A liquid fuel burning device, comprising: - an elongated combustion compartment comprising side walls having an outer surface and an inner surface defining the radial periphery of the combustion compartment having a central axis extending from a proximal end to a distal end of the compartment in the longitudinal direction, where distal end is open allowing fluid communication from inside the combustion compartment and out of the compartment; - airflow means for providing a current of air in a direction from the proximal end of the combustion compartment and towards the distal end in a direction parallel to the central axis of the compartment; - a fuel nozzle for aerification of liquid fuel inside the combustion compartment, - fuel feeding means for feeding liquid fuel to the fuel nozzle, - pressure providing means for applying pressure to the liquid fuel fed via the fuel feeding means; - a thermal insulation layer arranged radially between the central axis of the combustion compartment and the side walls of the compartment, reducing the heat transfer in a direction from the central axis of the combustion compartment towards the side walls, - a thermal absorbent layer arranged radially between the central axis of the combustion compartment and the insulation layer, allowing thermal energy generated within the combustion compartment to be absorbed and radiated back into the combustion compartment in a direction towards the central axis when thermal equilibrium has been reached between the combustion compartment and the thermal absorbent layer, - characterized in that the liquid fuel feeding means comprising a circulating fuel arrangement, the arrangement comprising a fuel tank, an output conduit from fuel tank, an input conduit into fuel tank, a driving arrangement for circulating the liquid, a regulator valve for regulating the pressure inside the circulating fuel arrangement, and a liquid input means for incrementing the amount of liquid inside the circulating fuel arrangement, where the output conduit or the input conduit is in fluid communication with the aerification nozzle of the device for burning fluid fuel, so that the circulation arrangement may deliver a certain amount of fuel to the device, and where any excess fuel is re-circulated into the fuel tank, said circulating fuel arrangement being a closed circulating system and where the device comprises an oxygen measuring means and/or a pressure measuring means arranged to measure the oxygen and/or pressure of the exhaust gas of the device and wherein the pressure and/or the oxygen measuring means has at least part control of the regulator valve. - an elongated combustion compartment comprising side walls having an outer surface and an inner surface defining the radial periphery of the combustion compartment having a central axis extending from a proximal end to a distal end of the compartment in the longitudinal direction, where distal end is open allowing fluid communication from inside the combustion compartment and out of the compartment; - airflow means for providing a current of air in a direction from the proximal end of the combustion compartment and towards the distal end in a direction parallel to the central axis of the compartment; - a fuel nozzle for aerification of liquid fuel inside the combustion compartment, - fuel feeding means for feeding liquid fuel to the fuel nozzle, - pressure providing means for applying pressure to the liquid fuel fed via the fuel feeding means; - a thermal insulation layer arranged radially between the central axis of the combustion compartment and the side walls of the compartment, reducing the heat transfer in a direction from the central axis of the combustion compartment towards the side walls, - a thermal absorbent layer arranged radially between the central axis of the combustion compartment and the insulation layer, allowing thermal energy generated within the combustion compartment to be absorbed and radiated back into the combustion compartment in a direction towards the central axis when thermal equilibrium has been reached between the combustion compartment and the thermal absorbent layer, - characterized in that the liquid fuel feeding means comprising a circulating fuel arrangement, the arrangement comprising a fuel tank, an output conduit from fuel tank, an input conduit into fuel tank, a driving arrangement for circulating the liquid, a regulator valve for regulating the pressure inside the circulating fuel arrangement, and a liquid input means for incrementing the amount of liquid inside the circulating fuel arrangement, where the output conduit or the input conduit is in fluid communication with the aerification nozzle of the device for burning fluid fuel, so that the circulation arrangement may deliver a certain amount of fuel to the device, and where any excess fuel is re-circulated into the fuel tank, said circulating fuel arrangement being a closed circulating system and where the device comprises an oxygen measuring means and/or a pressure measuring means arranged to measure the oxygen and/or pressure of the exhaust gas of the device and wherein the pressure and/or the oxygen measuring means has at least part control of the regulator valve.