Manufacturer and turn-key supplier of
geothermal system components
Antifreeze / Glycol

Terra Gelu Heat Transfer Fluid „N“

The conventional geothermal brine medium for industrial plants is a clear, viscous liquid. Terra Gelu Heat Transfer Fluid "N" is free from nitrite, borax and CMR (carcinogenic, mutagenic and reprotoxic).

Mixing chart in volume percent:

Frost protection: Water: Terra Gelu N:
-10 °C 79 21
-20 °C 65 35
-30 °C 56 44

Terra Gelu Heat Transfer Fluid „L“

The glycol brine medium for near-food applications is a clear viscous liquid, characterized by special inhibitors and the high boiling point. It is especially suitable for hot water heating systems, ground collectors and other external circuits in connection with heat pumps and solar systems.

Mixing chart in volume percent:

Frost protection: Water: Tera Gelu L:
-10 °C 73 27
-20 °C 61 39
-30 °C 53 47

  

Data sheets: