Chaps,
What setting should the return valves on central heating radiators be set at, eg 1/4, 1/2, 3/4 or fully open? What effect would different settings have on heat output of the rad ( if any ) and would it affect the economy/efficiency of the boiler in any way?
Thanks
HRH
What setting should the return valves on central heating radiators be set at, eg 1/4, 1/2, 3/4 or fully open? What effect would different settings have on heat output of the rad ( if any ) and would it affect the economy/efficiency of the boiler in any way?
Thanks
HRH