FRANK VTP for geothermal energy

Effective geothermal use of the ground in case of limited borehole drilling depth

Our specially developed FRANK VTP® - Vertical Thermpipe is used where conventional geothermal probes can often no longer be used efficiently: In this way, resource-saving geothermal energy can be used even if the borehole depth is limited!
The FRANK VTP® delivers good extraction performance at borehole drilling depths of 6-12 m and, with a service life of more than 100 years, is a long-term investment for the use of renewable energies. The prefabricated elements are easy to install and inexpensive drilling methods such as hollow stem auger can be used.


FRANK VTP® is made entirely of PE 100 and is therefore ideally suited for safe use in the area of ​​groundwater.

VTP Vertical Thermpipe

The benefits of FRANK VTP®:


  • Ideal for shallow drilling depths and for use in areas with groundwater flow
  • High heat extraction rates are possible
  • Extremely fast installation
  • Completely pre-assembled element which can be installed without preparation
  • Small drill diameter required
  • Fixed heat carrier pipe spacing
  • Safe connection of connection pipes with electrofusion welded fittings
  • Pressure-tested with test certificate
  • 6 m , 9 m and 12 m Installation lengths
  • Other lengths on request
  • Inner diameter can be extended as a well
  • Inner diameter can be used for infiltration of rainwater

We are happy to advise you

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