09/06/2026
A recently installed 3.5kw vaillant aerotherm plus and unistor pure. The customer was coming off oil, so has benefitted from the new £9000 grant. Full heatloss to calculate running costs and performance of existing emitters. By doing this we seen that there was no need to upgrade any of the existing system. This system was also on 10mm copper but not a problem as some may think. Desgin flow is 45dc.
Lucky enough that the customer had a gazebo set up for the wet weather.