Abstract: An electrical fluid heater, in particular water heater, preferably for a motor vehicle, including at least one fluid accommodating container and at least one heating conductor having a conductive polymer structure, for heating fluid, in particular water, accommodated in the fluid accommodating container.

Abstract: An electrical heating device, in particular for a vehicle, includes a heat exchanger body, with a heat transfer surface and an at least partially closed cavity. The at least partially closed cavity has a wall section that at least partially delimits the at least partially closed cavity that is adjacent to the heat transfer surface. A pyrotechnical charge is arranged in the at least partially closed cavity, and the at least partially closed cavity has a further wall section delimiting the at least partially closed cavity at least partially and to which an electrical connection line of the electrical heating device is adjacent.

Abstract: An electrical liquid heating device, in particular water heating device, preferably for a motor vehicle, including at least a first conductive layer, in particular a first metal layer, a second conductive layer, in particular a second metal layer, and a polymer layer which contains a polymer component and a conductive carbon component and is arranged between the first and the second conductive layer, wherein liquid channels for conducting the liquid, in particular water, being heated are provided which extend from a first side of the polymer layer facing the first conductive layer to a second side of the polymer layer facing the second conductive layer.

Abstract: A method for producing an electrical fluid heater, in particular an air heater for a motor vehicle, including at least one fluid guiding channel for the fluid to be guided through, wherein at least one conductive polymer structure containing a polymer component and a conductive component, in particular carbon component, is coated, in particular cohesively, with at least one metallic layer.