Electric showers work by independently by heating cold water, eliminating the need for a hot water tank or for hot water storage. Because the electrical power needed for their heating elements is so great, electrical showers must be connected to independent electrical circuits. You’ll need to have space for an extra fuse on your fuse board or an unused fuse that can be removed and replaced with one that’s suitable for your shower.
The fuse and wire thickness necessary are dictated by the power of the shower. Once you’ve picked the shower you want to have installed you should let your electrician know so they can plan the installation.
Installing an electric shower will generally need two different trades people – a plumber, to extend your water pipes to the location of the shower and add any waster pipes if necessary, and an electrician, although, sometimes electricians are also able to complete the plumbing part of the work too.