hex

In the UK, that is. Easily available in the US and Oz but I can't find the right search terminology to source any in the UK.. To fix sub floor cls, on membrane, to conc. base. I sealed with Sikka rapid dpm and will completely cover with membrane too. Thank you. Dain

Had a quick search but no answers... Plan is to use a plate heat exchanger on the thermal store to provide mains pressure hot water to 2 bathrooms, objective is that both bathrooms can be used simultaneously (one is bath and shower, the other is shower only) without massive temperature/pressure...