The Thermorail single bar heated towel rails are all 12 volt which means they are safe to be installed anywhere in the bathroom, even close to water. The single rails are designed to be installed in a series of rails limited only by your imagination. We do however recommend a minimum of 3 single rails are used in a set to provide enough heated surface area in contact with your towels to help them to dry.
All the 12 volt single bar rails are provided with a transformer in the box. We also recommend the use of the mounting system for installing and using a timer to control the rails and save on running costs.