A multifunctional handle-type electrical blow dryer includes a temperature measuring device installed on a housing of the electrical blow dryer for measuring a temperature at the housing of the electrical blow dryer to obtain and output a corresponding on-site measured temperature; an on-site alarm device for performing a corresponding voice alarm operation when the on-site measured temperature is over-limit; a data testing mechanism includes an ultrasonic transmitting device, an ultrasonic receiving device and an air-temperature testing device. The ultrasonic transmitting device is installed on the high definition camera for transmitting an ultrasonic signal towards the ground and recording the time of transmitting the ultrasonic signal. The ultrasonic receiving device is installed on the high definition camera, near the ultrasonic transmitting device, for receiving the ultrasonic signal transmitting from the ultrasonic transmitting device to the ground and reflected from the ground. This invention improves the function of an electrical blow dryer.

A combustion heater generates heat by means of flame. The combustion heater is disposed adjacent to a refrigerant circuit filled with a combustible refrigerant. The combustion heater includes a combustion unit and a porous body. The combustion unit causes generation of flame. The porous body covers the combustion unit or a periphery of the combustion unit. The porous body at least partially covers both or one of a combustion space receiving combustible refrigerant leaking from the refrigerant circuit and a member in contact with the combustible refrigerant leaking from the refrigerant circuit. The porous body has a plurality of holes. The holes have a diameter d1 equal to or less than an extinction diameter d of the combustible refrigerant.

A linear fireplace system, assemblies, modular units, and related methods that can be installed in a modular fashion at a selected installation location so as to avoid drawbacks experienced in the prior art. The system can include modular linear units, corner units, and/or end units interconnectable to form a modular linear fireplace assembly. The system can include an alignment track system with a track member that receives alignment rails on the bottom of the modular units to axially align the interconnected units. The system can include a combustion air flow passage within the fireplace that maintains a relatively low exterior temperature of the assembly and that allows combustible and non-combustible building materials to be installed against or immediately adjacent to the top and base portions of the modular units of the assembly.

The disclosed technology includes systems and methods for detecting an at least partially obstructed air filter in a furnace. The disclosed technology can include a system and method that can receive temperature data from a flame sensor configured to detect a temperature of a flame in a burner, determine that an air filter associated with the burner is at least partially obstructed by determining that the temperature data indicates the flame temperature is greater than or equal to a threshold temperature, and output an alarm signal indicating that the air filter is at least partially obstructed.

The disclosed technology includes systems and methods for detecting an obstructed air filter in a furnace. The disclosed technology can include a method and system that includes an air inlet, an air filter for filtering particles from air passing through the air inlet, an air moving device, a fuel valve, a burner, a pressure sensor, and a controller in communication with the pressure sensor and configured to output an alarm signal when the controller receives differential pressure data from the pressure sensor that indicates that the air filter is obstructed.

A furnace is disclosed. The furnace may include an enclosure having a vertical support column formed by a heat exchanger compartment panel and a blower compartment panel. The furnace may include a window assembly having venting openings hidden by a viewing window. The furnace may also include a rail to support a removable heat exchanger system. The furnace may further include a wire retaining fin assembly to retain a wire. A heat exchanger header design including features to retain a sealant is also disclosed.

An electronic cigarette includes a shell and a mouthpiece. The external wall of the shell has an air inlet. An atomizer and a liquid-supply are in contact with each other. The air inlet, atomizer, and an aerosol passage are interconnected.

A linear fireplace system, assemblies, modular units, and related methods that can be installed in a modular fashion at a selected installation location so as to avoid drawbacks experienced in the prior art. The system can include modular linear units, corner units, and/or end units interconnectable to form a modular linear fireplace assembly. The system can include an alignment track system with a track member that receives alignment rails on the bottom of the modular units to axially align the interconnected units. The system can include a combustion air flow passage within the fireplace that maintains a relatively low exterior temperature of the assembly and that allows combustible and non-combustible building materials to be installed against or immediately adjacent to the top and base portions of the modular units of the assembly.

An electric radiator is provided. The electric radiator includes: a housing provided with an air channel cover therein; a heating assembly disposed in the housing and defining a natural convection air channel with the air channel cover, an air supply inlet being formed at a first end of the natural convection air channel and an air supply outlet being formed at a second end of the natural convection air channel above the air supply inlet, air in the natural convection air channel being heated by the heating assembly to form a natural convection in the natural convection air channel; a mesh hood mounted onto a front surface of the housing and covering the heating assembly and the air supply outlet; a first temperature limiter mounted onto the heating assembly and adjacent to the air supply outlet in an up-down direction.

A heater for a vaporizer with air preheating element includes a casing, a tunnel with a perforated bottom, which is a cylindrical heating chamber for placing a cigarette, a heating element of a resistive type, a heat exchanger, including air channels for circulation and preheating of air by a heater, a top end and a bottom end, an air intake hole made in the top end. Outlet holes are communicated with exits of air channels of the heat exchanger for intake of air preheated by the heater in the tunnel. The casing is made in the form of a tape of a thin-film dielectric heat-resistant material, on which a thin layer of resistive material with contacts is applied on the end of one side, forming the heating element, and on the other side a top and bottom spacers are fixed and inclined toward the middle, as well as the edging, which are made of flexible heat-resistant material. The above mentioned tape with a heating element, located on its external side, is rolled into a cylinder and forms a tunnel, and is additionally coiled into several interconnected spiral coils, and forms a spiral casing with the top and bottom ends so that the top and bottom spacers and the edging located on the inside form a spiral heat exchanger comprising the top and bottom and the middle spiral air ducts for spiral and labyrinth circulation and preheating of air, and at the bottom there is an additional inlet hole for air intake.