|Basic Principle of Heat Pump, in Veissman|
I have been able to update my pages on this blog with some of the information about Borehole specification, and I feel very lucky to have discovered this. I will add it to the links on the right hand side, for future reference.
There is also a very good reference guide on Solar thermal panels, setup, orientation, electrics, etc, in the Veissman Vitosol Technical Guide.
Weirdly, despite the comprehensive quality of these two excellent publications, there seems no hint whatsoever of the idea of joining them together, i.e. Solar Thermal Charging of the Ground. Perhaps I ought to write to Veissman.