A kiln includes a stage, a stove, a gas supply assembly, and a combustion device wherein, the stage includes a stage body and a carrier member. The stage body has a first chamber, while the carrier member is detachably disposed at the stage body. The stove is joined to the stage body and has an entry and a second chamber. The gas supply assembly is disposed at the stage body, and part of the gas supply assembly is located in the first chamber. The combustion device is located in the second chamber. The carrier member can be detached from the stage body and be moved out of the stove from the entry so that the first chamber communicates with the second chamber. In this way, the working space inside the kiln can be increased, which is convenient for users to repair and maintain the gas supply assembly or the combustion device.

A portable baking oven has an upper portion and a lower portion that define a baking chamber are disclosed. A baking chamber opening may be defined entirely by the oven upper portion. The upper portion may pivot away from the lower portion to allow access to the interior of the oven for cleaning. The oven may include a gas-powered infrared bottom burner and a gas-powered curved back burner.

A portable baking oven has an upper portion and a lower portion that define a baking chamber are disclosed. A baking chamber opening may be defined entirely by the oven upper portion. The upper portion may pivot away from the lower portion to allow access to the interior of the oven for cleaning. The oven may include a gas-powered infrared bottom burner and a gas-powered curved back burner.

A baking drawer includes an oven cavity and a drawer assembly movable relative to the oven cavity between an extended position, where the drawer assembly is accessible by a user, and a retracted position, where the drawer assembly is located within the oven cavity. The drawer assembly has a bottom wall, two opposing sidewalls and a rear wall. A first vent is formed in the bottom wall, and a second vent is formed in the rear wall. The vents allow air to flow into and out of a ventilated region delineated by the bottom wall, the two sidewalls and the rear wall.

A liftable baking net structure for an oven includes an inner housing, a lifting support mounted inside the inner housing, and a connecting rod mechanism mounted outside the inner housing. A vertical first guide groove is opened in a side wall of the inner housing. The connecting rod mechanism is connected to the lifting support via a connecting member passing through the first guide groove. The connecting rod mechanism drives the lifting support to move vertically along the first guide groove in the housing.

A liftable baking net structure for an oven includes an inner housing, a lifting support mounted inside the inner housing, and a connecting rod mechanism mounted outside the inner housing. A vertical first guide groove is opened in a side wall of the inner housing. The connecting rod mechanism is connected to the lifting support via a connecting member passing through the first guide groove. The connecting rod mechanism drives the lifting support to move vertically along the first guide groove in the housing.

A baking drawer includes an oven cavity and a drawer assembly movable relative to the oven cavity between an extended position, where the drawer assembly is accessible by a user, and a retracted position, where the drawer assembly is located within the oven cavity. The drawer assembly has a bottom wall, two opposing sidewalls and a rear wall. A first vent is formed in the bottom wall, and a second vent is formed in the rear wall. The vents allow air to flow into and out of a ventilated region delineated by the bottom wall, the two sidewalls and the rear wall.

An oven may include inner oven walls defining a cavity. The oven may further include a heating element configured to heat air in the oven. The oven may further include a fan positioned between the rear of the oven and the heating element. The fan may be configured to: draw air from the front of the oven to the rear of the oven; blow the drawn air over the heating element to produce heated air; and distribute the heated air within the oven.

A heat treatment system, comprises a tray holder with at least one tray for placing goods to be heated, a first heat treatment machine having a first heat treatment chamber adapted to accommodate the tray holder, the first heat treatment chamber having a first opening in a base part thereof, and an elevation apparatus configured to transport the tray holder between a first position within the first heat treatment chamber and a second position below the first heat treatment chamber through the first opening.

A heat treatment system, comprises a tray holder with at least one tray for placing goods to be heated, a first heat treatment machine having a first heat treatment chamber adapted to accommodate the tray holder, the first heat treatment chamber having a first opening in a base part thereof, and an elevation apparatus configured to transport the tray holder between a first position within the first heat treatment chamber and a second position below the first heat treatment chamber through the first opening.