A gas oven includes an oven cavity, an oven door and a channel. The oven door is configured to provide access to the oven cavity. The channel is located above the oven cavity and includes an inlet in fluid communication with the oven cavity. The channel further includes a first outlet and a second outlet which are in fluid communication with an exterior of the gas oven. The channel is configured to allow gases in the oven cavity to enter the channel through the inlet and exit the channel through any of the first outlet and the second outlet. The first outlet and the second outlet are located higher than the inlet.