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Thanks Dave You have answered my question fully as expected from a near neighbour. [I am from Brundall - daughter in Seething] Our best bet seems to be a Horstmann Centaur Plus C27 from Screwfix, Great Yarmouth at £28.99 incl. v.a.t. All to be done in the hope of cutting the oil cost down...

Hi I beg to differ that a room and cylinder themostat are required. Unable to investigate at present, I am sure that on the 12 way connection box both the HW and CH Thermostat connections will be linked out. [ wired as if always calling for heat ] The water temperature is controlled by the...

Hi The system is fully pumped with a single three way motorised valve. Neither the hot water or central heating have a thermostat [just thermostatic radiator valves]. We have tried to program the CH and HW seperately with no success. Thanks Dobbin45

Hi My daughter has a Danfoss Programmer type CP15 - can anyone confirm that Hot Water and Central heating CAN NOT be programmed independently of each other. Unable to find any instructions on the internet for this model. Was thinking of fitting a Horstmann Centaurplus C27 as a replacement as...