How to Fit An Electric Shower

An electric shower is a great appliance that you cannot afford to lack especially during the winter or just for convenience purposes. Choosing the right electric shower is very rewarding because it gives you the optimal measure of satisfaction. The most important considerations when you are choosing an electric shower are its compatibility with your home’s plumbing system and the kilowatt rating. That is just about everything that you need to have in the back of your mind prior to making the purchase. If you want this covered in detail, we have this here. This article however, is an illustration of the procedure involved in fitting an electric shower in your bathroom.

The Preparation

Two things need to be prepared before you begin the actual installation process. First, prepare the pipework. This involves running a 15mm pipe from the cold water reservoir to the wall where you intend to fit the shower. This is called the inlet pipe. Now fit a valve into the pipe and then insert the connector for the unit. Secondly, you need to install the electricity supply. Start by drilling a hole in the wall for the electric wires. Now run these electric cables from the shower to a double-pole pull-cord switch mounted on the ceiling.

The Procedure

The first step in the installation procedure is to drill holes in the walls where you intend to install the shower unit. Use a masonry bit to drill these holes but if you are drilling on a tiled surface, it is advisable to use a tile bit. Then insert wall plugs and squeeze some sanitary silicone sealant to each of these holes. Once all this is done, the next thing is to feed the pipe and electric wires through the backplate of the shower unit and then screw it into position using the screws that came with the package. 

Now join the inlet pipe with the shower unit and use a pipe wretch to tighten the compression fitting. Once you have correctly connected the pipe to the shower unit, now fix the electric cable to the unit. You will do this by connecting the neutral cores to the terminals marked “load” and the earth to the earth terminal. These are the only steps that are somehow complicated in the entire fitting procedure.

Once you are done with them, the next thing is to fit the cover followed by the rail. Ensure that you adhere to the manufacturers’ instructions to avoid misaligning the rubber seal on the cover. Also, make sure that when fitting your rail, the shower head should not dangle less than 25mm from the spill-over level of your shower tray, bath, washbasin or bidet. This will prevent dirty water from finding its way back into the clean water supply.

Finally, follow the instruction manual to screw one end of the hose to the handset. Before you screw the other end to the shower unit, countercheck everything to make sure that it is working correctly. If everything is working, screw the other end of the hose to the shower unit and enjoy your hot shower. Don’t forget to clean and maintain the shower on a regular basis to prevent the buildup of limescale and other dirt particles.


As we have said above, once the oil radiator is switched on, it consumes more power than usual because it will be operating at full capacity. To know exactly how much energy is consumed, you should compare the maximum power output of the oil filled radiator to the maximum electricity costs incurred.

So if in two hours you want to know how much energy is consumed, let’s say your oil radiator is rated at 2kwh, you will multiply the hours and the power output that’s measured in watts to get the units consumed in that period of time. Like 2KW by 2 hours = 4 units.

Video explains how fit an electric shower

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