The heat exchange device, in particular, for a motor vehicle comprises at least one component assembly with a first component carrying electric current, and a second component with two parts contacting the first component so that electric charge carriers a...

The device has at least one heat exchanger unit (12a) and at least one second heat exchanger unit (12b) with a first component (13b) of a material with defined electrical and thermal conductivity. The temperature of the first component of the second heat e...

The auxiliary electrical heater (10) for a passenger vehicle heats air and has an air outlet opening (14) in the lower area of the vehicle door (16). The heater is an electrical PTC - (Positive Temperature Coefficient) heater (22) mounted directly in the a...