An air intake control assembly for adjusting an air intake into a combustion chamber of a solid fuel burning appliance is provided. The air intake control assembly comprises a mounting structure having at least one air intake opening, a shutter mounted to the mounting structure and configurable between an open configuration and an at least partially closed configuration, a power supply, a motor operatively connected to the shutter and activable to modify a configuration of the shutter with respect to the at least one air intake opening, a temperature sensor electrically connected to the motor and the power supply to monitor a temperature representative of a temperature of the combustion chamber; and an electric circuit connecting the motor to the power supply and being operatively connected the temperature sensor. A solid fuel burning appliance and a method for controlling an air intake into a combustion chamber of a solid fuel burning appliance are also provided.

A gasifier for disposing of biomass and other waste materials through a gasification and combustion process. The gasifier includes a primary chamber for receiving and holding biomass or a selected waste product. A heat transfer chamber is disposed adjacent the primary chamber. A burner is associated with the gasifier for generating heat and heating the gasifier during various phases or portions of the gasification and combustion process. In the gasification process, the heat transfer chamber is heated and the heat is transferred to the primary chamber where the biomass is heated. During the gasification process, biomass material is volatized generating fumes and gases that later react and release heat through exothermic reactions. Once the gasification process has been concluded, the process enters a combustion phase where the biomass is actually burned. During the gasification-combustion phases, the amount of heat supplied by the burner will vary. Generally the amount of energy or heat supplied by the burner will decrease throughout the process because the biomass itself will supply substantial amounts of heat through exothermic reactions.

Methods, burner, apparatuses, and systems are provided for controlling a velocity of a jet of gas exiting a burner when the gas is heated or not and at a corresponding second higher temperature or lower first temperature. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to maintain velocity of the gas as delivered to a combustion chamber based on the temperature of the gas. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a ferromagnetic material. The state of the temperature-sensitive magnetic valve changes based on the temperature of the gas to maintain the velocity of the gas delivered through an outlet of the burner to the combustion chamber. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

Methods, burner, apparatuses, and systems are provided for controlling a velocity of a jet of gas exiting a burner when the gas is heated or not and at a corresponding second higher temperature or lower first temperature. Through the use of a temperature-sensitive magnetic valve, the flow of a gas can be redirected to maintain velocity of the gas as delivered to a combustion chamber based on the temperature of the gas. The temperature-sensitive magnetic valve can redirect flow of the gas based on the magnetic state of a ferromagnetic material. The state of the temperature-sensitive magnetic valve changes based on the temperature of the gas to maintain the velocity of the gas delivered through an outlet of the burner to the combustion chamber. Thus, heated gases and standard temperature gases can be delivered at approximately equal velocities thus maintaining flame size and shape.

A downward mobile gasification boiler for surface gas-phase combustion and pyrolysis of biomass briquette is provided. The boiler includes a gasification combustion chamber, a gas combustion chamber, a stranding cage slag remover, a heat exchanger, a water jacket, an air duct and an air distribution system. The air duct connected with the air distribution system is arranged in the inner cavity of the wall surface of the gasification combustion chamber. The gas combustion chamber is arranged at the upper part of the gasification combustion chamber, and an air outlet is arranged in the middle to communicate the gas combustion chamber with the gasification combustion chamber. The lower part of a port of the gasification combustion chamber is provided with a twisting cage slag remover.

Disclosed is a gas heater, including: a gas bottle for storing a gas, a valve body connector, and a burner. A cavity is provided in the valve body connector, both the regulator and the safety valve are communicated with the cavity, the regulator is connected to the gas bottle, the valve body connector is provided with a valve nozzle, and the valve nozzle is communicated with the cavity. An air inlet pipe is provided between the burner and the valve body connector, one end of the air inlet pipe is connected to the valve nozzle, another end of the air inlet pipe is connected to the burner. The gas enters the cavity of the valve body connector through the regulator, and enters the air inlet pipe through the valve nozzle.