Freshwater module

Particularly hygienic – DHW heating even for larger buildings

A freshwater module provides a method of DHW heating. As its name suggests, the FWS-2 provides you with a direct supply of fresh domestic hot water. This means whenever you need hot water, you simply turn on the tap and water is heated for you through the employment of the instantaneous water heating principle. DHW is not buffered and stored in any cylinder. Of course, the module ensures that the water temperature is hot enough at all times.

WOLF freshwater modules are available with four different output ratings. For both detached houses and apartment blocks, as well as larger commercial premises, such as hotels. The floor-standing FWS-2 is available in four versions with continuous DHW flow rates of 15, 40, 100 and 130 l/min.

In addition, the wall mounted FWS-2-60 has been developed for detached and two-family houses. This is suitable for a system comprising a wall mounted gas or oil condensing boiler with solar thermal system.


For anyone wanting particularly hygienic DHW heating.

The FWS-2 offers you DHW heating, utilising the instantaneous water heating principle. This means the domestic hot water is never stored, but is heated to the right temperature when you turn on the tap. The module is available with four output ratings for use in detached houses and apartment blocks.

  • It is the ultimate hygienic system solution, because you avoid storing large amounts of heated potable water, instead the water is heated directly from the cold water line
  • Well insulated thanks to a thermal insulation cover, which prevents the appliance from cooling down
  • Ready-to-connect complete system for quick and straightforward installation in your system; also with retrofit option
  • Smart – high efficiency pumps on the heating and DHW side help to reduce running costs
  • A freshwater module works particularly well in conjunction with a CHP unit or a solar thermal system

technical drawing
Model / Performance
  • FWS-2


The FWS-2 freshwater module provides an immediate and particularly hygienic supply of DHW.

Convenience, freshness and hygiene are also important when it comes to a DHW supply. The quality of the hot water is particularly high when it is heated by means of a freshwater module in the basement and then used immediately. This means you get hygienically pure domestic hot water – virtually as fresh as spring water.

Relaxed reading at home

Whether you're looking at heating, ventilation or cooling

Whether you're looking at heating, ventilation or cooling – at WOLF we are only satisfied when all these elements come together to provide you with an indoor environment where you can truly relax. We want technology to fit around you, not the other way round.
And because your requirements may change over time, we offer you full control of your heating system, DHW temperature and air change rates with our user friendly devices, intuitive apps, and SmartHome enabled programming units –so your living zone is also your comfort zone.


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