A device for controlling the temperature of workpieces, in particular for drying vehicle bodies, having a housing, a temperature-controlling tunnel accommodated in the housing, and a temperature-controlling system for controlling the temperature of workpieces. The temperature-controlling system includes a full-space temperature-controlling device which can control the temperature of a workpiece as a whole, and a local temperature-controlling device which can control the temperature of locally delimited regions of the workpiece and which comprises multiple temperature-controlling units that can be activated and actuated independently of one another for this purpose. The full-space temperature-controlling device and the local temperature-controlling device are provided in the temperature-controlling tunnel such that a workpiece at least within an active section in the temperature-controlling tunnel can be under the influence of both the full-space temperature-controlling device as well as the local temperature-controlling device. A system and a method for controlling the temperature of workpieces are additionally provided.

An electric heater system includes an inlet, an outlet, a plurality of heat exchanger assemblies, and one or more connectors. The plurality of heat exchanger assemblies are connected in series. Each heat exchanger assembly includes a vessel, heating elements disposed within the vessel, and a fluid guide member. The connectors secure the vessels of the plurality of heat exchanger assemblies to each other. The connectors are also in fluid communication with the vessels. Fluid entering the inlet flows through the heat exchanger assemblies and through one or more connectors where it exits the outlet. The fluid guide members of the heat exchanger assemblies are of different or the same combinations to generate a predetermined pressure drop between the inlet and the outlet.

A system for precision temperature control of thermal bead baths used in biological laboratories to heat biological samples. An insulated outer shell and an inner shell sealed together to form a recirculation pathway. The inner shell has an air extraction port opening into the recirculation pathway and at least one air injection port opening into the recirculation pathway. A fan in the recirculation pathway draws air through the air extraction port. A thermal sensor is connected to a control and is disposed in close proximity to one of the air injection ports. Thermal beads are placed in a mesh basket inside the inner shell. The fan draws air from the inner shell through the beads and into the recirculation pathway, where the air is heated by a thermal element. The air flows past the thermal element and through the air injection ports back into the inner shell.

A furnace for a heating, ventilation, and air conditioning (HVAC) unit includes a heat exchange tube configured to flow combustion products therethrough and place the combustion products in a heat exchange relationship with an air flow directed across the heat exchange tube. The furnace also includes a burner assembly fluidly coupled to a first port of the heat exchange tube and configured to generate the combustion products directed into the heat exchange tube via the first port, and a draft inducer blower fluidly coupled to a second port of the heat exchange tube and configured to draw the combustion products through the heat exchange tube. The burner assembly is higher in position than the draft inducer blower relative to a base of the HVAC unit.

A system and apparatus for precision temperature control of thermal bead baths used in biological laboratories to heat biological samples is disclosed. The system has an insulated outer shell and an inner shell sealed together to form a recirculation pathway. The inner shell has an air extraction port opening into the recirculation pathway and at least one air injection port opening into the recirculation pathway. A fan is in the recirculation pathway and is positioned to draw air through the air extraction port. At least one thermal sensor is connected to a control and is disposed in close proximity to one of the air injection ports. Beads used in thermal bead baths are placed in a mesh basket inside the inner shell. The fan draws air from the inner shell through the beads and into the recirculation pathway, where the air is heated by a thermal element. The air flows past the thermal element and through the air injection ports back into the inner shell.

The present invention relates to a novel diverter device. The device provides users with a removable and repositionable diversion attachment, which is secured to a jet heater, or other portable heating unit. The diverter device comprises a generally U-shaped component of stainless steel that is attached to the jet heater via a clamp, or other attachment means, allowing users to reposition the device as needed. The device allows the user to adjust the airflow from the jet heater in several different ways by simply rotating or repositioning the U-shaped component.

A heating appliance has electrical circuitry, a controller, a heating element, a temperature sensor, and a power selection switch having a varying power setting for enabling the user to select a varying power heating mode during which the room temperature is sensed by and if below a certain desirable temperature level, the controller causes higher power heating until the room temperature reaches the certain desirable temperature level and then causes lower power heating.

An adaptable system for defogging a mirror in a steamy bathroom having a tube assembly with a plurality of openings with an impeller and a plurality of heating elements for blowing hot air through the openings onto the fogged mirror. In one example embodiment, the tube assembly has louvers directing the hot air from the openings. The system has a plurality of mounting assemblies configured for all types of mirrors operative for coupling to the tube assembly, such as a portable mounting assembly with a rechargeable battery that selectively attaches on or adjacent to a mirror. The system has an articulated arm mounting assembly in one example embodiment. The system has a mounting assembly fixture in another example embodiment. A kit comprises the tube assembly and at least one mounting assembly.

A heating unit for a heating, ventilation and/or air conditioning (HVAC) system may have a first airflow path through the heating unit, a second airflow path through the heating unit, and a heater assembly having a first heating coil positioned within the first airflow path, a second heating coil positioned within the second airflow path, and a coil divider separating the first heating coil and the second heating coil.

The invention relates to a cabin air inlet module (16). The cabin air inlet module (16) comprises a streaming channel body (8). The streaming channel body (8) comprises at least one wall which limits a streaming channel wherein incoming air (5) is supplied to a zone (2) of a cabin (3). The cabin air inlet module (16) comprises an electric heating element (9) which is used for heating the incoming air (5). According to the invention it is proposed that the electric heating element (9) is embodied as a two-dimensional heating element (in particular as a heating paper, a heating web, a heating foil or a heating varnish). The two-dimensional heating element extends along a wall of the streaming channel body (8). The inventive cabin air inlet module (16) is arranged upstream with a small distance (25) from an inlet opening (6) into the zone (2) of the cabin (3). The inventive cabin air inlet module (16) is used for a tempering zones (2) of a cabin (3) of an airplane according to the needs.