Abstract: A tubular heating element for heating fluid media, in particular for household appliances, comprising a jacket pipe inside which there is disposed at least one heating coil made of an electrical resistance heating wire and embedded in an electrical insulation material, the heating coil having a first and a second terminal portion by means of which the heating coil is connected to a source of current via at least one connection element at each end, and at least one operating portion extending between the two terminal portions of the heating coil. It is further specified that the diameter of said heating coil increases at at least one terminal portion in the direction of the operating portion.

Abstract: A heating system for heating fluid media, in particular for domestic appliances, including a carrier unit, a heating unit arranged on the carrier unit and a heat transfer element which is arranged on the carrier unit and comprising a material which is a good conductor of heat, which heat transfer element has a first mounting portion for mounting a first safety device which responds at a first response temperature and a second mounting portion for mounting a second safety device which responds at a second response temperature which is lower than the first response temperature, which heat transfer element has a first temperature pickup portion which is in direct heat-conducting contact with the heating unit and the first safety device. Further, a heat transfer element has a second temperature pickup portion which is spatially separate from the first temperature pickup portion and which is in heat-conducting contact with the medium to be heated and the second safety device.