iDM Hygienik

iDM Hygienik

Water is only heated whenever you need it. The water in the Hygienik is only for heating. This means that your hot water for drinking, washing and rinsing is always fresh. The Hygienik is a hot water storage tank and a drinking water heater for all existing heating systems. The Hygienik fresh water system offers you hygienic and convenient fresh water technology.

  • Stainless steel plate heat exchanger – free of non-ferrous metal
  • Saves space – one storage tank for heating and hot water
  • Fresh water technology for hygienic hot water and a high level of convenience
  • Multivalent system for renovation and an integration of solar panels
  • Optimised connections for operation with heat pumps

New for solar systems: Hygienik 825/25 and 35 with mixing valve, layer separation plate and smooth tube heat exchanger 2.8 m2


The Hygienik is a 2-in-1 layered storage tank: hot heating water is available for heating the drinking water in the upper section. The separate, lower section accommodates the buffer storage tank for low-temperature heating. When the hot water in the shower, basin or sink is switched on, a plate exchanger on the outside of the Hygienik system transfers the heat from the heating water to the drinking water; fast and hygienically. Your benefits:
you are using the energy from the heat pump twice, are not affected by Legionella bacteria and can take a relaxing shower or bath. Let your energy supply bring more quality to your life. Its flexibility means it is compatible with any heating system, regardless of whether wood, gas, pellets, solar, heat pump, oil or any combination of different systems; the appropriate connection is available for every system. The iDM layered storage tank technology permits to make improved use of the heat content and therefore helps to reduce emissions to simultaneously increase the service life of your oil or gas tank.

Hygienik layered storage tank with fresh water technology

The Hygienik system ensures a supply of hot water together with hot gas charging technology (HGL). The HGL pipe delivers temperatures of up to 60°C in the upper part of the buffer tank, while the majority of the energy is used for the heating circuit at around 35°C.

The iDM fresh water station (an external plate heat exchanger) ensures a comforting supply of hygienic hot water in a matter of seconds.


The iDM Hygienik is available in several storage tank sizes for a host of areas of application:

Typ Area of application
Hygienik 500 lt. Detached house
Hygienik 825 lt. Solar plants, heat pumps
Hygienik 1000 lt. Solar plants, heat pumps, blocks of flats
Hygienik 1500 lt. Guest houses/bed and breakfast establishments, biomass, heating systems
Hygienik 2000 lt. Construction

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