It’s thought that a good eco kettle will be 80-85% energy efficient – this is a measure of how much of the energy is going into boiling the water. Other kitchen appliances, such as stoves and ovens are not as energy efficient as this. This is a great kettle if you don’t require too much control (like multiple temperature or keep-warm settings).It’s great because it’s simple but can also be louder than some other kettles. The same applies to other everyday kitchen appliances, such as energy efficient fridges to store your milk and eco dishwashers to clean everything up. The auto shut-off ensures the kettle shuts-off as soon as the water reaches boiling point. A kettle without this function will take longer to cut out after the water has boiled, leading to energy wastage. The basic idea behind variable-temperature kettles is that you heat the liquid to exactly the right temperature first time instead of heating it to boiling point and then leaving it to cool. Here is a basic guide to the most common temperatures and how they are used.

De-scale your kettle regularly – limescale can reduce the efficiency of your kettle. It’s a good idea to de-scale your kettle every 1-2 months. This can be done easily with a few common ingredients, including lemon, baking soda and vinegar. You can also clean your oven this way. KEEP WARM FUNCTION: Another great function of this Duronic water boiler is that after heating your water up you can press the ‘Keep Warm’ button to keep the water in the kettle at the same hot temperature for up to 30 minutes. This is perfect if you usually like to go for second drink after your first one, of if you know someone else will want a hot drink shortly after you. As the kettle is one of the most used items in the kitchen, being as energy efficient as possible is important. In fact, simplicity was clearly front and centre in the design of this kettle with temperature control. The “without base” version has one button to move “up and down” between the four “non-boiling” temperature options (50, 70, 80, and 90℃) plus a separate button to go directly to 100℃. The “with base” version has one button each for the four supported temperatures, which are 70, 80,90 and 100⁰C. There’s no “fast boil” as such but boiling speed always depends on how full the kettle is in any case, you do get keep-warm and auto-shut-off functions.Duronic’s EK42 is one of the best eco-friendly technology kettles in the market. Why? For starters, it has an eco rapid boil feature with 2.5 – 3 KW that saves energy. The temperature control feature makes it possible to choose different boiling temperatures. And, its keep warm feature retains the water temperature up to 30-minutes – we tested this to confirm it. You can also boil your preferred amount of water, plus the transparent window makes it easy to see the water level gauge. We have to be honest and say that the Doctor Hetzner variable-temperature kettle isn’t exactly the most attractive temperature-control kettle we’ve ever seen, but it isn’t exactly ugly either and it certainly has plenty to offer in terms of usability. The OXO On Cordless Glass Electric Kettle is a good choice if you want an eco-friendly kettle with a modern design. The Breville IQ Electric Kettle is one of the most energy-efficient kettles on the market, perfect for those who want to save money and energy. With five temperature settings, you can find the perfect brewing temperature for your favorite tea or coffee. Duronic Electric Kettle EK17 /WE | WHITE 1.7L Fast Boil Kettle | 3000W Power | Contemporary Design | Cordless | 360° Base | Auto Shut-Off / Boil-Dry Protection | Flip Top Lid

One thing which stands out is the overhead handle with ergonomic handle, allowing for easy pouring and protection against scalding. Its other features include a 360 degree base, boil dry protection, automatic shut off and a 3kW heating element. There's also a matching toaster available. SAFE AND USER-FRIENDLY DESIGN: Seamless kettle liner, large-bore design, easier to fill and clean;double-layer body inside and outside, forming a hollow heat insulation layer, Double-layer insulation and anti-scaldingThe OXO On Cordless Glass Electric Kettle has a borosilicate glass body and a double-wall construction so that it doesn’t retain flavors. It also comes with a stay-cool handle so that you don’t have to worry about burning yourself. Safety features include an auto shut-off function as well as dry-boil protection. Added surge protection means that a power outage can’t (and won’t) destroy your new energy-efficient electric kettle.