Hello
Having read quite extensively on the use of an ASHP for heating, a SunAmp unit for hot water and a solar PV diversion, I'm wondering whether its the equipment or the control system that's the problem. I appreciate that, if you buy, for example, a SunAmp heat store and they also supply a controller, then, if it doesn't work it is the whole thing that is identified as unreliable. (Similarly for the ASHP and PV Diverter)
What I'm hoping for is a better understanding of where the problems lie. I've used a German made boiler controller which has never given a problem, but setting it up was a nightmare. It was too easy to set it up wrongly.
What is the experience with the control systems? Which ones work most reliably?