Eberspächer (often referred to as Eberspacher) is a premium German manufacturer with a history dating back to 1865. They are a global leader in marine heating technology, known for high-performance diesel air and liquid heaters that are engineered to withstand the rigorous demands of saltwater and freshwater environments.
Eberspächer Marine Heating Solutions
Eberspächer heaters are favoured by boat owners who prioritise cutting-edge technology, longevity, and high efficiency. Their systems are divided into two main categories:
- Airtronic (Air Heaters): These provide rapid, forced-air heating directly to the cabin. They are known for their quiet operation and precise temperature control.
- Hydronic (Liquid Heaters): Systems like the Hydronic S3 D5 circulate heated coolant through radiators or matrix heaters. These can also be integrated with a calorifier to provide domestic hot water.
Eberspächer also offers advanced control interfaces, such as the EasyStart Web, which allows users to control their heating remotely via a smartphone app—ensuring your boat is warm and dry before you even step on board.
Professional Installation and Certification
As a complex forced-draft diesel appliance, an Eberspächer system requires expert installation to ensure safety and compliance with marine regulations. At Marine Heating Solutions, our engineers are OFTEC-trained and specialise in Eberspacher diesel heater installations. We focus on robust exhaust sealing and proper fuel system integration to prevent leaks and carbon monoxide risks.
Every installation includes a Boat Diesel & Oil Appliance Certificate, confirming that the work meets Boat Safety Scheme (BSS) standards. For technical support or to download user manuals, you can visit the official Eberspächer Support page or consult the OFTEC safety guide.
Eberspacher Diesel Liquid Heaters

Eberspächer Hydronic S3 D5: A premium 5kW diesel water heater. Features 3rd-generation stepless power control and a silent brushless motor. Ideal for radiators and domestic hot water on vessels up to 45ft.
Eberpacher Controllers

Eberspächer EasyStart Web: The ultimate remote control interface. Uses a pre-installed SIM to allow worldwide smartphone app or web browser control, ensuring your boat is warm before you arrive.

