The invention relates to a heatable high-pressure cleaning device (10) having a chassis (24) and a housing lower part (12) arranged on the chassis (24), in which a motor (76) and a pump (80) driven by the motor (76) for pressurizing of water are arranged, and with a fuel-operated heat exchanger (28) for heating the water and a fuel tank (32) for storing liquid fuel for the heat exchanger (28). In order to further develop the heatable high-pressure cleaning device (10) in such a way that it has high mechanical stability and can be produced cost-effectively, it is proposed that the fuel tank (32) be designed as a one-piece plastic hollow body which forms the lower housing part (12) and is attached to a rigid support frame ( 110) is held, the support frame (110) forming a shock protection which at least partially surrounds the fuel tank (32) in the circumferential direction.
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