The Fresh water hygiene combination storage tank FK This system combines a heating buffer storage tank and hygienic domestic hot water heating. Hot water is supplied via an integrated stainless steel corrugated pipe using a flow-through principle, thus preventing stagnant drinking water. The storage tank is universally applicable and designed for operation with various heat generators.

Highlights

• Hygienic drinking water heating using the flow-through principle

• Stainless steel corrugated pipe made of material 1.4404

• Storage container made of high-quality steel S235JRG2

• Can be combined with solar, heat pump, wood, gas & Pellet boilers

• Preparation for electric heating element is present.

• Various insulation options (EPS/rigid PU foam) are available.

Areas of application

Suitable for:

• Single-family and multi-family homes

• Heating system modernization & New building

• Systems with solar thermal energy or heat pump

• skilled trades & Installation companies

Not suitable for:

• Pure drinking water storage tanks without heating connection

• Systems without buffer storage requirements

Technical data

• Storage capacity: 200–2000 liters (depending on type)

• Drinking water heat exchanger: Stainless steel corrugated pipe 1.4404, max. 10 bar

• Operating pressure of storage tank: max. 5 bar

• Maximum operating temperature: 95 °C

• Connection for electric heating element: 1½" internal thread (depending on size)

• Insulation:

  • EPS 100 mm (efficiency class C)

  • EPS 130 mm (Efficiency class B)

  • PU rigid foam 150 mm (efficiency class A)

Scope of delivery

• Fresh water hygiene combination storage tank FK

• Integrated stainless steel corrugated pipe

• Selected insulation

• Ready for assembly

Conclusion

The FK combination storage tank is a space-saving, hygienic solution for modern heating systems. It offers high flexibility for private homeowners as well as professional installers and meets current requirements for efficiency and drinking water hygiene.