Device for cleaning, especially the pipes of the drinking water circuit of an aircraft

Cleaning device (D), for cleaning a drinking water system said device (D) being supplied with liquid, the device comprising:

• a mobile chassis (C);
• a condensing gas boiler comprising a sealed combustion chamber (110), said condensing gas boiler being supported by said mobile chassis;
• gas bottles (210, 220) for supplying gas to said condensing gas boiler in order to supply energy for the production of heat in said condensing gas boiler, said gas bottles being accommodated by said mobile chassis;
• a primary circuit (130) containing a liquid, said liquid of said primary circuit being heated by said condensing gas boiler;
• an exchange subassembly (400);
• and
• an output subassembly (500) capable of being connected to the drinking-water system during cleaning of the drinking-water system, in which said exchange subassembly and said output subassembly contain a treatment liquid for cleaning, and in which the treatment liquid is heated in order to clean by heat exchange with said liquid of said primary circuit in said exchange subassembly.