine compartments with poor circulation.

XHEAT (Small)

XXHEAT (Medium)






Heater Size

6″ x 4″ x 5 1/8″

8″ x 4″ x 5 1/8″

8″ x 4″ x 5 1/8″

Approx Boat Size

<= 21’



Boat Types

Ski/Wake Boats,
Deck Boats

Runabout Boats,
“Pocket” Cruisers

Larger Cruisers,
Multiple Engines,
Large Engine Spaces*

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XHEAT ($350)

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XXHEAT ($400)


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XXXHEAT ($450)

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230V Option:


Not Available


Not Available

230V option

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*Heaters can be combined for specific needs or large compartment spaces.

Need more information? Learn more about boat engine compartment size and other factors that can affect your boat engine compartment heater selection. Or Contact us to speak to an Xtreme Heater Specialist to help you determine the best choice for your boat.