We are fitting new towel rails as a result of an extension. These rails will be dual fuel: run by central heating in winter and by an electric element in summer. We would like to have the electric element controlled by a timer switch but are finding it hard to find one suitable (we asked our builder but he couldn't help). In an ideal world I would like to have a digital timer rather than an analogue one - has anyone got one or know of something we can use? TIA.