Hydronic S3 D5: Powerful and Compact Efficiency
The Hydronic S3 D5 operates by heating a coolant mixture and circulating it through a closed-loop system. This enables several heating configurations:
- Radiators & Towel Rails: Provide consistent, silent warmth throughout the vessel.
- Domestic Hot Water: When coupled with a calorifier, it ensures a steady supply of hot water for showers and galleys.
- Space-Saving Matrix Heating: The system is fully compatible with Warm Air Blower Boxes, which can replace bulky radiators to save interior space.
This 3rd-generation heater is noted for its stepless heating power control, ensuring high efficiency and low fuel consumption. It is also compatible with the EasyStart Web, allowing for remote control via smartphone, and comes standard with a programmable 7-day timer.
Professional OFTEC-Trained Installation
Hydronic systems require precise plumbing and diesel engineering to function reliably and safely. At Marine Heating Solutions, our engineers are OFTEC-trained and specialise in Eberspacher Hydronic S3 D5 installations. We ensure that all marine-specific components, such as sealed exhaust pipes and hull skin fittings, are installed to Boat Safety Scheme (BSS) standards.
Every installation is accompanied by a Boat Diesel & Oil Appliance Certificate, fulfilling insurance requirements and proving the system’s safety. For detailed technical manuals and maintenance schedules, you can consult the official Eberspächer Hydronic support page or the OFTEC consumer guidance portal.
Kit includes:
| Heater unit |
| Fuel pump |
| Circulation pump |
| Mounting brackets |
| 1 metre basic exhaust pipe |
| Control panel with programmable 7-day timer |
| Compatible with our Warm Air Blower Boxes |
Eberspacher Hydronic S3 D5 12v Boat Installation Kit Price:
£2120.00
Optional Extras:
- Eberspacher EasyStart Pro Controller With Room Thermostat
- Eberspacher EasyStart Web
- Sealed Marine Exhaust Pipe
- Exhaust Skin Fitting
- Diesel Heater Fuel Tank
- Marine Fuel Filter With Stop Tap
- Header Tank