A pressure-type alcohol stove includes a stove body, an upper cover, a pre-heating pipe, and an automatic liquid-feeding device, wherein the upper cover is arranged on the stove body and is matched with the stove body to form a vaporization cavity, the pre-heating pipe penetrates through the upper cover and has a bottom end located in the stove body and a top end partially stretching out of the upper cover, a pre-heating cavity is formed around the pre-heating pipe, spirally-distributed spray holes are formed through the upper cover, air jet holes used for air jetting and pre-mixing are formed through an upper part of in the pre-heating pipe.

The present disclosure includes: a casing with an open top; a combustion compartment including: a combustion chamber disposed inside the casing to generate a blue flame-shaped flame by burning vegetable oil; a combustion cover enclosing the combustion chamber therein, and having an inner wall spaced apart from an outer wall of the combustion chamber by a predetermined distance to form a predetermined cavity; and an air chamber disposed below the combustion cover with a lower end of the combustion chamber being positioned above, wherein the air chamber supplies outside air toward the combustion chamber during combustion of the vegetable oil; an oil tank that supplies the vegetable oil to the combustion chamber; and a control unit that controls whether or not to drive the air chamber, the flow and supply pressure of the outside air, and whether or not to supply the vegetable oil and a supply amount of the vegetable oil.

The present disclosure includes: a casing with an open top; a combustion compartment including: a combustion chamber disposed inside the casing to generate a blue flame-shaped flame by burning vegetable oil; a combustion cover enclosing the combustion chamber therein, and having an inner wall spaced apart from an outer wall of the combustion chamber by a predetermined distance to form a predetermined cavity; and an air chamber disposed below the combustion cover with a lower end of the combustion chamber being positioned above, wherein the air chamber supplies outside air toward the combustion chamber during combustion of the vegetable oil; an oil tank that supplies the vegetable oil to the combustion chamber; and a control unit that controls whether or not to drive the air chamber, the flow and supply pressure of the outside air, and whether or not to supply the vegetable oil and a supply amount of the vegetable oil.

A system for selectively enclosing an appliance is provided. The system includes a first device and a second device. The first device detects whether a first door is in a fully open configuration. When the first door is in the fully open configuration, the first device sets the appliance into an operational mode. When the first door is not in the fully open configuration, the first device sets the appliance into a limited mode. The second device includes a locking device and detects whether the appliance is in a working mode. When the appliance is in the working mode, the second device engages the locking device to prevent a motion of the first door away from the fully open configuration. When the appliance is not in the working mode, the second device disengages the locking device to allow the motion of the first door.

A system for selectively enclosing an appliance is provided. The system includes a first device and a second device. The first device detects whether a first door is in a fully open configuration. When the first door is in the fully open configuration, the first device sets the appliance into an operational mode. When the first door is not in the fully open configuration, the first device sets the appliance into a limited mode. The second device includes a locking device and detects whether the appliance is in a working mode. When the appliance is in the working mode, the second device engages the locking device to prevent a motion of the first door away from the fully open configuration. When the appliance is not in the working mode, the second device disengages the locking device to allow the motion of the first door.

A fuel-fired heater can include a fuel tank; a housing assembly supported by the fuel tank, the housing assembly defining a chamber having an inlet and an air outlet; a fan located within the housing assembly; an air pump located within the housing assembly; an electric motor coupled to at least one of the fan and the air pump; a burner assembly located within the housing assembly, the burner assembly including a burner nozzle in fluid communication with the air pump and the fuel tank via a fuel line, and including an ignitor; and an electronic controller operating the electric motor and ignitor, the electronic controller including a proximity sensor oriented and arranged to sense an object located in front of the air outlet, wherein the electronic controller deactivates the electric motor when an object is sensed by the proximity sensor within a predetermined distance for a predetermined time period. In some examples, the heater includes a carbon monoxide sensor oriented and arranged to sense an ambient carbon monoxide level proximate the heater, wherein the electronic controller closes the fuel shut-off valve when a sensed carbon monoxide level exceeds a predetermined threshold for a predetermined period of time, for example 180 seconds. In some examples, the heater includes a fuel shut-off valve oriented and arranged to control fuel flow in the fuel line, wherein the electronic controller deactivates the heater by first activating the fuel shut-off valve to block flow through the fuel line and subsequently deactivating the electric motor after a predetermined time period.

A fuel-fired heater can include a fuel tank; a housing assembly supported by the fuel tank, the housing assembly defining a chamber having an inlet and an air outlet; a fan located within the housing assembly; an air pump located within the housing assembly; an electric motor coupled to at least one of the fan and the air pump; a burner assembly located within the housing assembly, the burner assembly including a burner nozzle in fluid communication with the air pump and the fuel tank via a fuel line, and including an ignitor; and an electronic controller operating the electric motor and ignitor, the electronic controller including a proximity sensor oriented and arranged to sense an object located in front of the air outlet, wherein the electronic controller deactivates the electric motor when an object is sensed by the proximity sensor within a predetermined distance for a predetermined time period. In some examples, the heater includes a carbon monoxide sensor oriented and arranged to sense an ambient carbon monoxide level proximate the heater, wherein the electronic controller closes the fuel shut-off valve when a sensed carbon monoxide level exceeds a predetermined threshold for a predetermined period of time, for example 180 seconds. In some examples, the heater includes a fuel shut-off valve oriented and arranged to control fuel flow in the fuel line, wherein the electronic controller deactivates the heater by first activating the fuel shut-off valve to block flow through the fuel line and subsequently deactivating the electric motor after a predetermined time period.

A safety knob assembly for actuating a burner is provided. The safety knob assembly includes a dial, the dial includes at least one alignment hole, an interlock disk, the interlock disk includes at least one locking pin, the at least one locking pin having an outer diameter less than then the inner diameter of the at least one alignment hole, a safety post, the safety post connected to the dial and the safety post including a locking hub, the locking hub connected to a switch post, a spring, the spring sized such that the inner diameter of the spring is larger than the outside diameter of the safety post, the spring positioned on the safety post and positioned between the dial and the locking post, wherein the at least one locking pin of the interlock disk engages the at least one alignment hole of the dial as a bottom surface of the dial approaches a top surface of the interlock disk, wherein the interlock disk engages the locking hub as a bottom surface of the interlock disk approaches the locking hub, and wherein the burner is actuated as the dial, the interlock disk, the safety post and the locking hub are positioned to rotate the switch post relative to the burner to allow the flow of energy from an energy source to the burner.

In an aspect, data characterizing an instruction for an activation of an igniter and an operating mode of a smoke generator that includes the igniter can be received. A first amount of energy required for an ignition of a fuel source by the igniter can be determined based on the operating mode characterized by the received data. The igniter can be caused to activate based on the received data. A second amount of energy, output by the igniter over a period of time during which the igniter is activated, can be determined. A determination of whether the second amount of energy exceeds the first amount of energy can be made. The igniter can be caused to deactivate in response to a determination that the second amount of energy exceeds the first amount of energy. Related systems, apparatus, techniques, and articles are also described.

In an aspect, data characterizing an instruction for an activation of an igniter and an operating mode of a smoke generator that includes the igniter can be received. A first amount of energy required for an ignition of a fuel source by the igniter can be determined based on the operating mode characterized by the received data. The igniter can be caused to activate based on the received data. A second amount of energy, output by the igniter over a period of time during which the igniter is activated, can be determined. A determination of whether the second amount of energy exceeds the first amount of energy can be made. The igniter can be caused to deactivate in response to a determination that the second amount of energy exceeds the first amount of energy. Related systems, apparatus, techniques, and articles are also described.