High-pressure cleaning appliance with movable channel constriction section

High-pressure cleaning appliance, comprising:

• a heatable heat exchanger for heating up a liquid dispensable by the high-pressure cleaning appliance,
• a blower with a flow channel connected thereto for supplying combustion air to the heat exchanger, and
• a setting member for setting an amount of combustion air suppliable to the heat exchanger,
• the setting member having a channel constriction section which is positionable in the flow channel and movable relative thereto for changing a free cross-sectional area of the flow channel,
• the channel constriction section being configured so as to be slidingly displaceable relative to the flow channel,
• a locking device for releasably locking the channel constriction section relative to the flow channel,
• a setting device for enabling displacement of the channel constriction section when the locking device is in a release position,
• the setting device comprising a setting section coupled to the channel constriction section, the setting section comprising a plurality of setting elements, the plurality of setting elements each having a contact surface oriented transversely to a direction of displacement of the channel constriction section and being spaced from one another along the direction of displacement of the channel constriction section, and
• the setting section being located outside of the flow channel.