thanks for your reply. I have been looking into it and am split between Tapworks AD11 and the Kinetico 2020c. I like the fact the kinetico is simple to use but is it worth over twice the price? Can you recommend where to get one and how much?
Found the whole process frustrating to be honest. Been told I need a boiler from 15-30kw and cylinder 180-300 litres. Only one of the 3 did anything like a heat loss count