Solutions No 04

Hydraulic decoupling and energy storage using a buffer tank.

Secondary potable water heating system using Photovoltaic facility.

Highly efficient vacuum spray tube degassing for system and make-up degassing for optimum energy efficiency and operational facility safety.

Heating systems with higher heat capacity and simultaneous water heating (e.g. school building).

Increase in efficiency: ~10.6%


Storatherm Heat
Storatherm Aqua Load
Compact manifold
Refix / Reflex
Servitec 35
Exvoid T (Solar) / Exdirt
Exdirt V

This chart is merely for illustrating the different connections. It has to be adapted to local conditions and fleshed out.


Hydraulic decoupling

  • The buffer tank Storatherm Heat acts as a hydraulic switch and decouples the heat sources’ primary circuit from the secondary consumer circuit

Membrane rupture sensor

  • Membrane rupture sensor for monitoring the membrane with BMS (recommended from 400 litres) with exchangeable membrane

Storage tank connection

  • Storage tank with electric heating element heated by PV → no space for coiled tube → storage charging system via longtherm heat exchanger


  • Servitec integration in the return flow of the heating system; in direction of flow
  • Distance between supply and return (gas-supply and low-gas connection) Servitec ≥ 500 mm.
  • Integration of Servitec in the facility hydraulics, preferably after the sludge and dirt separator (for additional protection of Servitec).


  • Exdirt V is the ideal solution for using the classic Reflex dirt and sludge separator Exdirt in vertical lines, too.
  • Standard mounting sizes according to series F1 and F2 (DIN 3202-1) according to DIN EN 558: 2012-03 allow for easy installation in existing facilities.

Solution No 05

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