A flameless heater includes a diesel engine, a hydraulic or electric load that is powered by the diesel engine thereby generating heat, a heat exchanger that transfers heat to air flowing through the air from the flameless heat source, and possibly other heat exchangers for heating the air flowing therethrough with engine coolant and/or with exhaust gases. The system may be operated to maintain relatively high load on the engine for at least the majority of the time so as to reduce or negate the need for parked regeneration. The system may also control airflow through the system and possibly other system parameters to obtain a given setpoint such as a given discharge air temperature. In one embodiment, airflow through the system is controlled by louvers under the power of an electric motor or other actuator controlled by the system's controller.

A heater with a visual flame display is described. The heater may include a top portion and a base, separated by concentric cylinders. The innermost cylinder houses a flame element, which may be spun into a vortex. The cylinders may be constructed from transparent materials such that the flame element is visible to an observer. The base provides heat at or near ground level for efficient heat distribution.

The present invention relates to a coupling structure of a case and an air heater body in an air heater, and the coupling structure includes: an air heater body for generating flames with the fuel supplied from a fuel tank and forcedly blowing the heat of the flames to the outside; the case detachably coupled surroundingly to the air heater body; fastening screws for unitarily coupling the air heater body and the case to each other; coupling flanges formed on both sides of the case in a longitudinal direction of the case and having first screw coupling holes screw-coupled to the fastening screws; and coupling brackets located on one side and the other side of the air heater body in the longitudinal direction of the air heater body in such a manner as to come into surface contact with the coupling flanges and having second screw coupling holes formed thereon correspondingly to the first screw coupling holes.

A fireplace assembly includes: a housing defining an airflow space and an inner chamber; one or more fans disposed in the housing to facilitate airflow through the airflow space; a flame generator disposed in the inner chamber and capable of generating a flame with a maximum heat output of at least 20,000 BTU (British thermal units); a display device disposed in the housing and configured to display a visual image in front of or behind the flame generator; one or more glass panels disposed in the housing to at least partially define the airflow space to facilitate the airflow; and a control module operatively coupled with the display device and disposed within the airflow space. The airflow through the airflow space is configured to control temperature within the airflow space.

One or more techniques and/or systems are disclosed for a heating device may comprise a control assembly having a self-contained, on board power supply. A control unit may control the operation of the heater and the power supply may comprise a first power source in electrical communication with the control unit, wherein the control unit controls the operation of the first power source to selectively supply electrical power to at least a portion of the heating device; and, a second power source in electrical communication with the control unit, wherein the control unit controls the operation of the second power source to selectively supply electrical power to at least a portion of the heating device.

The invention relates to a heating device, in particular for mobile use, comprising a combustion chamber for reacting fuel with combustion air in order to release heat, a heat exchanger for transferring at least part of the released heat to a heating medium to be heated, a fuel conveying device for supplying fuel to the combustion chamber, a combustion air fan for supplying combustion air to the combustion chamber, a heating medium fan for supplying the heating medium to the heat exchanger, a common drive for the combustion air fan and the heating medium fan, at least one sensor for monitoring the mass flow of the heating medium, and a controller, which controls the fuel conveying device and the common drive. The controller is designed to change the ratio of the amount of the heating medium and the amount of the fuel supplied to the combustion chamber according to the mass flow of the heating medium.

One or more techniques and/or systems are disclosed for a heating device may comprise a control assembly having a self-contained, on board power supply. A control unit may control the operation of the heater and the power supply may comprise a first power source in electrical communication with the control unit, wherein the control unit controls the operation of the first power source to selectively supply electrical power to at least a portion of the heating device; and, a second power source in electrical communication with the control unit, wherein the control unit controls the operation of the second power source to selectively supply electrical power to at least a portion of the heating device.

A heating apparatus for generating a hot air flow comprises a single fan, a burner heating element and a resistance heating element. In this respect, an air passage that conducts air to be heated and a combustion air passage that leads to a burner adjoin the fan downstream, wherein a combustion air flow in the combustion air passage can be controlled by a control element associated with the combustion air passage.

A burner box for use in an air handling system. The burner box includes a main body having a top wall, a bottom wall, side walls extending between the top and bottom walls, and intermediate walls extending between the top and bottom walls and positioned between the side walls. An open upstream end of the main body is divided by the intermediate walls into a first bypass opening and a second bypass opening spaced from the first bypass opening by a burner opening. A direct fired burner is positioned in the main body between the intermediate walls and adjacent the burner opening such that air drawn into the main body through the burner opening is directed over the direct fired burner for heating. An electronic control system is operatively connected to the burner box and configured to maintain a constant pressure difference across the direct fired burner.

A personal heater device including an ignition device configured to generate a spark to ignite a fuel; a combustion location where ignited fuel burns in response to the spark; a battery receiving port configured to receive a battery; a controller; and a fan assembly including a motor electrically coupled the battery receiving port and controlled by the controller, a fan coupled to an output shaft of the motor, and a passageway configured to route airflow generated by the fan to a location near the combustion location.