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29 June 2021

Best energy-saving kettles

Our round-up of the best energy-saving kettles - buy one of our recommended kettles to get a speedy brew and save money on your electricity bills.
Rebecca Duff
Energy efficient kettles 439735

Kettles all use a similar amount of energy to boil a litre of water, but that doesn’t mean they’re all equally efficient. 

If a kettle switches off immediately after boiling and has a low minimum fill level, it can help you save energy and money, as this means you don’t have to boil more water than you need.

We take this into account when awarding products Energy Saver status - a label we give to Best Buy kettles that successfully pair superb performance with low energy use. Not only will these kettles make a first-class cuppa, they’ll also trim your electricity bills. 

To qualify as an Energy Saver, a kettle must have a brief overboil time and low minimum fill level. That way, we know that they do more to keep electricity usage down.

Which? members can log in to see our pick of the best energy-saving kettles in the table below. If you're not a member, join Which? to unlock the table below.

Best energy and money-saving kettles

* Viewing this on mobile? Scroll right to see the whole table

What it
looks like
Kettle make and model
Capacity
Minimum fill
Score
Best Buy?
dualit 72470- for table
1.5l
250ml (1 cup)
86%

One of the highest scoring kettles we've ever tested, this is a great all-rounder. It boils quickly, is very easy to use and filters limescale effectively if you live in a hard water area.

Read the full Dualit 72402, 72413 or 72470 reviews.

russell-hobbs easy-19980- for table
1.6l
235ml (1 cup)
83%

This kettle comes with an integrated measuring cup, so you can accurately make sure that you're only using the amount of water you need. And not only will it save on bills, it costs less than £30 to buy too.

Read the full Russell Hobbs Easy 19980 review.

bosch twk8633gb
1.5l
300ml (1 mug)
81%

Ideal if you only tend to make one cuppa at a time, this kettle can boil 300ml in less than a minute. It has multiple temperature settings for different kinds of tea and beeps when it's boiled.

Read the full Bosch TWK8633GB or TWK8631GB reviews.

Russell Hobbs Luna 23211
1.7l
285ml (1 cup)
81%

This quick and quiet kettle looks stylish and is easy to use. It turns off quickly after boiling and you can do just one cup at a time, making it much more energy efficient than the majority of kettles we test.

Read the full Russell Hobbs Luna 23211 or 23210 reviews.

Breville Crystal Clear VKT071-01
1.7l
250 ml (1 cup)
78%

As well as the low minimum fill and lack of overboiling making it energy efficient, this kettle is also one of the fastest we've ever tested. It's perfect for a speedy tea for one. 

Read the full Breville Crystal Clear VKT071-01 review.

What it
looks like
Kettle make and model
Annual running costs
Minimum fill
Score
Best Buy?
Blurred-Kettle
1.5l
250ml
86%

One of the highest scoring kettles we've ever tested, this is a great all-rounder. It boils quickly, is very easy to use and filters limescale effectively if you live in a hard water area.

Find out which kettle we're talking about - log in or try Which?.

Blurred-Kettle
1.6l
235ml
83%

This kettle comes with an integrated measuring cup, so you can accurately make sure that you're only using the amount of water you need. And not only will it save on bills, it costs less than £30 to buy too.

Find out which kettle we're talking about  - log in or try Which?.

Blurred-Kettle
1.5l
300ml
81%

Ideal if you only tend to make one cuppa at a time, this kettle can boil 300ml in less than a minute. It has multiple temperature settings for different kinds of tea and beeps when it's boiled.

Find out which kettle we're talking about  - log in or try Which?.

Blurred-Kettle
1.7l
235ml
81%

This quick and quiet kettle looks stylish and is easy to use. It turns off quickly after boiling and you can do just one cup at a time, making it much more energy efficient than the majority of kettles we test.

Find out which kettle we're talking about  - log in or try Which?.

Blurred-Kettle
1.7l
235ml
81%

As well as the low minimum fill and lack of overboiling making it energy efficient, this kettle is also one of the fastest we've ever tested. It's perfect for a speedy tea for one. 

Find out which kettle we're talking about  - log in or try Which?.

Kettle energy-saving tips

  • Boil only the amount of water you need - boiling a litre of water often uses more than twice the energy it takes to boil the minimum amount.
  • Descale your kettle regularly - if it’s full of limescale, it uses more energy to boil the same amount of water.
  • Choose a kettle with a low minimum fill - this means you won’t waste energy by boiling more water than you need.

If you just want the best cheap kettle, or are looking for a kettle with special features such as a filter or multiple temperature options, head to our kettle reviews to see all the kettles we've tested.