10 Best Energy-Efficient Heaters UK 2024 | Dyson, Lasko, De'Longhi

Taking the energy-efficient space heater crown is this offering from the ever-reliable brand, De'Longhi. We opted for the oil-filled type due to the essential qualities we spoke about in the buying guide; however, this offers plenty more. 

The multiple heat settings (1500 - 2500 W) allow it to work in many different sized rooms, plus, it's easy to get around thanks to the wheels, cable storage and handle. Not only that, but the 25% more radiant surface ensures faster heat emission, meaning it'll heat your space much quicker! What more could you need?

This energy-efficient space heater follows a similar contemporary, bladeless design to the Dyson AM09 heater (further down in the ranking) at about half the price. Not only is it stylish, but it also comes with many family-safe features that make it perfect for building your home, including a cool-touch casing.

In addition to the safety, there are multiple heat settings, an eight-hour timer and even a nifty remote so you can control it from the comfort of the couch. Furthermore, the design incorporates patent-pending blower technology which creates powerful ceramic heat but with a low noise output. 

Here we have a space heater that offers something a little different to the rest of those in the ranking as it is more of a permanent feature due to its wall-mounting design. This is, therefore, a great choice for those who wish to permanently heat outdoor spaces, such as a garage.

Another feature which lends itself to permanency is the 7-day timer feature, meaning that you can arrange the heater to turn on and off around your work or hobby schedule. 

This option from Vortex is excellent if you plan on moving your space heater from room to room due to its compact size and meagre 1.8 kg weight. Plus, there are three different heat settings from 750 - 1500 W, meaning you'll be able to customise the heat to fit your needs. 

Add to that some impressive safety features, like the auto shut-off, a cool-touch casing and the finger-safe fan shielding, and you can be sure it'll be a good piece of kit for anyone in the family. 

This offering from Dyson is one of the most stylish heaters in our ranking, housed in a handsome modernist aluminium and white casing. Furthermore, it takes up relatively little room, so you don't have to worry about it being difficult to move around the home. 

It also has some interesting features, such as being able to opt for a wide range or more narrow heating depending on your needs, as well as some of the more classic options. It's pricey compared to some of the other models, but you get a lot of customisation options which allows you to really dial in your desired preferences. 

Here we have John Lewis' take on the classic oil-filled heater. Sure, it might not be as contemporary-looking as their convection heater, but it offers plenty in terms of features, efficiency (due to being oil-filled) and, most importantly, warmth.

If you're looking to heat larger spaces, this will do you well as it has the most power out of all of our options. However, while it boasts plenty of power, it's also relatively easy to transport around the home due to the wheels and a cable wrap, which is a welcome combination.

This modern-looking heater from John Lewis has plenty to offer for a relatively modest price tag. It comes with plenty of power to heat spaces, multiple heat settings and an adjustable thermostat for those who want a precise temperature. 

This offering also has a timer which can run up to 8 hours, meaning you could set it to either turn off after you're asleep or before you wake up in the morning. Sadly, even though it's a convection heater, some buyers have found it to be a little too loud, particularly when working from home. 

Next up, we have an oil-filled option for those either short on space or who are only heating modest rooms. This heater from Warmlite offers plenty of features, such as auto shut-off, overheat protection, a programmable thermostat and a portable carry handle. 

That said, it does have its limitations. Not only is this machine the smallest in our ranking, but it also has the lowest amount of watts, so don't be expecting it to heat an entire room. Instead, think of it as a device that will take the edge off when you're particularly cold.

Although this offering from the ubiquitous Russell Hobbs would be considered small, it isn't half mighty due to its impressive 2000 W of power. Therefore, don't be surprised if this heats smaller rooms in a short space of time. Plus, it's come with a nifty 80-degree oscillating feature, ensuring the heat is spread well around the room. 

However, there are a couple of things to consider. Firstly, it's not going to be too great in large spaces. Secondly, it is known to be rather loud, measuring at over 50 dB when in full flow, so it's not ideal for those trying to get cosy and relax. 

If you're looking to take the heat with you anywhere, any time, then the Mr Heater MH12B would be an excellent choice. The device works indoors (provided there is ventilation) and outdoors and can heat a space up to 300 sq metres. Furthermore, it also comes equipped with a carry handle to make the portability more convenient. 

However, as we mentioned in the buying guide, there are some downfalls to the gas-styled heaters. You need to think about the required ventilation, necessary gas cylinders top up, and the machines being typically less energy-efficient.