Can anyone tell me how the above system prevents hot water from
entering the heating circuit when either the thermostat is set to
very low or the heating is switched off?
My system has constant hot water present in the highest radiators in
I'm not a heating expert but I believe that with a standard system
there is a motorised valve which prevents hot water from entering the
heating circuit. I'm also lead to believe that the above system does
not use these. If that is the case how should it do it?
Any info would be most appreciated.