My parents used to be very angry when my brothers and sisters and I forgot to turn off the lights. Unsurprisingly-it is meaningless and expensive, and the energy saved by turning them off can be used for astronomical kettles.

I can't imagine that my parents' kitchen doesn't have the sound of a kettle boiling. Before they can make stalactites with garden hoses, they won't succumb to the waste of heating, but the kettle seems to be in use almost all the time.

The kettle is a high power consumption. In order to be more environmentally friendly, many people only fill up their kettles with the amount of water they need, but this still leaves them with the problem of burning an average of four times a day, according to which? .

The Vektra vacuum electric kettle attempts to solve this problem by combining an electric kettle device with a vacuum kettle, which can keep hot for up to four hours after the water is boiled. It's not perfect yet-it is claimed that the water is still 80°C after two hours and 68°C after four hours.

So, is it effective? There are few online commentators, but very happy. (We have changed their names just in case, by including them in this column, when they just want to live a normal life, they will gain a reputation that is difficult to control.)

A guy gave a five-star rating to Nigel’s Eco Store: “As you said, the effect is great, and the water temperature is maintained. Very satisfied with the quality and all the functions.” – Very happy, UK

Amazon reviewers are also pleased. "It does maintain the water temperature as it claims. It is heavy because it has a thermos function. It is very quiet, although I don’t believe it is as fast as it claims. It’s too early, but I am happy so far."-Cautiously happy, UK

"I bought it after studying an energy-saving kettle. The kettle is sturdy and the workmanship feels good. The base allows the kettle to rotate 360 ​​degrees, and the power button is flush on the handle. The overall appearance is a well-made kit. Follow the instructions on the can, and it is generally correct. I am very satisfied with this product."-Joy of careful research, UK

My own judgment-minus the price. The 1.7-liter Vektra Vacuum Eco kettle costs 74.95 pounds, or you can buy 1.2-liters for 64.95 pounds. I believe the work it does is worthwhile, but its price is about twice that of a standard kettle, and you must really pay attention to its advantages.

It is heavy, although there must be a good reason for the weight. This is a bulky kit, including an electric kettle, a vacuum kettle and a kettle server, not to mention the stainless steel casing. Coupled with 1.7 liters of water, it's like trying to pick up a dead dog. On the bright side, once you get used to the weight, you may find that you will feel very strong the next time you pick up a regular kettle.

The bonus item is always the bonus item: it works. It does what it advertises, and it's good. I went home from get off work and made 1.7 liters of tea. One hour later, I used the same batch of tea, and then another hot water bottle was made three hours later. (Yes, a real hot water bottle. I never turn on the heater.)

You save energy. Only tumble dryers, washing machines and vacuum cleaners outperform in terms of energy consumption. The vacuum eco kettle can cut your (kettle-based) energy consumption in half.

Using a vacuum kettle, you can reduce energy consumption without adding any additional costs to your daily life. Generally, reducing the carbon footprint requires effort. I’m sure I’m not the only one who neglects the tumble dryer because of the boringness of hanging clothes on chairs, mirrors, and table corners. I have a kitten, and it thinks it is an elaborate game I designed specifically for it, called "Claw This".

You save time. According to (very similar) statistics, an ordinary kettle can boil enough water for two cups of tea in just 1 minute and 27 seconds. I seem to be impatiently celebrating. What will I do in the extra 90 seconds or so? It should be Twitter. But what if? The statistics are correct. We Britons boil the kettle 1,378 times a year on average, which means that we have waited for the kettle to boil for more than 33 hours in more than a year. With a vacuum kettle, you can reduce the waiting time per year to two working days.

It stays cool outside, so if you accidentally grab or hit it, you won't burn yourself even if it just boils.

I tried to knock it over to see if the "leak-proof plug system" can prevent hot water from splashing everywhere (checking the kettle is a difficult job, but some reckless idiots have to do it). Only a little bit of water is leaking out, so although it is not a good idea to hit or hang it upside down, you are much less likely to get burned than dropping a regular kettle.

It may be expensive and cumbersome, but it is also stylish, safe and a true energy saver.

You can buy the Vektra Vacuum Eco Kettle from ethicalsuperstore.com for between 64.95 and 74.95 GBP, depending on the size.

Interested in learning more about how to live better? Check out this month’s Live Better Challenge here.

The Live Better Challenge is funded by Unilever; its focus is on sustainable living. Except for the segments marked as advertising features, all content is independent of the editor. Learn more here.