A mobile heating device, comprising a heater assembly including a fuel chamber, and a fuel supply line for supplying liquid fuel to the heater assembly, where the heater assembly further includes an evaporator receiving arrangement for evaporating liquid fuel, said arrangement comprising an evaporator receiving body for receiving an evaporator element for distributing and evaporating liquid fuel, where the fuel supply line comprises a supply pipe with an inlet for inputting fuel and an outlet for outputting fuel to the combustion chamber, where the fuel supply line further includes an emptying device for partly or completely emptying the fuel supply line through the outlet.

A mobile heating device, comprising a heater assembly including a fuel chamber, and a fuel supply line for supplying liquid fuel to the heater assembly, where the heater assembly further includes an evaporator receiving arrangement for evaporating liquid fuel, said arrangement comprising an evaporator receiving body for receiving an evaporator element for distributing and evaporating liquid fuel, where the fuel supply line comprises a supply pipe with an inlet for inputting fuel and an outlet for outputting fuel to the combustion chamber, where the fuel supply line further includes an emptying device for partly or completely emptying the fuel supply line through the outlet.

The invention relates to an evaporator burner (1; 101) for a mobile heating device, comprising: a combustion chamber (3), a fuel feed line (4) for feeding liquid fuel, and an evaporator for evaporating fed fuel. The evaporator has a support body (6; 106) made of a nonporous material, comprising a fuel preparation surface (6a; 106a) which faces the combustion chamber (3) and which comes into contact with the liquid fuel. A surface structuring (11) with a plurality of depressions (11a) and elevations (11b) is introduced into the fuel preparation surface (6a; 106a) and/or into a support body (6; 106) rear face (6b; 106b) facing away from the fuel preparation surface.

An evaporator burner (100) for a mobile heating unit which is operated using liquid fuel is provided, said evaporator burner having: a mixture preparation region (2) for the mixing of fuel with combustion air to form a fuel-air mixture; a fuel feed (1) for feeding liquid fuel to the mixture preparation region (2); a combustion air feed (B) for feeding combustion air to the mixture preparation region (2); at least one evaporation surface (8) to which the liquid fuel is fed and which serves for the evaporation of the liquid fuel; a conversion region (3), positioned downstream of the mixture preparation region (2) in terms of flow, for the conversion of the fuel-air mixture into combustion exhaust gases (A) with a release of heat; and an exhaust-gas recirculation means (10; 210) for the recirculation of combustion exhaust gases (A) into the mixture preparation region (2).

A method of fueling a flame, a fuel, and a fuel burning system is provided. The system has a melted wax reservoir, a fuel, a melting grate, and a wick. The fuel has a body, a priming section, a front wall, and a bottom surface. The priming section is vertically spaced from the bottom surface and extending from the front wall to create an overhang. The priming section extends along less than the entire length of the front wall. The melting grate is configured to support the fuel. The melting grate extends above the melted wax reservoir so that fuel melted on the melting grate can be received into the melted wax reservoir. The wick has an at least partially hollow core forming a burn chamber extending above the melting grate. The fuel is configured to be positioned so the overhang is located over or adjacent to the wick.

A method of fueling a flame, a fuel, and a fuel burning system is provided. The system has a melted wax reservoir, a fuel, a melting grate, and a wick. The fuel has a body, a priming section, a front wall, and a bottom surface. The priming section is vertically spaced from the bottom surface and extending from the front wall to create an overhang. The priming section extends along less than the entire length of the front wall. The melting grate is configured to support the fuel. The melting grate extends above the melted wax reservoir so that fuel melted on the melting grate can be received into the melted wax reservoir. The wick has an at least partially hollow core forming a burn chamber extending above the melting grate. The fuel is configured to be positioned so the overhang is located over or adjacent to the wick.

A smudge pot with a pot, a pot lid, a chimney, a return pipe, and an access port. The pot has an interior configured to hold liquid fuel. The pot lid has a combustion hole and a return hole extending therethrough. The chimney is aligned with the combustion hole. The return pipe has a first end positioned inside of the chimney, a second end coupled with the pot lid at the return hole, and a pipe wall extending between the first end and the second end. The first end has a first opening aligned with a center of the return pipe and the second end has a second opening aligned with the center of the return pipe. The pipe wall comprises an arc adjacent to the first end and may be parallel to the chimney adjacent to the second end.

A smudge pot with a pot, a pot lid, a chimney, a return pipe, and an access port. The pot has an interior configured to hold liquid fuel. The pot lid has a combustion hole and a return hole extending therethrough. The chimney is aligned with the combustion hole. The return pipe has a first end positioned inside of the chimney, a second end coupled with the pot lid at the return hole, and a pipe wall extending between the first end and the second end. The first end has a first opening aligned with a center of the return pipe and the second end has a second opening aligned with the center of the return pipe. The pipe wall comprises an arc adjacent to the first end and may be parallel to the chimney adjacent to the second end.

A film evaporator burner arrangement (1) is provided, having: a combustion chamber arrangement comprising a combustion chamber (2) for the conversion of a fuel-air mixture with the release of heat, which extends in the axial direction along a longitudinal axis (Z); a combustion air supply (5) for the supply of combustion air, which is configured such that the combustion air is supplied with a tangential flow component to at least one combustion air inlet (8) of the combustion chamber arrangement; a film evaporator surface (4) for evaporating liquid fuel originating from a fuel film (10), which is arranged at a rear wall (3) axially rearward of the combustion air inlet (8); and a fuel supply (9) for the supply of liquid fuel to the film evaporator surface (4).

A film evaporator burner arrangement (1) is provided, having: a combustion chamber arrangement comprising a combustion chamber (2) for the conversion of a fuel-air mixture with the release of heat, which extends in the axial direction along a longitudinal axis (Z); a combustion air supply (5) for the supply of combustion air, which is configured such that the combustion air is supplied with a tangential flow component to at least one combustion air inlet (8) of the combustion chamber arrangement; a film evaporator surface (4) for evaporating liquid fuel originating from a fuel film (10), which is arranged at a rear wall (3) axially rearward of the combustion air inlet (8); and a fuel supply (9) for the supply of liquid fuel to the film evaporator surface (4).