Introduction - HEATER

Heat exchanger

This device has been designed (with a relatively low volume compared with heat exchange surfaces) to allow the flow of heat from a fluid at a higher temperature to another fluid at ambient temperature.

Resistive divider

This is an electrical device which allows the variation of the output voltage, the same as the input voltage, by altering the number of resistances in series which the electrical current passes through via a special control. It is usually used to alter the speed of a connected consumer motor.

Recirculation

This function of the ventilation system makes it possible to recirculate the same air in the passenger compartment, preventing the intake of outside air. It is a very useful function because it makes it possible to exclude undesired outside air from the passenger compartment (fumes, air which is polluted from driving in traffic).