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Heating solutions for
boats

Engine-independent cabin, engine and propulsion battery heating on sailboats, motorboats and yachts

Webasto diesel and electric heating systems for boats and yachts can be selected for different destinations, heating requirements and boat sizes. The air and water heaters and accessories have been specially developed for use on board. With heating outputs between 2 and 120 kW, there is a solution for every requirement. For retrofitting, please contact one of our installation partners in your area who specializes in boats.

Air heaters for boats

Our Air-Top models heat the air directly with a heating output of between 2 and 5.5 kW and blow it into the cabin at individually definable outlet points. To implement the ideal installation solution for the heater, the air outlets, the fresh air intake and the exhaust air, Webasto offers a wide range of stainless steel accessories. You can also combine two heaters if your heating requirements are greater. Webasto air heaters are extremely efficient and quiet. Thanks to their compact size, they do not take up much space on board. For operation, you can choose between the easy-to-understand, central MultiControl or the ThermoConnect app, which can be controlled from anywhere.

Key facts

  • Simple installation
  • Fast heating up
  • Reliable dehumidification of the cabin
Winter sunset on a yacht bow in the Baltic Sea with frost and warm cabin glow, showcasing Webasto Marine heating systems for reliable thermal comfort at sea.

Product overview marine air heaters

Water heaters for boats

Our water heaters come invarious sizes, from 5 to 120 kW heat output. They heat the water in a radiator system, which then heats the air in the various areas on board. It is also possible to integrate a boiler into the circuit to heat water. The advantages of water heating are very even heat and the option of preheating the engine. Some appliances can be integrated into a complete A/C system.

Key facts

  • Compact size
  • Diesel or HVO as fuel
  • Efficient and low emission
  • Very quiet
  • Many installation variants
HVH

Product overview marine water heaters

Integrated heat exchanger for boats

The HTX heat exchanger product line offers a wide range of installation options. With four heating output classes between 3.3 and 6.6 kW, as well as a wide range of accessories and installation kits, you can customize to fit your application need. Durable, highly efficient fans and blowers provide a strong and constant air flow, ensuring optimum air distribution. High-quality, automotive-grade components guarantee reliability and a long service life.

Key facts

  • Simple installation
  • Fast heating up
  • Reliable dehumidification of the cabin
Misty-sea sailboat on open water illustrating Webasto marine solutions, highlighting dependable thermal management and electrification for leisure boats.

Product overview marine integrated heat exchangers

Heating solutions for e-boats

For battery electric boats, Webasto offers extremely efficient high-voltage heaters (HVH) with heating outputs between 5 and 12 kW. With their clever stratified heating technology, the HVHs convert direct current into heat with virtually no loss. All models are ISO 21434-compliant, but differ in terms of voltage, communication interfaces and service life. Thanks to their extremely compact design, the HVHs require very little installation space. They can heat both the cabin and the drive batteries, thus increasing their service life and range.

Key facts

  • Efficient heating layer technology
  • Extremely compact design
  • No rare earths
  • Increases battery life and range
  • Flexible installation positions
  • Long service life between 12,000 and 25,000 operating hours
HVH

Product overview heaters for e-boats

Downloads

Marine - Catalog

Size
43 MB
Format
application/pdf
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