Can You Install an Electric Shower Without a Tank?

How Does an Electric Shower Work?

An electric shower heats water on demand.

When you switch the shower on, cold water enters from the mains supply. An electrical heating element inside the unit heats the water as it passes through, while the controls let you adjust the temperature.

Because the water is heated as you use it, there is no need to wait for a tank to heat or refill.

The shower does, however, need a suitable mains water supply and electrical connection. The electrical installation should be carried out and tested by a suitably qualified professional.

Can You Install an Electric Shower Without a Tank?

Yes. An electric shower is designed to work without a hot water storage tank.

It connects to the mains cold water supply rather than taking pre-heated water from a cylinder. The shower then heats the water itself when you turn it on.

This can be useful in properties where there is no hot water tank or where installing one would take up unnecessary space.

Before fitting an electric shower, the existing water supply, electrical installation and proposed shower location should be checked to make sure the new unit is suitable.

What Are the Benefits of an Electric Shower Without a Tank?

Energy Efficiency

Electric showers heat water when you need it rather than keeping a large volume of water hot in a storage tank.

This can reduce energy wasted on heating stored water and may help improve efficiency.

Space-Saving Design

An electric shower does not need a separate hot water tank.

That makes it useful in smaller bathrooms or properties where storage space is limited.

Instant Hot Water

Because the shower heats water on demand, there is no need to wait for stored hot water to heat up before using it.

This can be particularly convenient for busy households.

How Do You Replace an Electric Shower?

Replacing an electric shower involves both plumbing and electrical work. The exact process will vary depending on the existing installation and the replacement unit.

Turn Off the Power and Water

The electricity supply to the shower and its water supply must be isolated before work begins.

Remove the Old Shower

The existing shower unit is removed, with the water and electrical connections safely disconnected.

Connect the Water Supply

The replacement shower is connected to the cold mains water supply in accordance with the manufacturer's instructions.

The connections should be checked carefully for leaks before the shower is put into normal use.

Connect the Electrical Supply

The electrical connections need to be made correctly and tested as part of the installation.

Electrical work associated with a shower should be carried out by a suitably qualified person and completed in accordance with applicable UK requirements.

Secure and Test the New Shower

Once the unit and accessories are fitted, the water and power can be restored.

The shower should then be tested for leaks, water flow, temperature control and correct operation.

If you're replacing an existing electric shower, professional installation can help ensure the new unit is suitable for the existing plumbing and electrical setup.

How Much Does It Cost to Install an Electric Shower?

Installing an electric shower usually costs between £250 and £950.

The actual price depends on the shower being installed and how much work is required. For example, the existing plumbing and electrical supply may affect the complexity of the job.

For an accurate price, the installation should be assessed based on the property and the shower you want to fit.

How Long Does an Electric Shower Last?

An electric shower can typically last around 7 to 10 years, although its lifespan depends on how it is used, the water quality and how well it is maintained.

Usage

Frequent use puts more wear on the shower and its components over time.

Water Quality

Hard water can cause limescale to build up inside the shower. This can affect the heating element and reduce performance.

Maintenance

Regular cleaning, checking and prompt repairs can help keep the shower working efficiently and may extend its useful life.

How Can You Prolong an Electric Shower's Lifespan?

A few simple checks can help prevent avoidable problems.

• Descale the shower regularly if you live in a hard water area.
• Check for leaks and deal with them promptly.
• Pay attention to unusual rattling, whistling or other noises.
• Arrange repairs when you notice changes in performance rather than waiting for the shower to fail completely.

Can You Install an Electric Shower Over a Bath?

Yes. An electric shower can be installed over a bath, provided the installation is planned correctly and meets the relevant electrical and safety requirements.

The position of the shower unit is important. It should be installed in an appropriate location and protected from direct water exposure in accordance with the manufacturer's instructions and applicable requirements.

The area around the bath and shower should also be properly sealed to help prevent water leaks and damage.

A professional should assess the proposed position before installation, particularly where the shower is being fitted into an existing bathroom.

Who Can Install an Electric Shower?

Installing an electric shower is not a straightforward DIY job because it involves both water and electrical connections.

A suitably qualified electrician should carry out the electrical work, while the plumbing side also needs to be completed correctly.

The person carrying out the work should be able to confirm that the installation is suitable for the property and complies with the relevant UK requirements.

This is particularly important when replacing an existing shower, as the new unit may have different electrical or water requirements.

Electric Shower Installation and Repairs in London

If your electric shower needs replacing, repairing or fitting for the first time, Serviceteam can help with shower work across London.

Whether you already have an electric shower or are considering one because you do not have a hot water tank, the first step is to check that the proposed installation is suitable for your home.

For problems with an existing shower, you can also arrange professional shower repairs in London rather than replacing the whole unit unnecessarily.

For help with other bathroom fixtures, see our range of shower, tap and bathroom fittings for London properties.

Frequently Asked Questions - (FAQs)

How many electric showers can I have?

You can have more than one electric shower, but each installation needs to be assessed based on the property's electrical system.

Older properties may need their existing electrical capacity and wiring checked before additional high-load appliances are installed.

A qualified electrician can advise whether the existing system is suitable.

What are the benefits of an electric shower without a tank?

The main benefits are that electric showers heat water on demand, do not need a separate hot water storage tank and take up relatively little space.

They can be useful in homes where storage space is limited or where a hot water tank is not available.

Are electric showers energy-efficient?

Electric showers only heat water when they are being used, rather than continually heating stored water.

This can make them an efficient option, although overall energy use depends on factors such as the shower's power rating, how long it is used and household usage.

Can you install an electric shower without a water tank in a London home?

Yes. An electric shower can work without a hot water storage tank because it heats cold mains water as it passes through the unit.

The property's water supply and electrical installation still need to be suitable for the chosen shower.

What type of water system is needed for an electric shower?

An electric shower needs a suitable mains cold water supply and a compatible electrical connection.

Water pressure and flow should be checked before installation because the performance of the shower depends partly on the available water supply.

If you're unsure whether your existing system is suitable, a qualified professional can assess it before recommending a shower.

Need an electric shower repaired or replaced? Serviceteam can help with electric shower installation and repairs across London. Get in touch to discuss your shower and arrange a suitable service.