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Thermal Response Tests (TRT)

A Thermal Response Test (TRT) measures the thermal conductivity of the ground at a specific location.

By carrying out a TRT we are able to accurately predict the performance of the ground at the proposed location of the ground source heat pump. Our bespoke TRT rig can fit into a borehole and run the test for a period of up to four days. Typically, on larger systems we are able to offer this service on the first completed borehole to analyse the performance of the ground. Once the results have been calculated, the final design on the amount vertical ground collector can be confirmed. This can sometimes result in a reduction of boreholes needed, reducing the initial installation costs.

The borehole used to conduct the initial thermal response test can be incorporated into the final borefield for the heat pump installation. So if the first borehole is tested the design can be confirmed relatively quickly.


For our trade customers we are able to provide a hire service for the TRT unit. Please contact us to discuss your requirement.


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