The Efficient Home Forum

Hi Well, I think I’m there. I have used the option of utilising the ‘white’ wire NC switch from the hot water two port valve to switch the neutral wire to the heating an underfloor two port valves, with the positive feeds fed respectively from the heating BDR91 and the heat demand output from the und ...

Hi Im not certain on the optimum configuration for my system. I currently have an S-plan system with 3 loops (DHW, heating and under-floor), each controlled by 2 port valves. All radiators have TRVs. I have replaced my old boiler with an InterGas HRE OV. Currently I have rewired the system so the ...