How can I heat a north facing room cheaply?
We have a spare room on the ground floor which is comfortable to cool in the summer and freezing in the winter despite a double raditior which is operated by an oil fired central heating system. It is set on a timer and is on for a few hours throughout the day & night. In the past we have used an electric fan heater but the ESB bill shot up big time!! I don't want to use a superser because of the condensation it creates.
Has anyone any advice pleeease! Many thanks in advance.