Efficient 5kW Water Heating for Marine Comfort.
HYDRONIC S3 D5E
Upgrade your vessel with the Eberspacher Hydronic S3 D5E, the industry-leading 5kW solution for total onboard climate control. Unlike older heaters, this intelligent system uses "stepless" modulation to adjust heat output precisely between 1.3kW and 5kW. This eliminates noisy "stop-start" cycles, ensuring near-silent operation that lets you sleep soundly at anchor.
Beyond just warm air, the S3 integrates with your coolant system and calorifier to provide continuous domestic hot water for showers and the galley. Featuring a brushless fan for a 3,000-hour service life and automatic engine pre-heating to reduce wear, it is the ultimate investment for long-term cruising comfort.
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Compact 5kW Water Heating: All-in-One Efficiency
HYDRONIC D5WSC
Solve the challenge of tight marine engine rooms with the Eberspacher Hydronic D5WSC, the definitive "Compact" 5kW heating solution. Unlike modular systems that require mounting external components, this unit features internally integrated fuel metering and water pumps, significantly reducing the installation footprint and wiring complexity.
Ideal for vessels where space is at a premium, the D5WSC delivers a robust 5kW of thermal power to drive radiator networks, matrix blowers, and crucially heat your calorifier for on-demand domestic hot water. Its self-contained housing not only simplifies the fitting process but offers superior protection for critical components, ensuring reliable, year-round comfort on every voyage.
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High-Capacity Heating for Large Yachts & Commercial Vessels
HYDRONIC M2
Command the climate of larger yachts and commercial vessels with the Eberspacher Hydronic M2 (MII), the heavy-duty heating authority. Available in high-output 8kW, 10kW, and 12kW variants, this system is engineered to manage the vast coolant volumes of substantial marine engines. It effortlessly drives extensive radiator networks, underfloor heating systems, and high-capacity matrix blowers where standard 5kW units fall short.
Beyond superior cabin warmth, the M2’s immense thermal power provides abundant domestic hot water via large calorifiers, ensuring luxury comfort for the entire crew. Built on robust commercial technology, it features a long-life brushless motor for extended service intervals and offers biodiesel (FAME) compatibility (D12L models), delivering reliable, continuous performance and engine protection in the harshest marine environments.
View high-output specifications and system configuration options.
HYDRONIC S3 D5E
The modern standard 5 kW water heater for sailboats and motor cruisers.
Uses “stepless” technology to eliminate noisy start-stop cycles, ensuring undisturbed sleep at anchor.
seamlessly integrates with a calorifier to provide continuous domestic hot water for showers and galleys.
Efficiently powers radiator networks or matrix blowers for consistent, dry cabin warmth.
HYDRONIC D5 WSC
The definitive “Compact” 5 kW all-in-one marine heating solution.
Features internally integrated fuel and water pumps to drastically reduce installation footprint in tight engine rooms.
Ideal for vessels with limited mounting space where modular components are difficult to fit.
Simplified self-contained design protects critical components and offers easier “plug-and-play” installation.
HYDRONIC M2
Heavy-duty heating authority available in 8 kW, 10 kW, and 12 kW variants.
Engineered for large yachts and commercial vessels requiring massive thermal output.
Effortlessly drives extensive wet central heating systems, underfloor heating, and large-capacity calorifiers.
Built with commercial-grade components and a brushless motor to withstand continuous operation in harsh sea conditions.