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Product Code: EBE252219050000

Apart from all interior rooms of the boat, Eberspacher water heaters also heat the domestic water and in addition ensure that the engine is pre-heated optimally. The Hydronic 5 offers more heat and power with just a small increase in size to its smaller brother the Hydronic 4. For preheating trucks, vans, central heating for boats where it can be used to provide hot water via an indirect tank for washing etc.

How the Eberspacher water heater works

The water heated to 80°C is pumped through the piping and the radiators connected to it. Since the marine diesel and the generator generate heat during the journey, these units should also be included in the heating system to use the waste heat. Installation of an expansion tank, a pressure gauge and a safety valve is indispensable.

The most important advantages of the Hydronic summarised

  • Individual temperature setting on every flat radiator
  • No fan noise with flat radiators
  • Heats the domestic water in addition to the passenger compartment
  • Optimum flexibility
  • Installation in the engine room possible
  • Small size of heater
  • Small dimensioned pipes
  • Heat delivery as required: Flat radiators, radiators with fan
  • Pre-heating the engine
  • Maintenance-free and easy to service


Additional Information:

  • 12v
  • Heating Capacity: High 5000w/Low 2300w
  • Power Requirements: High 50w/Low 23w
  • Fuel Consumption l/h: High 0.62/Low 0.27
  • Water Throughput (Against 0.1 bar): 900 ± 100
  • Weight: 2.9kg
  • This item includes the heater unit only and comes complete with a 3 year warranty




220mm x 86mm x 160mm

This product is available for special order please contact us for availability.

£832.09 (ex. VAT)

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