just to update my question - my boiler at the moment does not have a timer/programmer on it - so it has to be manually switched on for the radiators to work.
Also there is a unit downstairs in the halway on the wall which simply switches the heat on and off for the radiators, (a manual switch) -
sorry forgot to mention this earlier - will I need a programmer that connects to the boiler or will I need something to replace the manual switching mechanism d-stairs?
RSB
January 2008