EKO-CUP S3 (125 – 600 kW)

EKO-CUP S3 steel hot water boilers (heat output range 125 – 600 kW) are engineered to meet heating requirements in the middle to large premises, as well as to be the heat source for manufacturing and processing. The boiler can be configured as a stand alone unit or as a series of modular units.

This product is a synthesis of modern technologies and is presented in high quality materials ready for simple and easy assembly and operation. The fully developed and tested technical solutions applied assure these boilers are safe and reliable. The triple-pass flue gas flow system is a key element of their low energy consumption. The wide range of available control devices, as additional equipment, enables the customer to benefit from a fully automatic direct or remote controlled heating center.



    Built-in turbulators allow better heat transfer from flue gas to boiler water.


    A special feature is the exceptional thermal insulation of the boiler.


    The basic boiler control operates by the operation of a two-burner burner according to the boiler’s default boiler temperature.


    Delivered in parts that allows easy transportation and installation of the boiler.

  • Hot water boilers for central heating systems a with triple-pass flue gas flow system (heat output range 125-600 kW).
  • It is economical and ecologically acceptable, with high efficiency and low NOx levels.
  • Max. operating boiler pressure is 3 bar (standard) or 6 bar (custom made) and max. operating temperature is 90°C (standard), 100°C or 105°C (custom made)..
  • Built in turbulators enable better heat flow from flue gas to water, better regulation of gas flow in the combustion chamber, better regulation of the output temperature of flue gas, i.e. high quality balancing of the functions of the boiler, burner and chimney.
  • A large volume of water in the boiler reduces the number of start ups, prolongs the life of the burner and saves energy.
  • Design and construction provide extremely low start-up condensation.
  • All connections are mounted on the upper side of the unit enabling simple assembly.
  • The boiler is delivered with plugged in thermic regulation together with connecting points for an outdoor temperature controller, which enabling fully automatic operation of the heating system.
  • Basic boiler controller controls the operation of a two-stage burner according to set values for boiler temperature.
  • A special feature is the high performance thermal insulation.
  • Boiler door with blind panel is adequate for installation of all fan burners available on the market and can be opened both to the left and right for 90° which enables simple and fast boiler cleaning.
  • The body of the boiler is delivered separately from the casing and thermal insulation which enables transportation and assembly.



Centrometal d.o.o. shall not be responsible for possible incorrect data caused by error made in transcription and all figures and diagrams are for explanatory purposes only and relevant adjustment have to be made at the spot. In any case, it reserves the right to modify its products as deemed to be required and useful without any prior notification.