Excuse my ignorance, is this setting the amount of gas being burnt or the pump setting? Basically I was under the impression that a higher setting would be costing me more. I am quite the noob at this sort of thing. Thanks
I have a worcester greenstar 30si, and the only way i can get the house to an acceptable temperature (above 20C) is to have the central heating temp control all the way round to between 6 and max. I know this depends on the size of house and number of rads etc, ( a smallish 3 bed semi), however...