How big/old is the house? Are you in during the day - if not 17.5 sounds
unnecessarily high.



The house is a two bedroom semi, but only really the size of a typical
northern terraced house. It's 120 years old. 17.5 may be a little high I
suppose, but I am in about out all day so I need it slightly warm.

My other question is, what setting do I have the dial on the front of the
boiler at? Its a Worcester 24i I think and the dial goes from 1 to 6. It
doesnt seem to make any sense having a temp control on the boiler when I
have a seperate one in the hallway, so what is the optimum setting to have
the dial at?