Abstract: This heating system consists of a ceiling or wall mounted housing containing a fan, motor, electric heater and optional controller which connects to a discharge vent via a duct which can all fit within a wall. It has primary usages as a room or shower heater where it can be recessed into a wall or ceiling where it intakes air from the room, heats it and routes it through an insulated duct in the wall and vents it back into the room near the floor. In a shower, the heater can be located high on the wall or in the ceiling away from the shower to keep it away from splashed water. Additionally, the heater and vent can both be mounted in the ceiling where the heater is outside the shower and the vent is in the shower. It can be controlled by a switch, wired thermostat or wireless remote.

Abstract: An apparatus including a first electrical connector; and a second electrical connector. The first and second electrical connectors have magnets to provide a magnetic holding force with each other and provide alignment of the electrical connectors to hold the second electrical connector against the first electrical connector at a predetermined position. Magnetic poles of the magnets are configured to limit orientation of the second electrical connector on the first electrical connector. The second electrical connector includes two power contacts and an interruption detector contact, where the power contacts are movably mounted on the second housing and configured to disconnect from electrical contacts of the first electrical connector, when the second electrical connector is being disconnected from the first electrical connector, only after the interruption detector contact of the second plurality of electrical contacts disconnects from an electrical contact of the first electrical connector.

Abstract: A heating, ventilation, and/or air conditioning (HVAC) system includes a heat exchanger configured to exchange heat between a refrigerant and an air flow, a blower configured to induce the air flow across the heat exchanger, and a control board configured to receive an input indicative of a presence of refrigerant external to the heat exchanger and adjust operation of the blower based on the input.

Abstract: Apparatus, systems and methods of using 70 CFM ventilation fans with heaters for bathrooms having depressibly engageable and depressibly releaseable light covers. The novel ventilation fans and heaters can be mounted to structure in ceilings and inside walls with telescoping suspension brackets that are affixed directly to separate sides of the housing to support the housing against joists and structural supports behind the ceiling. Adjustable louvers on the grill cover allow for outgoing heated air to travel in a different direction into a space from the incoming air travelling into the housing. Plastic type housings around blower wheels reduce undesirable noise effects. Light covers can be easily opened and closed by using depressible engageable fasteners, and depressible release fasteners.

Abstract: A blower intensified gas flame kettle including a kettle disposed in an upper housing and a gas burner disposed in a lower housing and having gas burner jets at least partially inserted into the upper housing. Burning gases emanating from the gas burner jets are directed toward the kettle and contained by the upper housing. The temperature and velocity of the burning gases are enhanced by action of a blower which blows air which mixes with flammable gas in the gas burner prior to burning. Higher temperatures and improved, radiant, conductive and convection heating of the kettle are achieved. A mechanized stirrer enhances heating of contents of the kettle by stirring the contents of the kettle.

Abstract: An air conditioning apparatus is provided with an air plenum in fluid communication with an air inlet and an air outlet. A fan moves air through the air plenum. An interchangeable air conditioning core is removably installed within the air plenum and interposed between the air inlet and air outlet such that air moving along an air pathway is forced to proceed through the interchangeable air conditioning core.

Abstract: Method for thermally spraying a heater onto a substrate, comprising providing a metallic material having a core and an insulator therein and thermally spraying the metallic material and the insulator onto a substrate to form a heater. Method of fabricating a thermally sprayed gas heater, comprising providing a gas flow apparatus that propels a gas through a housing; thermally spraying a material to form a resistive heating layer; bonding the resistive heating layer to a surface of the apparatus, the heating layer being positioned to heat the gas flow in the housing. Method of fabricating a heater system of a turbulent gas flow duct, comprising providing a duct having a gas flow channel, the channel having a shaped surface providing a turbulent gas flow therein; thermally spraying a material to form a resistive heating layer; positioning the resistive heating layer to heat the gas flow in the channel.

Abstract: An air dehumidifier for use in small enclosures such as gun and other types of safes is disclosed. The air dehumidifier provides a natural convection dehumidifier circulation system for use in enclosures that reduces natural convection airflow through a drying chamber and thereby dehumidifies and circulates air within the enclosure. Heated air released through the air flow apertures combine with air drawn in through the air intake apertures in the base, to provide air circulation and dehumidification within the safe interior. This invention also provides a drying chamber end cap which prevents articles within the enclosure from blocking the airflow out of the drying chamber.

Abstract: A fan heater includes a main body having a suction port provided at a lower side thereof and a hot-air outlet port provided at an upper side thereof, blower provided below the hot-air outlet port within the main body, a plurality of heating cartridge holders provided on in the main body, a plurality of heating cartridges, each of the heating cartridges configured to be secured to each of the heating cartridge holders and to heat air flowing into the main body through the suction port, a carbon fiber ribbon provided in each of the heating cartridges, and an interior housing that guides the air introduced through the suction port to the hot-air outlet port.

Abstract: A thermally sprayed gas heater comprises a gas flow apparatus that propels a gas through a housing; and a thermally sprayed heater bonded to a surface of the apparatus, the heater positioned to heat the gas flow in the housing. In other aspects, a heater system for a turbulent flow gas duct comprises a duct having a gas flow channel, the channel having a shaped surface providing turbulent gas flow in the channel, and a thermally sprayed heater positioned to heat the gas flow in the channel.

Abstract: A flame imitation manufacturing device of a fireplace relates to a flame imitation manufacturing device for simulating the burning state in a fireplace in the field of household appliances. Said device comprises a housing, a cross flow fan and a light source mounted on a base plate of the housing, a simulated fire chamber mounted on a back plate of the housing, ribbons mounted on the back plate of the housing by means of upper and lower strip bars and above the cross flow fan, and a light-transmitting glass plate mounted on the housing and in front of said ribbons. This invention, characterized in that said cross flow fan is a swinging one, is advantageous in that supplying wind non-directively by utilizing the swinging of said fan improves the flying state of ribbons so as to make the image state of burning flames more vivid, greatly enhances the authenticity of flames and lowers the cost thereof, and thus is adaptable to various flame imitation electrical-heated fireplaces and electrical appliances.

Abstract: The invention relates to a heating device comprising a housing (15), through which air to be heated can pass and which delimits a heating space controlled by a power supply control circuit connected to a power source. The heating space includes electric heating modules (14), each heating module consisting of a first and second metal tape (10, 10) that arc essentially parallel in a transversal direction (D) and of a positive temperature coefficient resistive elements (12) fixed between the two metal tapes.

Abstract: A frame for receiving a heating element for an electric heater of a ventilating, heating and/or air conditioning unit of a vehicle, in particular. The frame is shaped in the form of a hollowed-out box whose large faces, intended to be traversed by airflow conveyed by the unit, are held at a distance from each other in order to create between them a space for receiving the heating element. The frame is made of a single part in which means for holding the heating element inside the space are located in the area of the large faces.

Abstract: The inventive power system preferably comprises an air-duct provided with a vane-type rotor, which is arranged therein and mechanically connected to a shaft of a generator, and a heater electrically connected to the generator's outlet. The air-duct is incorporated into a building or arranged outside thereof. It can be located between the outer and inner walls of thereof and in its premises. The heater is mounted directly on the vanes of the rotor or they can be embodied in the form of electric heater. The electric heater located outside of the air-duct warms up the building independently of the temperature of air in the air-duct. An elastic sleeve can be installed between the air-duct and an air-balloon and is embodied in the form of a portion of the air-duct. The system can comprise a number of air-ducts of different configurations, a number of heat exchangers (heaters and/or coolers).

Abstract: The invention provides a ventilating and heating apparatus for installation in a building structure. In some embodiments, the apparatus includes a main housing in which is located a ventilating fan assembly and a heater fan assembly having a heater and a discharge duct terminating in a discharge outlet, wherein the heater is located within and connected to the discharge duct of the heater fan assembly. The heater can be shielded from the discharge outlet by at least one interior wall of the discharge duct. In some embodiments, the discharge duct can have a tapered portion approaching the discharge outlet. In some embodiments, a discharge aperture of a cover is recessed with respect to the discharge outlet of a fan housing.

Abstract: Electric heating device comprising an electric radiator (10) for heating the air passing through it, said radiator comprising a casing (12), at least one resistive element mounted in the casing and constituted by at least one zigzag metal strip (22) which is disposed so as to be directly exposed to the air passing through the casing, and a circuit (30) for controlling the electrical supply of the resistive element or elements connected to a power supply. The electric radiator (10) comprises a set of individual heating modules (20) disposed parallel to one another in the casing (12) and so as to be directly exposed to the air passing through the casing, each heating module (20) comprising a pleated or corrugated metal strip (22) and an electronic switch controlled by the control circuit (30) intended to selectively inhibit the electrical supply of the metal strip (22).

Abstract: An open coil resistance heater assembly is made for universal mounting between left and right hand installations in an appliance or other equipment. The heater assembly has its coils arranged symmetrically about a bisecting plane of the heater assembly and/or a center line of its terminal assembly aligned with the bisecting plane. The symmetrical coil arrangement and/or bisected terminal assembly allow the heater to be used in right hand or left hand installations.

Abstract: A heater for a washer-dryer includes a duct in which heating elements for heating the air flowing through the duct are disposed. A device for increasing the airflow in the area of a heating element is provided in the duct to improve the transportation of heat away from the heating element. The airflow device can be one or more projections on a wall of the duct extending into the duct and can be disposed upstream of the heating element with respect to a flow direction of the air, adjacent the heating element, and/or downstream of the heating element.

Abstract: This air heating device especially suited for low pressure air comprises an air duct in which an electric heating coil is located together with a thermistor which is part of an electronic thermostat to control the electric heating coil. The thermistor bead is so located as to see the heating coil and be exposed to the radiant heat of the latter. The thermistor is used as an airflow sensor so that the heating coil will gradually be decreasing its heating capability to eventually shut off according to the air velocity and temperature entering the duct; heating will be restored automatically once the airflow in the duct assembly has sufficiently cooled down the thermistor, therefore the thermistor acts as an airflow sensor to modulate the heating capacity according to the quantity of air flowing through the heating device to prevent overheating of the coil and consequently the activation of a thermal cut-out safety feature.

Abstract: A flue heater is detachably secured to the flue of a chimney. The flue heater uses an electrical power source to create heat and direct the heated air into the lower portion of a flue. The device can be attached to the flue before igniting a fire and removed immediately prior to lighting a fire. The device can be used with any pre-existing chimney without the need for any large expense in retrofitting a permanent flue heater.

Abstract: An improved heat pump system of the type having a thermostat capable of generating at least three stages of demand signals, outdoor and indoor heat exchange coils, at least one fan, a compressor, an expansion device, with the flow of refrigerant being reversible for purposes of selecting between heating and cooling modes of operation and a supplemental heater having a plurality of supplemental heating units for further heating an air stream passing over the indoor coil through an air supply plenum to supply air to a comfort space. An improvement in this system where each of the supplemental heating units has a unique heating capacity; a combination of supplemental heating units can be selected that is responsive to a demand for heat from the thermostat; and the selected supplemental heating units are turned on appropriately so that the level of heat demand by the thermostat is provided.

Abstract: An electric heater includes an electric heating coil that extends above the sidewalls of an air flow channel. The coil is formed in sections that extend transversely to the channel and are spaced by the width of a coil section to allow two heaters to be arranged face to face for shipping. This arrangement is very efficient because one of the heaters provides protection to the coil of the other of the heaters to reduce packaging costs.