Ground-air heat exchanger


Ground-air heat exchangers are becoming increasingly popular in the UK, in particular in the Health and Education sectors.  Ventilation is simply drawn through a network of underground pipes (1.5m deep), which pre-cools the sir in the summer and pre-heats the air in the winter.

Typical COP's for this efficient system range from 20-50 for a commercial project and even higher for a domestic project.

CPD covers:

This CPD takes 1 hour, it can be held at the REHAU offices or at customers/clients premises - the choice is yours!

  • Introduction
  • Principles of ground-air heat exchangers
  • Condensation removal, air inlets, pipe requirements
  • Design criteria and REHAU design software
  • Case studies - commercial and domestic


  • RIBA