How Do Electric Showers Work?

how do electric showers workDo you prefer the pulsing jets of water blasting down on you or to lie relaxed in a hot bath until the water gets too cold? Are you a bath person or a shower person? It is sobering to think if you wash in under 5 minutes and use a shower that has a low-flow head you could save around 50 gallons of water and a considerable amount of energy compared to having baths each time you washed.

One of the simplest ways to fight against the continuing and growing problem of global warming, while saving you money on your utility bills is by saving hot waster by using a shower.

Have you ever stopped and wondered though, how does a shower actually work? Wonder no more because in the following post we will look at how various types of electric showers work.

So How Does An Electric Shower Actually Work?

Electric shower overcome problems experienced with other showers by heating cold water, as the name explains, using electricity. They never run low or completely out of hot water, so they are the perfect choice if you live in a house with lots of people who shower at the same part of the day.

It may or may not be surprising to learn that electric showers work in very much the same way as other electrical appliances, such as hair dryers and toasters, when they get hot. They use a piece of metal known as a heating element to transport an electrical signal. This has a reasonably high resistance, so when it gets really hot, the electricity moves through the metal. As cold water flows past the heating element, it picks up the heat and heads out through the nozzle you are standing under.

You are undoubtedly aware that electricity and water are generally a rather dangerous mix, but as long as they are properly installed and looked after, electric showers are completely and utterly safe to use. This is because the heating element is kept in a completely sealed off unit. The electricity flows through it, but not in any way shape or form that it can give you an electric shock. There is never a point where the electricity comes into contact with the water that flows out and down onto you.

Thermostatic Control

To adjust how hot or cold an electric shower is there is usually a dial you can turn, marked around it in a scale that runs from the colour red (meaning hot) to the colour blue(meaning cold). In the most basic of electric shower set-ups, this dial is used to simply adjust the speed of the water flowing past the heating element, in turn making the water that comes out of the showerhead over you warmer or colder. In higher quality, and more expensive, electric showers there are pressure-valuing valves and a built in mixing tank, all of which helps avoid sudden alterations in the temperature of the water when you turn the dial. There is also various flow sensors and thermostats that work together to ensure that the water pressure and temperature stay as steady and safe as they possibly can.

That is a very tall order though, as the water feeding into the electric shower has a much more varied pressure and temperature than you may have thought. During winter, the temperature incoming might be as low as just a few degrees Celsius, while during the summer months, it could be at least 10 degrees warmer. It’s really challenging for an electric shower to keep the temperature and flow of the water at a constant throughout the year. That in itself explains why even if you never touch the temperature dial of your shower that the water often flows out colder or warmer than the last time you had a shower.

Power Electric Showers

The water supply from your home needs to have a reasonably high water pressure if an electric shower is going to work effectively for you. This is because the shower heating unit will reduce the pressure as the water flows through it. If the water pressure of your water supply is not enough for a standard electric shower, you can opt for a power shower. This kind of shower takes in the cold water and heats it in the same way a normal, electric shower does but it also incorporates an electric pump to boost the pressure so that when it leaves the nozzle above your head with greater amount of speed and force.