The CIBSE after-effect is good. The recognition given to my paper shows that there is significance in this technology in furthering the future of Ground Source Heat Pumps - making them more efficient - but there are many wrinkles to be ironed out, and I am finding most of them!
I feel added responsibility to get this right, and to document everything. I feel that I have proved that high-volume-low-temperature is effective, but I need to find a reliable source of swimming pool panels. The ones I can find by googling are nothing like as good as the ones I am presently using, and I would like to get some into stock as a precaution, in case someone else wants an installation.
PS. David Atkins has told me to look at the website of SolarFocus in Austria, and they have a UK agent, Oxford Renewables! About 100 pounds each.