Electric water heater for a bathroom and kitchen?

Electric water heater for a bathroom and kitchen? An electric water heater can supply a bathroom and kitchen, but the correct type of heater depends on the hot water demand, number of outlets, available electrical supply and how the property is used.

For small applications, such as a single hand basin, cloakroom or occasional kitchen sink, a compact point-of-use electric water heater may be suitable. These are usually installed close to the outlet, which reduces pipe runs and helps deliver hot water quickly. They are useful where only a small amount of hot water is needed.

For a kitchen sink and bathroom basin, a small stored electric water heater may be a better option. These units store a limited amount of hot water and can provide a more stable temperature than a small instantaneous heater. However, once you have used the stored hot water, the unit will need time to reheat.

For showers, baths and higher domestic hot water demand, a larger solution is normally required. An unvented direct electric cylinder is often a good option in UK homes because it stores hot water at mains pressure and can supply multiple outlets, provided the incoming mains pressure and flow rate are suitable. This type of system is usually more practical for properties that have a bathroom and kitchen used regularly.

An instantaneous electric water heater, also known as an electric tankless water heater, can also supply a bathroom or kitchen, but larger models require a high electrical load. They may not be suitable for filling baths quickly or running multiple outlets at the same time unless the unit and electrical supply are properly sized.

The main thing to consider is simultaneous demand. An instantaneous electric water heater may cope with one tap or hot water outlet, but it may struggle if someone is showering while another person uses the kitchen sink. The electrical supply must also be checked, as larger electric water heaters may need dedicated circuits or even a three-phase supply.

In simple terms, an electric water heater can be used for a bathroom and kitchen, but small point-of-use heaters are best for light use, while larger homes or regular shower and bath use is usually better served by a direct unvented cylinder or a correctly sized electric instantaneous hot water system.