Cheapest Electric Heater to Run UK (Most Efficient Options)
If your heating isn’t working or you’re trying to keep costs down, electric heaters can be a quick and convenient solution.
But with electricity prices higher than gas in the UK, choosing the cheapest electric heater to run is essential if you want to avoid high bills.
In this guide, we’ll break down the most efficient types of electric heaters, how much they cost to run, and how to use them properly to save money.
Are Electric Heaters Cheap to Run?
Electric heaters are 100% efficient at the point of use, meaning all the electricity is converted into heat.
However, electricity is significantly more expensive than gas per kWh, which means running costs can add up quickly if used incorrectly.
That said, electric heaters can still be cheap to run in specific situations, such as:
Small rooms
Short-term heating
Backup heating when your boiler is broken
Zone heating instead of heating the whole house
The key is choosing the right type of heater for your needs.
Cheapest Types of Electric Heaters to Run
Not all electric heaters are equal. Some are far more cost-effective depending on how and where you use them.
Infrared Heaters (Best for Spot Heating)
Infrared heaters warm people and objects directly rather than heating the air.
This means less wasted energy and faster warmth.
Best for:
Home offices
Living rooms
Short bursts of heat
Oil-Filled Radiators (Best for Retaining Heat)
Oil-filled heaters take longer to heat up but retain warmth for longer after being switched off.
Best for:
Bedrooms
Longer heating sessions
Quiet operation
Ceramic Heaters (Best All-Round Efficiency)
Ceramic heaters heat up quickly and distribute warmth efficiently.
Best for:
Small to medium rooms
Quick heating
Electric Storage Heaters (Best for Off-Peak Tariffs)
Storage heaters charge overnight using cheaper electricity and release heat during the day.
Best for:
Homes on Economy 7 tariffs
All-day background heating
Fan Heaters (Best for Quick Heat)
Fan heaters provide instant warmth but are usually more expensive to run over time.
Best for:
Short bursts
Emergency heating
Heat Pumps (Most Efficient Long-Term)
Heat pumps are the most efficient electric heating option, producing more heat energy than electricity used.
Best for:
Whole-home heating
Long-term savings
What Affects Electric Heater Running Costs?
Even the most efficient heater can be expensive if used incorrectly. Here’s what impacts your costs:
Electricity price per kWh
Heater wattage (higher wattage = higher cost)
How long you use it
Room insulation
Thermostat settings
For example, a 2kW heater running for 5 hours a day can cost significantly more than a lower wattage unit used efficiently.
How to Reduce Electric Heater Costs
If you want to keep your bills down, follow these simple tips:
Use heaters only in rooms you’re using
Lower the thermostat slightly
Improve insulation around windows and doors
Use timers to avoid unnecessary heating
Close doors to trap heat
Take advantage of sunlight during the day
Wear extra layers to reduce reliance on heating
Small changes can make a big difference over time.
Are Electric Heaters Cheaper Than Central Heating?
In most UK homes, gas central heating is still cheaper for heating the whole house.
However, electric heaters can be more cost-effective when:
You’re heating one room only
Your boiler is broken
You want quick, temporary heat
Can the Best Heating Schedule Help Maximize Efficiency of the Cheapest Electric Heater in the UK?
Using optimal thermostat settings for winter can significantly enhance the efficiency of the cheapest electric heater in the UK. By carefully programming the heater to operate during off-peak hours and maintaining a consistent temperature, households can reduce energy consumption while ensuring warmth throughout the season, maximizing comfort and cost savings.
Final Verdict
The cheapest electric heater to run depends on how you use it.
Infrared heaters are best for targeted heat.
Oil-filled radiators are great for longer use.
Storage heaters work well with off-peak tariffs.
Heat pumps are the most efficient long-term solution.
If used correctly, electric heaters can be a cost-effective way to stay warm without turning on your entire central heating system.
FAQs
What is the cheapest electric heater to run?
Infrared and oil-filled heaters are typically the cheapest to run for most households.
Are electric heaters expensive to run in the UK?
They can be, due to higher electricity costs, but efficient use can keep costs down.
Is it cheaper to leave an electric heater on all day?
No, it’s usually cheaper to use it only when needed and control it with a thermostat.
Can electric heaters heat a whole house?
They can, but it’s usually more expensive than using a gas central heating system.
Are electric heaters safe?
Yes, as long as they include safety features like overheat protection and are used correctly.
