Auxiliary heating / air conditioning

Parking heaters & air conditioning systems for boats

Parking heaters and air conditioning systems ensure a pleasant on-board climate on boats in all weathers. While parking heaters heat cabins independently of the engine, boat air conditioning systems regulate the temperature and humidity on warm days. Modern marine air conditioning technology improves comfort, reduces condensation and enables longer stays on board.


Autoterm Air 4D - Marine parking heater 12 V - Diesel 4 KW
Autoterm Air 4D - Marine parking heater 12 V - Diesel 4 KW
article nr.09723

Marine kit for use in boats and yachts. Mounting accessories as well as pipes, clamps, onboard passage and seal are included

  • Low fuel consumption and low noise level for maximum comfort
  • 862,24 EUR
    incl. 19% VAT
    Lieferung Fri 07. Aug - Tue 11. Aug 2026 **
    24 months statutory warranty
    Displaying 1 to 1 (of 1 products)
    • Over 15 years’ experience in the marine spare parts trade
      Over 15 years’ experience in the marine spare parts trade
    • Official Mercury & MerCruiser dealer
      Official Mercury & MerCruiser dealer
    • A wide range of boat engine spare parts from A to Z
      A wide range of boat engine spare parts from A to Z
    • Spare parts for Volvo Penta, MerCruiser, Yamaha, Honda, Suzuki and more
      Spare parts for Volvo Penta, MerCruiser, Yamaha, Honda, Suzuki and more
    • Fast delivery for maintenance, servicing and repairs
      Fast delivery for maintenance, servicing and repairs
    • Order boat spare parts conveniently online 24/7
      Order boat spare parts conveniently online 24/7

    Parking heaters and air conditioning systems for boats

    Auxiliary heaters and air conditioning systems are part of the central comfort and air conditioning technology of modern boats. They regulate the temperature and humidity in cabins and recreation areas and ensure a pleasant on-board climate in both cold and hot weather conditions. Special marine systems have been developed for use on boats and work reliably under maritime conditions.

    Parking heaters for boats

    Parking heaters for boats generate heat independently of engine operation and are often powered by diesel from the boat's tank. The heat generated is distributed to the cabins via air ducts or a water system. These systems heat up interior spaces quickly and reduce humidity in the cabin at the same time.

    Typical features:

    • Engine-independent heating function

    • Rapid temperature build-up in the cabin

    • Dehumidification and condensation reduction

    • Low fuel and power consumption

    • Suitable for sailboats, motorboats and yachts

    Boat air conditioning systems

    Air conditioning systems for boats provide pleasant cooling in the interior when outside temperatures are high. Modern systems can air-condition individual cabins or several areas of a boat and sometimes also take over heating functions.

    Different systems are used depending on the type of boat:

    • compact self-contained air conditioning units

    • Split air conditioning systems

    • Chiller or central cooling systems for larger yachts

    These systems not only regulate the temperature, but also the humidity, thus improving the indoor climate on board.

    Combined heating and air conditioning systems

    Many boats use a combination of auxiliary heating and air conditioning. These systems provide a stable on-board climate all year round and can often be expanded on a modular basis. On larger boats in particular, several cabins can be individually temperature-controlled.

    Selection criteria for boat heating and air conditioning

    Various technical factors should be taken into account when selecting a suitable system:

    • Size and layout of the boat

    • Heating or cooling capacity of the system

    • Energy supply (diesel, electricity or hybrid solutions)

    • Noise level and efficiency

    • Installation and maintenance costs

    The right combination of heating and cooling technology ensures comfort, reduces humidity and enables longer stays on board - regardless of the weather and season.