How the Hydronic works

On starting the heater draws in combustion air (1) from the engine area or where the heater is located.

Fuel is drawn (2) from the tank and mixed with the combustion air.

A glow pin (3) ignites the mix and a controlled flame is established in the heat exchanger (4). The integrated water pump (5) now circulates the system’s water, passing it over the heat exchanger and onto the calorifier and radiator system (6).

Once the system is hot, the heater will regulate down to a lower heat level. This avoids unnecessary cycling and thus avoids wasteful repetition of the start cycle.

The heater in lower, or stepped output tops up the system to maintain optimum temperature.

When heavy demands are made on the system, such as showers or a fall in outside temperature, then the Eberspächer steps up again to regenerate the heat in the system.

All the components that go into making a full installation are purpose designed to work together reliably and withstand a tough environment.