VITOPURE S3: soft water throughout your home

Viessmann S3 filters soften your domestic water by extracting minerals like calcium or magnesium to  prevent limescale and to increase the lifetime of your water-using appliance. At the same time, soft water is ideal for hair and skin care. S3 filters are high-capacity devices which are available at two or three cubic metre flow rate per hour.

Benefits at a glance:

  • Reduces water hardness by filtering minerals like calcium and magnesium
  • Prevents scaling and increases the lifetime of home appliances
  • Protects skin and hair
  • High capacity filters for constant soft water supply
  • Auto-program for easy operation

Resin and salt for filtering and regeneration

Viessmann water softeners work through a process called ion exchange which eliminates minerals like calcium and magnesium from the water. Resin neutralizes the minerals. Given its smooth surface, it makes water purifiers run efficiently for a long time. Adding salt to the purifier enables the regeneration of resin - minerals are flushed away with waste water.


Check the dimensions of VITOPURE S3 in the following overview.



Technical data

  S3-2T S3-3T
Flow rate 2 m3 per hour 3 m3 per hour
Working pressure 0.1-0.65 MPa
Inlet/outlet connection DN 20
Drainage pipe connection DN 15
Working temperature 1-39 °C
Working temperature AC 220-240V, 95 Hz
Power output DC 12V-650mA