An exhaust closure system for a cooking oven, wherein said exhaust closure system is interconnectable or interconnected between a top wall of an oven cavity and an exhaust channel, and wherein: - the exhaust closure system comprises a stationary plate and a sliding plate arranged inside a housing and between an inlet opening and an outlet opening, - the stationary plate and the sliding plate lie against each other, - the stationary plate and the sliding plate include at least one opening (26, 28) in each case, - the sliding plate is slidable relating to the stationary plate between a closed state and an opened state, - the at least one opening of the stationary plate is covered by the sliding plate in the closed state, - the at least one opening of the sliding plate is covered by the stationary plate in the closed state, and - the openings (26, 28) of the stationary plate and the sliding plate overlap at least partially in the opened state, characterised in that - the exhaust closure system is provided as a module, - the exhaust closure system comprises a lower casing attachable or attached on the top wall of the oven cavity, - the lower casing includes at least one inlet opening in its bottom side, - the exhaust closure system comprises an upper casing connectable or connected to the exhaust channel, - the upper casing includes at least one outlet opening in its top side, - the lower casing and the upper casing are permanently or detachably jointed and form the housing of the exhaust closure system,- the upper casing includes at least one neck, in which the outlet opening is formed, and - the upper casing is replaceable by other upper casings including necks having different heights and can be adapted to certain types of exhaust channels. - the exhaust closure system comprises a stationary plate and a sliding plate arranged inside a housing and between an inlet opening and an outlet opening, - the stationary plate and the sliding plate lie against each other, - the stationary plate and the sliding plate include at least one opening (26, 28) in each case, - the sliding plate is slidable relating to the stationary plate between a closed state and an opened state, - the at least one opening of the stationary plate is covered by the sliding plate in the closed state, - the at least one opening of the sliding plate is covered by the stationary plate in the closed state, and - the openings (26, 28) of the stationary plate and the sliding plate overlap at least partially in the opened state, - the exhaust closure system is provided as a module, - the exhaust closure system comprises a lower casing attachable or attached on the top wall of the oven cavity, - the lower casing includes at least one inlet opening in its bottom side, - the exhaust closure system comprises an upper casing connectable or connected to the exhaust channel, - the upper casing includes at least one outlet opening in its top side, - the lower casing and the upper casing are permanently or detachably jointed and form the housing of the exhaust closure system,- the upper casing includes at least one neck, in which the outlet opening is formed, and - the upper casing is replaceable by other upper casings including necks having different heights and can be adapted to certain types of exhaust channels.