The present invention relates to a flow measurement system for controlling a gas fireplace (1) comprising a flow passage (11) in fluid communication with the gas fireplace by use of a differential pressure pressostat (13). A first gauge connector (14) is in the flow passage and connected to a first pressure sensor in the differential pressure pressostat for measuring a total pressure in a fluid flowing in the flow passage. A second gauge connector (15) is arranged near the first gauge connector and connected to a second pressure sensor in the differential pressure pressostat for measuring a static pressure in the fluid flowing in the flow passage. Based on these measures a dynamic pressure, and there from the flow velocity, in the fluid flowing in the flow passage is determined and used to switch off the gas fireplace, when the flow becomes below a set threshold value.

A kiln including a stove and a heat source wherein the stove includes a cavity, an entry, and an air outlet. The cavity includes a front section communicating with the entry, a rear section disposed away from the entry, and a middle section disposed between the front section and the rear section. A top wall surface of the front section tilts downwardly toward the entry, and a top wall surface of the rear section tilts downwardly from the middle section toward a direction away from the entry. The air outlet is located between a top of the front section and the entry. The heat source is disposed in the rear section and includes a heating assembly for generating heat. The heating assembly is located at a position higher than a half of a distance between a top and a bottom of the middle section of the cavity.

A kiln including a stove, a housing, an exhaust pipe and a heat source is disclosed. The stove includes a cavity, an entry, and an air outlet. The housing includes a cover and a front plate and disposed outside of the stove, wherein the front plate is joined to a front end of the cover and disposed at a front side of the stove; the front plate and the stove are spaced apart with a gap. The exhaust pipe passes through the cover and communicates with the air outlet and an exterior of the cover. The heat source is adapted to heat the cavity. With the gap between the front plate and the stove, a thermal insulation effect capable of protecting a user from being burned is provided.

An appliance comprising a firebox, a first air duct and a room air chimney. During operation of the appliance heated room air adjacent to a viewing pane or the screen and heated room air from the first air duct is received within the chimney. The heated air within the chimney rises toward an open upper end causing the chimney to draw additional room air from adjacent to the viewing pane or screen.

Various embodiments disclosed herein provide for a variable exhaust oven that can modify an exhaust rate of an exhaust fan of the oven based on the firing rate or burn rate of a burner of the oven while still complying with safety regulations. By reducing the exhaust rate of the variable exhaust oven when the burn rate decreases, the variable exhaust oven can save costs by reducing the thermal energy lost due to unnecessary removal of air from the oven, and can lower electrical costs by operating the exhaust fan at a lower speed. The burn rate of the burner is controlled based on a temperature within the variable exhaust oven. A flame safety controller, or other controller, of the variable exhaust oven can control the exhaust rate of the exhaust fan (fan speed and/or damper adjustment) based on the burn rate of the burner.

A shelf supporting apparatus and a cooking appliance including a shelf supporting apparatus are provided. The shelf supporting apparatus may include a pair of fixing frames provided to face each other on opposite sides of a chamber which is opened and closed by a door; a pair of supports provided to have a length which is changeable in a frontward-rearward direction, the pair of supports being, respectively, coupled to the pair of fixing frames and having a shelf mounted thereon; coupling members provided on the pair of fixing frames and coupling the pair of supports to the pair of fixing frames to be position-changeable in the frontward-rearward direction; and a pair of connecting members that, respectively, connects the pair of supports and the door, and changing positions of the pair of supports in the frontward-rearward direction in conjunction with a rotation of the door.

The present invention relates to a flow measurement system arranged for controlling a gas fireplace (1). It comprises a flow passage (11) in fluid communication with the gas fireplace to be controlled by use of a differential pressure pressostat (13). A first gauge connector (14) is arranged in the flow passage and connected to a first pressure sensor in the differential pressure pressostat for measuring a total pressure in a fluid flowing in the flow passage. A second gauge connector (15) is arranged near the first gauge connector and connected to a second pressure sensor in the differential pressure pressostat for measuring a static pressure in the fluid flowing in the flow passage. Based on these measures a dynamic pressure, and there from the flow velocity, in the fluid flowing in the flow passage is determined. This parameter is used to switch off the gas fireplace, when the flow becomes below a set threshold value. The second gauge connector (15) is arranged within a space defined by a surrounding wall (16) having at least one opening (17) facing towards the first gauge connector. The surrounding wall and the at least one opening is dimensioned and shaped so that the static pressure in the space is the same or substantially the same as around the first gauge connector, and there is no or substantially no flow of fluid in the space. Hereby the formation of water droplets on the second gauge connector is prevented, whereby a more reliable and fault-safe system is obtained.

A kiln including a stove and a heat source wherein the stove includes a cavity, an entry, and an air outlet. The cavity includes a front section communicating with the entry, a rear section disposed away from the entry, and a middle section disposed between the front section and the rear section. A top wall surface of the front section tilts downwardly toward the entry, and a top wall surface of the rear section tilts downwardly from the middle section toward a direction away from the entry. The air outlet is located between a top of the front section and the entry. The heat source is disposed in the rear section and includes a heating assembly for generating heat. The heating assembly is located at a position higher than a half of a distance between a top and a bottom of the middle section of the cavity.

A kiln including a stove, a housing, an exhaust pipe and a heat source is disclosed. The stove includes a cavity, an entry, and an air outlet. The housing includes a cover and a front plate and disposed outside of the stove, wherein the front plate is joined to a front end of the cover and disposed at a front side of the stove; the front plate and the stove are spaced apart with a gap. The exhaust pipe passes through the cover and communicates with the air outlet and an exterior of the cover. The heat source is adapted to heat the cavity. With the gap between the front plate and the stove, a thermal insulation effect capable of protecting a user from being burned is provided.

An appliance comprising a firebox, a first air duct and a room air chimney. During operation of the appliance heated room air adjacent to a viewing pane or the screen and heated room air from the first air duct is received within the chimney. The heated air within the chimney rises toward an open upper end causing the chimney to draw additional room air from adjacent to the viewing pane or screen.