I currently have a ferolli 28c combi boiler and a wired thermostat. The thermostat uses just 2 wires and there are only 2 wires coming out of the wall. there is a blue and brown wire and they are connected to the R and W on the thermostat plate. I would like to buy the Migenie Wish 1 wireless thermostat but the wiring diagrams seem to show 5 wires and I'm struggling to find out if I would need to upgrade my wiring or if it will actually work with my current set up. I don't want to pay an electrician just to come and have a look unless I can help it and obviously don't want to buy the wireless thermostat if it won't work with my system. Does anyone know if my 2 wire system will work with the Migenie Wish 1 and how it should be wired?