It's a common misconception that if a kettle boils faster, it must use more energy. However, our extensive testing shows that this absolutely isn't the case.
In fact, most of our Eco Buy kettles have been awarded the title because of their speedy boiling. If a kettle is able to reach boiling point in around three minutes, it will use far less energy than one that takes four or five minutes to boil the same amount.
So if you're looking to cut down on your energy bills you're far better off choosing a fast boil kettle as it'll likely save you money in the long run. You won't be left waiting around for your morning cuppa either, which is a nice bonus.
While we have tested kettles that can boil a litre of water in less than two-and-a-half minutes, we've also come across models that take almost four minutes, so there could be quite a lot of difference between two products sitting next to each other on a shelf.
Do note that just because a kettle scored well in the speed element of our tests, doesn't necessarily mean it's a good all-round model. Some of the kettles we've reviewed and rated are nearly Don't Buys, as they scored poorly on our tests, so be sure to read our full reviews before making your final decision.
Here are some fast boil kettles we've tested recently:
You won't be left standing around waiting for a well-deserved cuppa if you opt for this kettle, as it boils a litre of water (enough for four hot drinks) in a little over two minutes and 40 seconds. The minimum fill is two cupfuls rather than just one cup though, so you might end up wasting water if you're the only tea-drinker at home.
The 360-degree rotational base aims to make this kettle easy to use for both left and right-handed people, plus there's boil dry protection to prevent the inside from damage. We've tested the matching too, if you like the idea of a colour-coordinated kitchen.
This affordable kettle has been on the market for a long while now and has been put through its paces in our test lab on two separate occasions. Both times it has impressed us with its speedy boiling times, taking just over two minutes and 40 seconds to boil a litre of water.
The minimum fill amount is a very eco-friendly 235ml too, so you won't need to waste time or energy boiling any more water than is necessary. It can hold enough water for up to seven hot drinks and the water gauge has handy cup measurements too.
This speedy kettle will boil a litre of water in just two-and-a-half minutes, so you'll have just enough time to get out a couple of mugs - and maybe the biscuit tin, too. You can boil as little as 235ml at a time, which is ideal if you're the only one at home who fancies a hot drink.
The total capacity of this model is 1.7 litres, which is about standard compared to other kettles we've tested and will allow you to make up to seven drinks at once. There are matching two-slot and four-slot toasters available to buy, too.
There's a handful of important things to look for when choosing an eco-friendly kettle. These are:
These will give you the best chance of being as energy-efficient as you possibly can, saving you time and (more importantly) money.
We were all taught in school that water boils at 100 degrees Celsius, and while this is true for the most part, it can actually depend on where you are in the country.
For example, if you live at sea level (or very close to it) your kettle will boil at almost exactly 100°C. If you were to relocate to somewhere like La Paz in Bolivia, for example, it would boil at less than 90°C.
This is less to do with elevation and more to do with atmospheric pressure. At over 3,500m above sea level, La Paz is the world's highest administrative capital. When you're at an altitude, the atmospheric pressure is lower, which means that water doesn't have to reach such a high temperature in order to boil.
So if you were ever to pop a thermometer in your kettle and find that it doesn't quite reach 100°C before switching off, not to worry - it's likely just related to where you live.
You'd be forgiven for thinking that a small appliance like a kettle can't possibly use very much energy, but you might be surprised to find out that they can really increase how much you spend each month.
Obviously they're not quite as power-hungry as large appliances such as fridge freezers and tumble dryers, but as something that's used little and often your kettle will rack up lots of energy use over time.
Based on the average capped energy price as of April 2022 (28p/kWh for electricity and 7p/kWh for gas), we've estimated that your kettle could cost you around £32 per year (based on boiling a litre of water three times per day). This is going to be a lot more than charging a phone or tablet, but slightly less than using your oven regularly or running an American-style fridge freezer.
If you're a real tea fanatic and find yourself boiling the kettle several times throughout the day, there are a few different ways you can cut down on your energy bills and make the most of your hard-earned cash. These are: