Solar thermal energy

100% „Made in Germany“

All-year highly efficient high-vacuum tube collectors


Heat transfer fluid

Heat transfer fluid

S-SOL-VT50 canister 20kg

The high temperature-resistant S-SOL-VT50
„250°C“ is especially designed for vacuum tube collectors. The ready-to-use heat transfer fluid has a frost resistance for up to -28°C.

Heat transfer fluid

S-SOL-VT50 barrel 220kg

The high temperature-resistant S-SOL-VT50
„250°C“ is especially designed for vacuum tube collectors. The ready-to-use heat transfer fluid has a frost resistance for up to -28°C.

Heat transfer fluid

S-SOL-VT100 canister 10kg

The high temperature-resistant S-SOL-VT100
„250°C“ is especially designed for vacuum tube collectors.
It is a concentrate with a frost protection of up to -50°C,
If a specific frost resistance is desired, it can be diluted with deionized water (distilled water).

Solar system cleaner

S-SOL-clean canister 21kg
Cleaning of solar systems (for multiple applications)
Larger quantity on request.

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