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 boiler for heating a flow capable medium, especially for heating water, comprising a boiler housing made from plastic and a heater protruding through a mounting hole in the boiler housing into the interior of the boiler housing, being fixated in the mounting hole through a fixation means. Furthermore the interior diameter of the mounting hole in the boiler housing is at least in sections approximately identical to the outer diameter of the heater and the heater has an unheated section in the area of the mounting hole.

Abstract: A heating apparatus for heating a fluid, in particular in domestic appliances, which comprises a tubular casing, at least one electrical resistance heating wire which is arranged in the interior of the tubular casing and which is embedded in an electrically insulating, heat-conducting insulating material in the tubular casing, at least one connection unit which is arranged in the interior of the tubular casing and which is passed outwardly out of the tubular casing for connection of the electrical resistance heating wire to an electrical energy source disposed outside the tubular casing, and at least one closure bead which closes the opening of the tubular casing. It is further provided that the connection unit is also surrounded by the insulating material within the tubular casing to the closure bead and the closure bead is, at its outside, provided with at least one filling slot which extends over its entire axial length.

Abstract: A flange unit for holding a heating device to a fluid container of an appliance accommodating a fluid to be heated, in particular a domestic appliance, comprising a flange body 12 which is made from a non-metallic material and which can be mounted to a fluid container 60 by at least one fixing device 20, wherein said fixing device 20 is formed by at least one fixing element 22 which can be brought into positively locking engagement with the fluid container 60.

Abstract: A heating apparatus for heating a fluid, in particular in domestic appliances, which comprises a tubular casing, at least one electrical resistance heating wire which is arranged in the interior of the tubular casing and which is embedded in an electrically insulating, heat-conducting insulating material in the tubular casing, at least one connection unit which is arranged in the interior of the tubular casing and which is passed outwardly out of the tubular casing for connection of the electrical resistance heating wire to an electrical energy source disposed outside the tubular casing, and at least one closure bead which closes the opening of the tubular casing. It is further provided that the connection unit is also surrounded by the insulating material within the tubular casing to the closure bead and the closure bead is, at its outside, provided with at least one filling slot which extends over its entire axial length.

Abstract: A boiler for heating a flow capable medium, especially for heating water, comprising a boiler housing made from plastic and a heater protruding through a mounting hole in the boiler housing into the interior of the boiler housing, being fixated in the mounting hole through a fixation means. Furthermore the interior diameter of the mounting hole in the boiler housing is at least in sections approximately identical to the outer diameter of the heater and the heater has an unheated section in the area of the mounting hole.

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.