Auxiliary Heater

Introduction

Air fan from the combustion blows oxygen into the combustion chamber. a number of this air is routed into a secondary chamber.

This chamber is pre-heated by a glow element. Fuel is pumped in once a particular temperature has been reached within the chamber.

The fuel/air mixture is ignited by the spark plugs as in the case of a gasoline engines and fuel injectors directly as in the case of diesel engines.

The resultant flame enters the combustion chamber. Once the flame has stabilized, the glow element is transitioned . the warmth generated is transferred to the coolant within the device.

An electrical circulation pump keeps the coolant circulating while ever the water-based auxiliary heater is in operation.

The heated coolant is then conveyed to the warmth exchanger of the vehicle heater. the warmth is routed into the passenger compartment by way of the vehicle fan.

Once the temperature of the coolant has risen to approx. 70°C, the control unit switches to part-load operation to save lots of energy.

As compared to air-based auxiliary heaters, the advantage of water-based auxiliary heaters is that they also warm the engine within the process, thus enhancing starting performance.

Control

Auxiliary heaters are often activated by way of a timer or by remote . Both a foreign control unit and a smartphone are often used for this purpose.

Safety

Particularly in winter, auxiliary heaters confirm car windows are defrosted ready for driving and don’t mist up. a transparent view of the road is thus guaranteed.

Auxiliary heaters also satisfy a spread of safety requirements, in order that the vehicle is usually safe to drive.

Value retention

Cold starting has roughly an equivalent effect on a car engine as driving 70 kilometers on a motorway. a contemporary water-based auxiliary heater doesn’t just warm the passenger compartment, in many vehicles it also heats the engine cooling circuit. This eliminates the highly wear-inducing cold starting phase and thus contributes towards value retention.

Protection of the environment

Modern water-based auxiliary heaters don’t just warm the passenger compartment, in many vehicles they also heat the engine cooling circuit. A pre-heated engine requires appreciably less fuel on starting, as there’s then no cold starting or warm-up phase.

Warm starting reduces pollutant emissions by around 60%. Less pollution is thus one among the arguments in favour of using an auxiliary heater.

With their constant flame, modern water-based auxiliary heaters also help to realize almost ideal combustion with very low exhaust gas values.

Originally published at https://www.carengineered.com on December 28, 2020.