The method of pulsed electrical discharge treatment is environmentally appropriate and effective enough for crushing high strength materials. It is widely used at crushing moulds and cores in the process of cast cleaning, destruction of materials in porcelain and fireproof industry. In this work the schemes and technical calculations are presented for the problem of cleaning tubes of heat exchange apparatus or tubes intended for other applications. The radius of the deposit destruction has been evaluated as well its volume and the method’s productivity. The work may be of interest for specialists in the field of material destruction as well as in the fields of industry where heat exchange apparatus are used.