Do electric radiators use a lot of electricity?

With the 2025 “boiler ban” approaching, it’s no surprise that more and more of us are opting for sustainable heating solutions. One of these options is electric radiators, an increasingly popular low-carbon alternative. Not only are they 100% efficient at point of use, but they offer excellent controllability and fast, comfortable warmth. Before making the eco-friendly switch, it’s worth considering just how much electricity is needed to run these appliances, and how this could impact your heating bills.

What is ‘a lot’ of electricity?

Defining ‘how much is too much’ depends on several factors, such as how many people live in your house and the number of appliances you use. These variants mean ‘a lot’ of electricity for one household could be ‘a little’ for another.

Depending on your existing heating system, switching to electric radiators may increase your electricity usage. However, with this type of eco-friendly warmth, every watt of energy drawn from the wall is converted into usable heat. This means that nothing is wasted, making electric radiators a highly efficient choice. You could even go one step further and use them in combination with renewable energy sources, such as wind and solar power. This would make them completely efficient, from start to finish. Either way, you can be rest assured that all the energy you’re using, whether it’s ‘a little’ or ‘a lot’, will heat your home effectively.  

How much electricity does an electric radiator use?

A simple calculation can help you work out how much energy an appliance needs hourly to run. With your room measurements at the ready, use our handy calculator to work out which size radiator and wattage best suits your needs. For now, we’ll assume your radiator is 500W.

Divide the wattage by 1000, which will give you the kWs (kilowatts) of the appliance. In this case, the 500W radiator is converted to 0.5kW.

If you want to use this radiator for 5 hours, multiply 0.5kW by 5. Your answer, in this case, is 2.5kWh (kilowatt hours), which is how much electricity this radiator will use over that specific time frame.

How much does it cost to run electric radiators?

To find out the running cost, multiply the kWh by the price of your electricity. This will vary depending on rates set by your provider but, for convenience’s sake, let’s say you’re charged 14p/kWh, which is currently the average cost of electricity.

So, the sum would be: 2.5kWh x 14p = 35p.

This means that this electric radiator would cost you 35p over a five-hour period. To go a step further, you can calculate how much this would cost for the week:

35p x 7 ÷ 100 = £2.45 per week

And there you have it. However, this sum assumes that you are running your electric radiator at maximum output for five hours a day, every day of the week. Considering unpredictable British weather and last-minute plans, this assumption is unlikely. Besides these factors, appliances like electric radiators rarely operate at their full wattage for the whole hour. As they offer a range of energy-saving features, you can easily manage and schedule your heating in advance, so you can tailor usage to your needs and budget. With this in mind, it’s perhaps better to consider how electric radiators use sophisticated technology to optimise efficiency, ultimately preventing you from wasting the energy that you pay for. 

How controls keep running costs low

Electric radiators are designed with a variety of different energy-efficient features, all of which will help lower your energy bills. Let’s look at the different types of features and how they could reduce your running costs.

Precision Digital Thermostats

Many of our electric radiators are fitted with their own precision digital thermostats that are accurate to +0.5 ᵒC. This means they won’t fluctuate from your preferred temperature. Instead, they will switch off when they sense the temperature going too far above your set level and then switch back on if it drops too low, perfectly maintaining your ideal temperature. 

How can this function save on heating bills?

High accuracy levels mean precision digital thermostats ensure your space isn't overheated or underheated, so you don't end up wasting energy.

Open Window Detection

This feature detects a sudden drop in temperature, for example, if you happen to leave a door or window open. It then switches the radiator off so heat isn’t wasted, making it a great energy-saving tool. When a more stable temperature is detected, the radiator turns back on.

How can this function save on heating bills?

Stops heat escaping through open windows or doors, so you get your money’s worth when it comes to energy bills.   

Weekly Programming 

This feature allows you to set up a heating schedule to match your routine. So, if you work certain shifts during the week and only need your heating for a couple of hours in the evening, you can program your radiator to automatically switch on at that time. If you have multiple electric radiators with this function fitted throughout your home, you can even set up a different schedule for every room of the house, suiting your needs perfectly. 

How can this function save on heating bills?

Warmth is provided only when you need it, so you don’t end up heating spaces at the wrong time or when they aren’t in use. Not only will this reduce running costs, but it will help cut down your energy usage too.

WiFi Control 

With WiFi control, you can program your heating through an app on your phone, no matter where you are in the world. If you’re in the office, for example, you can check to see if you have left the heating on and adjust accordingly. You can also access other energy-saving features such as voice control, energy usage statistics and adaptive start, for full and efficient control over your heating.

How can this function save on heating bills?

Even when you’re away from home, you can still remain in control of your heating, so there’s less chance of energy being wasted.  

Go electric with Electric Radiators Direct

If you’re thinking about switching to electric heating, why not opt for one of the most sustainable, effective options? From designer electric radiators to those with smart control capabilities, we have a wide variety of products that cater to different needs. Whichever electric radiator you choose, you can be guaranteed that it will produce long-lasting, eco-efficient warmth for your home. Better yet, most of our radiators are DIY-friendly, and can be installed in a matter of minutes. With Electric Radiators Direct, it’s never been easier to switch to a greener heating alternative.


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