Fresh Water System FWS-4

Simple, solid fresh water technology

Our FWS-4 combines the advantages of fresh water technology in terms of hygiene and comfort with the advantages of a larger buffer volume for the heating system, as the boiler needs to start up much less frequently and therefore requires less fuel. In addition, the buffer tank can be equipped with a heating element. This heating element communicates with the supplied smart meter either via radio or a control line and can thus convert up to 3 kW of PV electricity 1:1 into heat in a fully modulating manner.

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Flow rate: 25 l/min
Storage capacity: 200 + 400 Liter heating water

The advantages of the FWS fresh water system at a glance

Compact unit fully assembled and insulated for minimal losses
Additional buffer volume reduces the number of burner starts required, thereby saving energy.
Heats quickly and reliably exactly as much water as needed
Extremely short response time for fresh water requests
Constant power control even with fluctuating load demands
Can also be equipped with a 3 kW heating element on request

Areas of application for the FWS fresh water system

Ready Rtconnect Ratiotherm Smart Energy Systems Ratiotherm

Ready Power To Heat Ratiotherm Smart Energy Systems Ratiotherm

Heating systems often have to perform two completely different tasks in the home. On the one hand, they provide heat to keep rooms at a comfortable temperature. On the other hand, they heat fresh water for bathing, showering, cooking, and drinking. This is precisely where water – the most important foodstuff – can become a risk. If, as in old boilers, for example, drinking water is used as a heat store, an invisible breeding ground for bacteria and germs develops in the floor area. This is the ideal place for bacteria such as life-threatening Legionella or for a wide variety of fungi, which can also be harmful to health. Drinking water that comes into contact with people should therefore always be heated shortly before use to ensure that it remains hygienic. The fresh water station consists of a buffer filled with 200 or 400 liters of heating water and the efficient compact drinking water station (TWK), which has been tried and tested for many years. In this compact system, a plate heat exchanger works on the counterflow principle, with warm heating water flowing through one side and fresh cold water through the other. The heating water transfers the required heat to the fresh water, heating it precisely and flexibly in exactly the amount required by the user for maximum efficiency, minimum losses, and absolute hygiene in drinking water heating.