A pellet burner includes: a burner body having a combustion chamber and an open top; a feed opening at a sidewall of the burner body; a through port under the burner body; and a grate structure above the through port and including two tiers of supports both secured to the burner body. Supports in the first tier are lower than the adjacent supports in the second tier. The second tier of supports are staggered with the first tier. A passage is between the two tiers of supports. The passage is narrower than a diameter D of the pellet fuel. A spacing between two adjacent supports in the second tier is greater than D but smaller than 2D. The feed opening is above the grate structure by no less than 3D. The pellet fuel drops from the feed opening. Air entering via the through port disperses the burnt pellet fuel ash.

Disclosed is an oven, applied for baking a pizza, including: a casing, a side cover, a driven panel, and a temperature sensor. The casing is provided with a baking tray, a combustion chamber and a feeding chamber, the baking tray is arranged on one side of the combustion chamber, the combustion chamber is communicated with the feeding chamber, the feeding chamber is provided with a feeding mechanism, and the feeding mechanism can transport a fuel into the combustion chamber. A lower end of the side cover is hinged with the casing. The driven panel is arranged on an outer wall of the casing, the driven panel is electrically connected to the feeding mechanism. The temperature sensor is arranged in the casing, the temperature sensor is electrically connected to the driven panel.

Disclosed is an oven, applied for baking a pizza, including: a casing, a side cover, a driven panel, and a temperature sensor. The casing is provided with a baking tray, a combustion chamber and a feeding chamber, the baking tray is arranged on one side of the combustion chamber, the combustion chamber is communicated with the feeding chamber, the feeding chamber is provided with a feeding mechanism, and the feeding mechanism can transport a fuel into the combustion chamber. A lower end of the side cover is hinged with the casing. The driven panel is arranged on an outer wall of the casing, the driven panel is electrically connected to the feeding mechanism. The temperature sensor is arranged in the casing, the temperature sensor is electrically connected to the driven panel.