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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
Colorful winter sunset. A view from the yacht's deck to the bow. Sailboat at Sunset

Product overview marine air heaters

  • Air Top Evo 40/55 (Marine)

    The air heaters for yachts and larger boats. Depending on the air distribution, they heat the saloon and all cabins. Thanks to smart blower control and fuel pump, they are efficient in terms of power and fuel consumption.
    Air Top Evo 40/55  product picture on orange background Air Top Evo 40/55 header
  • Air Top 2000 STC (Marine)

    The "all-rounder" among air heaters with 2 kW heating power for small and medium-sized boats - compact, safe and extremely efficient in terms of fuel consumption.
    Air Top 2000 STC air heater product picture on orange background Air Top 2000 STC header

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 Sailboat in Polar Waters

Product overview marine water heaters

  • Thermo Top Evo / Thermo Pro 50 Eco (Marine)

    The compact water heaters heat with up to 5 kW. The heat reaches the various areas of the boat via radiators. The appliances also provide hot water in the shower and onboard kitchen.
    Thermo Top Evo / Thermo Pro 50 Eco product picture on orange background Thermo Top Evo / Thermo Pro 50 Eco header
  • Thermo Pro 90 / Thermo Pro 90 Chiller (Marine)

    With a heat output of 9 kW, this Webasto water heater provides even heat on board, which reaches various cabins via convectors or electrical fan blowers.
    Thermo Pro 90 product picture on orange background Thermo Pro 90 header
  • Thermo Top Pro 120/150 (Marine)

    The new generation of water heaters with up to 12 and 15 kW of heating power. Whether in long sailing or motor yachts - these heaters always reliably guarantee optimum warmth on board.
    Thermo Top Pro 120 / 150 product picture on orange background Thermo Top Pro 120/150 header

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
Solitude on the water, a sailboat sails through a misty sea Solitude on the water, a sailboat sails through a misty sea

Product overview marine integrated heat exchangers

  • Integrated heat exchangers HTX 3.3 - 6.6 kW

    The HTX series for camping and specialty vehicles as well as construction and agricultural machinery and boats is durable, highly efficient and maintenance-free. The appliances heat with the waste heat from the running engine.
    Product picture of Integrated Heat Exchanger HTX on blue background Integrated Heat Exchanger HTX header

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 Luxury Yacht Cruising

Product overview heaters for e-boats

  • 400 Volt High Voltage Heater

    HVH 50/70: The powerful electric High Voltage Heater (HVH) with up to 5 or 7 kW heating power, ideal for 400 Volt systems in electric cars, transporters and specialty vehicles.
    HVH 50/70 product picture on orange background HVH 50/70 header
  • 800 Volt High Voltage Heater

    HVH 100 Compact / HVH 100 Compact+ / HVH 120: The perfect heating system for large plug-in hybrids and electric vehicles, strong heating power, high efficiency and reliable safety.
    Product picture of HVH 100 Compact and HVH 120 on orange background HVH 800 Volt header

Downloads

Marine - Catalog

Size
72 MB
Format
application/pdf
Download

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Further vehicle solutions

  • Passenger cars

    Discover Webasto solutions for passenger cars: panoramic roofs, battery systems and parking heaters for more comfort and efficiency.
  • Light commercial vehicles

    Webasto heating and cooling solutions for vans: parking heaters, range extenders, high-voltage heaters, air conditioning systems and cargo cooling for vans.
  • Recreational vehicles

    Efficient heaters, rooftop air conditioners and refrigerators for motorhomes, caravans and camper vans – perfect for retrofitting and original equipment.
    RV camping by a fjord in Norway Motorhomes at Norwegian campsite
  • Bus

    Webasto offers heating, air conditioning and HEPA filter systems for coaches and buses - including electric buses - for a safe journey at all times.
    Two white buses traveling on the asphalt road in rural landscape at sunset with dramatic clouds                               Two white buses traveling on the asphalt road in rural landscape at sunset with dramatic clouds
  • Truck

    Webasto heaters and air conditioning systems for trucks: parking heaters, high-voltage heaters and air conditioning – for comfortable rest periods, fuel saving and cabin comfort in the truck.
    Modern logistics warehouse with blue semi-trailer truck unloading goods. Cargo storage facility exterior with bay gate. Sunset sky background. Shipping industry building, delivery, export business. Overview heating and cooling truck
  • Specialty vehicles

    Webasto offers heaters, air conditioning systems and HEPA filters for special vehicles such as ambulances, rescue vehicles, fire engines and other emergency vehicles.
    Air conditioning and filtering the air in emergency vehicles Air conditioning and filtering the air in emergency vehicles
  • Agricultural machinery

    Heaters and air conditioning systems for tractors and other agricultural machinery for comfortable working in any weather. Discover retrofit options now.
    blue new tractor with red harrow in the field against a cloudy sky, agricultural machinery work blue new tractor with red harrow in the field against a cloudy sky, agricultural machinery work
  • Construction machinery

    Efficient heating solutions, powerful air conditioning systems and modular battery systems for excavators, wheel loaders and electric construction machinery – ideal for any environment.
    Crane trucks in the construction of a bridge Crane trucks in the construction of a bridge
  • Marine

    Webasto offers heaters, air conditioning systems and roofs for sailboats, motorboats and yachts, individually configurable for every destination and boat size.
    A sailboat with a white hull and wooden decking on clear blue water. Aerial View of Sailboat
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