How did the Solartwin system do in the side by side tests of 8 solar water heating systems?
Remarkably well. The tests were set up to see how well different solar water heating systems (not just thermal solar panels alone) could heat a 150 litre cylinder, not a standard household 120 litre cylinder. Our solar panels were not in the test, originally. At the very last minute one solar heating supplier dropped out and we were asked to supply a system, including one Solartwin solar panel. But we faced a quandry… Our standard Solartwin system is designed to heat a standard 120 litre cylinder so what were we to do? The options were (1) not to participate, (2) to make a special panel 25% bigger, (3) to install 2 panels since there was no limit on panel size or (4) to supply one standard sized panel and to take the flak.
