Oskar° 08 stratified storage tank

Endless possibilities: maximum flexibility

With Oskar° 08, homeowners don’t have to forego the flexible advantages of an Oskar° stratified storage tank, even if space is limited. Oskar° 08 is ideal for semi-detached houses, terraced houses, and single-family homes with a floor space of up to approx. 200 square meters.

Volume flow: max. 1.5 m³/h

Storage volume:
500 – 1,000 liters up to 30 kW
Heat generator

The advantages of the Oskar° 08 stratified storage tank at a glance:

  • Stratification requires less energy at different withdrawal temperatures, as heat only needs to be generated at the required level.
  • Completely pre-assembled hydraulic module in various configurations significantly reduces installation time
  • Storage tank designed as a heat pump storage tank for efficient integration of modulating heat generators
  • The central controller integrated in the hydraulic module with ready-to-connect plugs saves a lot of time during electronic work and largely eliminates incorrect wiring.
  • The hydraulic connection of generators can be made from the right and/or left.
  • Oskar° 08 is already prepared for increasingly important cooling (passive or active).

Technical Specifications for the Oskar° 08 Stratified Storage Tank

Typ Oskar° 08500 l750 l1000 l
Flow rate1500 l/h1500 l/h1500 l/h
Overall height without insulation1718 mm1735 mm2115 mm
Overall height with insulation1838 mm1855 mm2235 mm
Diameter without insulation650 mm790 mm790 mm
Diameter with insulation890 mm1033 mm1030 mm
Length of storage tank including connection spigots774 mm915 mm915 mm
Weight without insulation120 kg140 kg155 kg
Max. tilt dimension1840 mm1870 mm2230 mm
Dimensional tolerances+/- 10 mm+/- 10 mm+/- 10 mm
Max. operating pressure3 bat3 bat 3 bat
Storage tank connections at the front8 x DN 258 x DN 258 x DN 25
Tank materialSt 37-2 / S235JR / P265GHSt 37-2 / S235JR / P265GHSt 37-2 / S235JR / P265GH
Dimensions of hydraulic module700 x 1861 x 193 BxHxT (mm)700 x 1861 x 193 BxHxT (mm)700 x 1861 x 193 BxHxT (mm)

Areas of application for Oskar° 08 stratified storage tanks

Ready Hybrid Ratiotherm Smart Energy Systems Ratiotherm
Ready Rtconnect Ratiotherm Smart Energy Systems Ratiotherm
Power To Cool Ready ratiotherm Smart Energy Systems
Ready Power To Heat Ratiotherm Smart Energy Systems Ratiotherm

Oskar° 08 is ideal for use in combination with space-saving, wall-mounted oil and gas condensing boilers, heat pumps, automatic pellet boilers, and other water-based heat generators up to 15 kW. Of course, Oskar° 08 also increases the efficiency of a solar system. The Oskar° 08 stratified storage tank is available exclusively as a package in sizes 500 L, 750 L, or 1000 L.

The system features an extremely compact design. Thanks to the plug-and-play installation, the hydraulics and associated control system can be installed in no time at all. Once the Oskar° 08 stratified storage tank has been placed in the boiler room, all that is required is to attach a pre-assembled and wired hydraulic module (weighing approx. 80 kg) and connect it to the eight connections at the base of the stratified storage tank. Finally, the last connections to the controller are made using the coded plugs – and the installation is complete!

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Stephan Weinzierl Ratiotherm

Stephan Weinzierl

International sales

+49 (0) 8422 9977-70 | info@ratiotherm.de

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