Showers – Electric Vs Mixer

Showers - Electric v Mixer

Electric showers, as the name suggests, use electricity to heat cold water. Mixer showers combine hot and cold water using a combi boiler or immersion heater to heat the water. Before you choose between a mixer shower or electric shower several factors should be considered. How it looks is important but you should also consider: costs, reliability, flow rate and pressure.


Electric showers only need a cold water supply so you won’t pay for heating water that is not used. A 7.5w electric shower costs an estimated 15p for 10 minutes usage. A mixer shower, based on 10 minutes usage, costs approx 28p to heat up the water – 43p with an emergent heater (prices vary depending on your supplier).


Electric showers don’t rely on hot water so you can always have a hot shower. However, if you have a good reliable hot water system a mixer shower is recommended. Mixer showers tend to be more durable, less prone to failure and have reduced issues with limescale.

Flow Rate

Electric showers, typically, have a weaker flow than a mixer shower. However, an electric shower will still work if your boiler breaks down. The mixer shower has a high flow rate and a thermostatic mixer that stops water temperature getting dangerously hot.

Initial Cost

Electric and mixer showers can start at a similar price. However, the mixer shower premium products and designer shower heads are far more expensive than their electric shower counterparts. If you are choosing between an electric shower or a mixer shower you should consider the points mentioned here. You should also factor in the current water system you have installed in addition to longevity of products and warranties. Contact Afon Plumbing and Bathrooms today and we can discuss your needs further – we’d be happy to help.