Are Electric Fireplaces Expensive to Run?

Electric fireplaces have come a long way. Not so many years ago, they looked clumsy and fake. Now, they look smart, give out real heat, and are easy to fit into any room. But one question keeps coming up.

Are they expensive to run?

The answer depends on a few simple facts. Let’s look.

Electric fireplaces use power measured in kilowatts (kW). Most models use between 1.5kW and 2kW when running at full blast.

The cost of electricity in the UK is around 28p per kWh (as of early 2025). So if you run a 2kW electric fireplace for one hour, it will cost about 56p.

Here is the maths:

2kW x 1 hour = 2kWh

2kWh x 28p = 56p

If you only use the flame effect without heat, the cost drops right down. Some fireplaces use just 0.05kW for the lights, costing less than 2p an hour.

Gas fires are cheaper to run. Mains gas costs around 7p per kWh. If a gas fire uses 3kW, it would cost about 21p per hour.

Wood burners are even cheaper if you get free or low-cost wood. But if you buy kiln-dried logs, it can work out close to electric prices.

Electric fireplaces have other things going for them though:

• No chimney needed
• No messy ash
• No risk of carbon monoxide
• Easy to switch on and off

You are paying a little more for ease and safety.

A few things can push your bills up or down.

Size of the fireplace: Bigger models use more power.

Settings used: Most fireplaces have two settings. Low heat uses less power. High heat costs more.

Room insulation: A well-insulated room keeps the heat in. You will not need the fireplace on for long.

Outside temperature: In mild weather, you might just use the flame effect for cosiness without heat.

Energy prices: These change. Always check your supplier’s rates.

• Use the fireplace for short bursts rather than all day.
• Keep the heat setting on low where possible.
• Only heat the room you are using, not the whole house.
• Make sure windows and doors are closed to trap the warmth.
• Dress for the weather. A warm jumper can save a lot of money.

If you want a clean, easy heat source that looks good, electric fireplaces are hard to beat.

They are more expensive to run than gas. But the ease, the lack of mess, and the safety make up for it for many people.

You also save on installation costs. No chimney, no flue, no fuss.

Are electric fireplaces cheaper than central heating?

They can be if you are only heating one room. Heating a whole house with electric fireplaces would cost a lot more than gas central heating.

Do electric fireplaces use a lot of electricity?

Not really. Most use about the same as two kettles running at once. The flame effect without heat costs pennies.

Is it cheaper to run an electric fireplace or a space heater?

It depends on the size. Most electric fireplaces and fan heaters have the same power rating, around 2kW. So running costs are similar.

Can I leave my electric fireplace on all night?

You can, but it would cost a lot. Better to use a timer or thermostat if your fireplace has one.

How long do electric fireplaces last?

With good care, they can last 10–20 years. Look for models with long warranties and good reviews.