A circulating fluidized bed boiler is described, comprising a furnace, a loopseal, and a loopseal heat exchanger arranged in the loopseal. The loopseal heat exchanger comprises walls limiting an interior of the loopseal heat exchanger, a first particle outlet for letting out particulate material from the loopseal heat exchanger, an inlet for receiving bed material, heat exchanger tubes arranged in the interior of the loopseal heat exchanger, and a first ash removal channel configured to let out ash from the loopseal heat exchanger. An ash cooler is configured to receive ash from the first ash removal channel. In the loopseal heat exchanger the first ash removal channel is arranged at a lower level than the first particle outlet.

A cooking or baking oven can include a hood having a vent outlet and a cooking chamber having a rack positioned therein. The cooking or baking oven can also include a heating chamber separated from the cooking chamber, a fuel burner, a fuel burner blower operably coupled to the fuel burner, a burner tube having an inlet end and an outlet end, the inlet end coupled to the fuel burner, and a flue having an inlet end coupled to the outlet end of the burner tube and an outlet end coupled to the hood, the flue having an opening. The cooking or baking oven can also include a damping system having a damper lid coupled to the flue, the damper lid moveable between an open position and a closed position, the damper lid in the closed position covering the opening; a damper motor; and a damper arm coupled to the damper lid and the damper motor, the damper motor rotatably moving the damper arm to move the damper lid between the open and closed positions. Related systems and methods are also provided.

A cooking or baking oven can include a hood having a vent outlet and a cooking chamber having a rack positioned therein. The cooking or baking oven can also include a heating chamber separated from the cooking chamber, a fuel burner, a fuel burner blower operably coupled to the fuel burner, a burner tube having an inlet end and an outlet end, the inlet end coupled to the fuel burner, and a flue having an inlet end coupled to the outlet end of the burner tube and an outlet end coupled to the hood, the flue having an opening. The cooking or baking oven can also include a damping system having a damper lid coupled to the flue, the damper lid moveable between an open position and a closed position, the damper lid in the closed position covering the opening; a damper motor; and a damper arm coupled to the damper lid and the damper motor, the damper motor rotatably moving the damper arm to move the damper lid between the open and closed positions. Related systems and methods are also provided.

A cooking or baking oven can include a hood having a vent outlet and a cooking chamber having a rack positioned therein. The cooking or baking oven can also include a heating chamber separated from the cooking chamber, a fuel burner, a fuel burner blower operably coupled to the fuel burner, a burner tube having an inlet end and an outlet end, the inlet end coupled to the fuel burner, and a flue having an inlet end coupled to the outlet end of the burner tube and an outlet end coupled to the hood, the flue having an opening. The cooking or baking oven can also include a damping system having a damper lid coupled to the flue, the damper lid moveable between an open position and a closed position, the damper lid in the closed position covering the opening; a damper motor; and a damper arm coupled to the damper lid and the damper motor, the damper motor rotatably moving the damper arm to move the damper lid between the open and closed positions. Related systems and methods are also provided.

A cooking or baking oven can include a hood having a vent outlet and a cooking chamber having a rack positioned therein. The cooking or baking oven can also include a heating chamber separated from the cooking chamber, a fuel burner, a fuel burner blower operably coupled to the fuel burner, a burner tube having an inlet end and an outlet end, the inlet end coupled to the fuel burner, and a flue having an inlet end coupled to the outlet end of the burner tube and an outlet end coupled to the hood, the flue having an opening. The cooking or baking oven can also include a damping system having a damper lid coupled to the flue, the damper lid moveable between an open position and a closed position, the damper lid in the closed position covering the opening; a damper motor; and a damper arm coupled to the damper lid and the damper motor, the damper motor rotatably moving the damper arm to move the damper lid between the open and closed positions. Related systems and methods are also provided.

An exhaust extraction system for a train is disclosed. The system includes: a stationary duct having a duct wall that defines a plurality of openings; a suction source for creating suction in the interior of the stationary duct; at least one cover flap covering the plurality of openings; a guide track extending longitudinally in spaced parallel relation to the stationary duct; and a carriage that is movable along the guide track. The carriage includes an exhaust duct having an outlet at a first end and an inlet at a second opposite end, the inlet for receiving exhaust gas from a locomotive, and a support frame for supporting the exhaust duct in a fixed vertical position. The carriage is operable to move the at least one cover flap to uncover one or more of the plurality of openings that align with the outlet as the carriage moves along the guide track.

A water heater venting system, the water heater venting system comprising a main exhaust vent; and a first water heater in communication with a second water heater. The first water heater including an inlet, a blower assembly including a motor, an exhaust vent coupled to the main exhaust vent, a fluid flowpath created by fluid communication between the inlet, the blower assembly, and the exhaust vent, a sensor positioned along the fluid flowpath, and a controller electrically coupled to the sensor and the motor of the blower assembly, the controller controlling the speed of the motor based on at least one of an input from the sensor and an input from the second water heater.

A water heater venting system, the water heater venting system comprising a main exhaust vent; and a first water heater in communication with a second water heater. The first water heater including an inlet, a blower assembly including a motor, an exhaust vent coupled to the main exhaust vent, a fluid flowpath created by fluid communication between the inlet, the blower assembly, and the exhaust vent, a sensor positioned along the fluid flowpath, and a controller electrically coupled to the sensor and the motor of the blower assembly, the controller controlling the speed of the motor based on at least one of an input from the sensor and an input from the second water heater.

The invention relates to an arrangement (1) including two burners (10), which has a common exhaust gas guiding device (2) and a common supply device (3) for combustion air. A backflow barrier (4) blocks a flow of a gaseous medium in a flow direction and is arranged in the exhaust gas guiding device (2) or in the supply device (3). The backflow barrier (4) has an opening (40) and a movable element (41) which is movable between two positions. The opening (40) is open in case the movable element (41) is in one of the two positions and closed in case the movable element (41) is in another of the two positions.

The invention relates to an arrangement (1) including two burners (10), which has a common exhaust gas guiding device (2) and a common supply device (3) for combustion air. A backflow barrier (4) blocks a flow of a gaseous medium in a flow direction and is arranged in the exhaust gas guiding device (2) or in the supply device (3). The backflow barrier (4) has an opening (40) and a movable element (41) which is movable between two positions. The opening (40) is open in case the movable element (41) is in one of the two positions and closed in case the movable element (41) is in another of the two positions.