Systems and methods of a pellet-fired heating include a system having a combustion chamber in which combustion gas is generated from fuel pellets. The combustion chamber includes a fuel inlet for receiving fuel pellets into the combustion chamber, an air inlet for receiving air into the combustion chamber, and a combustion gas outlet for discharging combustion gas from the combustion chamber. The system further includes a first radiator extending into a space to be heated having an internal passage in fluid communication with the combustion chamber, via the combustion gas outlet, and one or more discharge outlets for discharging the combustion gas from the internal passage into the space. A blower of the system is configured to push air into the combustion chamber via the air inlet and push the combustion gas from the combustion chamber into the internal passage of the first radiator.

The present disclosure discloses a secondary combustion with a combustion speed adjustment function, including an outer barrel and an inner barrel; the inner barrel is provided with a combustion cavity; the outer barrel is provided with a first air inlet hole; the inner barrel is provided with a second air inlet hole; a ventilation clearance is reserved between the inner barrel and the outer barrel; a waste tray is arranged in the ventilation clearance; a plurality of third air inlet holes are arranged above the combustion cavity; an adjustment valve is arranged at a lower end of the outer barrel; and supporting legs are arranged on a lower end surface of the outer barrel.

The present disclosure discloses a secondary combustion with a combustion speed adjustment function, including an outer barrel and an inner barrel; the inner barrel is provided with a combustion cavity; the outer barrel is provided with a first air inlet hole; the inner barrel is provided with a second air inlet hole; a ventilation clearance is reserved between the inner barrel and the outer barrel; a waste tray is arranged in the ventilation clearance; a plurality of third air inlet holes are arranged above the combustion cavity; an adjustment valve is arranged at a lower end of the outer barrel; and supporting legs are arranged on a lower end surface of the outer barrel.

Disclosed is a secondary combustion structure of a smokeless stove. The secondary combustion structure includes: a stove body, a combustion disc and an inner wall arranged in the stove body, several separated first ventilation holes are provided in the combustion disc, a heating chamber is defined by the inner wall and the stove body, several second ventilation holes are provided in the inner wall, and an air inlet hole is further provided in the stove body. With the design, heated air flows out of the second ventilation holes to support combustion of combustible gas, further secondary combustion is achieved, a combustible is combusted more sufficiently, and smoke is reduced; and moreover, a top of the stove body is inclined towards the inner wall, so as to increase a flow speed of the heated gas, and increase a fire behavior of the combustible.

Disclosed is a secondary combustion structure of a smokeless stove. The secondary combustion structure includes: a stove body, a combustion disc and an inner wall arranged in the stove body, several separated first ventilation holes are provided in the combustion disc, a heating chamber is defined by the inner wall and the stove body, several second ventilation holes are provided in the inner wall, and an air inlet hole is further provided in the stove body. With the design, heated air flows out of the second ventilation holes to support combustion of combustible gas, further secondary combustion is achieved, a combustible is combusted more sufficiently, and smoke is reduced; and moreover, a top of the stove body is inclined towards the inner wall, so as to increase a flow speed of the heated gas, and increase a fire behavior of the combustible.

A solid fuel burning cabinet circular heating appliance achieves improved emissions performance by providing a secondary air combustion path that preheats secondary combustion air. The firebox is selectively insulated such that areas of the firebox that do not preheat combustion air retain heat in the firebox while areas of the firebox that transfer heat into the combustion air transfer heat through the firebox into the incoming combustion air. The exhaust air path from the firebox to a chimney is also uninsulated to allow relatively quick heat transfer into a room in which the appliance is installed

A burning stove includes a stove body, a front seat, a door, a rear seat, a top cover, and a baffle. The baffle divides the stove body into an air inlet chamber and a combustion chamber. The door is provided with first air inlet holes and second air inlet holes. The baffle is provided with first air holes. The baffle is provided with an air guide port and an air guide face. First partial air flows backward in the air inlet chamber, flows through the air guide port and the air guide face, and flows upward into the combustion chamber, and second partial air in the air inlet chamber flows through the first air holes into the combustion chamber. The first partial air and the second partial air form a vortex air flow in the combustion chamber.

Process and device for improving of synthesis and/or flue gas velocity field solves technical problem of local increase of velocity and resulting non-homogeneous flue gas field resulting in uneven temperature and concentration distribution within flue gas field by providing for homogenization of flue gas field using strategically placed obstacles in the flow field such as flaps or similar devices.

Process and device for improving of synthesis and/or flue gas velocity field solves technical problem of local increase of velocity and resulting non-homogeneous flue gas field resulting in uneven temperature and concentration distribution within flue gas field by providing for homogenization of flue gas field using strategically placed obstacles in the flow field such as flaps or similar devices.

A combustion tube assembly of a water heater includes a combustion tube having an open end, a closed end, and an outflow opening located between the open end and the closed end. A cavity of the combustion tube provides a chamber for a combustion of a water heater fuel that produces an exhaust gas that flows down toward the closed end. The combustion tube assembly further includes a diverter structure positioned inside the combustion tube to divert the exhaust gas such that the exhaust gas flows toward the closed end on a first side of the diverter structure and flows from the first side of the diverter structure to the second side of the diverter structure through a flow opening proximal to the closed end. The outflow opening provides an outlet for the exhaust gas that flows to the second side of the diverter structure to exit the combustion tube.