We produce shell and tube heat exchangers from carbon or stainless steel. Heat exchangers are thermal machines where the heat from one media is transferred to another. In practice, they are used for cooling oil, for steam condensation in central heating systems and as boilers for hot tap water. The heat exchangers can be made from steel or stainless steel. The pipes inside the heat exchanger are according to the TIG welding procedure welded to the flange of the heat exchanger. The heat exchangers are produced in various types: U-shaped, helical, with even pipes, conducting several parallel currents through the heat exchanger.