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Tank-in-tank system

The SISS solar still forms a combination of a heating buffer cylinder and a domestic hot water cylinder. The integration of a wide variety of heat sources is possible without any problems due to the multitude of its connection options using suitable controls.

Product information

  • Large-surface high-performance smooth tube heat exchanger
  • Inner boiler enamelled according to DIN 4753, incl. protective anode
  • Insulation: 100 mm ECO SKIN insulation
  • Optional: installation of a flange-mounted heater (7.5 kw) from above in the domestic hot water tank
  • Cascading with buffer boiler possible
  • Furthermore, a screw-in heating element can be installed in a 1 1/2'' socket as an additional or supplementary heater

All types

Type Part No. Capacity (liters)Capacity BW boiler (liters)Heat exchanger surface (m²)Dimension Height (mm)Dimension Width/Diameter (mm)Download
SISS 500/150 A 364 253501501,91706650
SISS 750/150 A 364 266001502,41773790
SISS 900/200 A 364 277002003,02123790

Reserve technical changes

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