How Much Does an Electric Heater Cost to Run?

Discover the costs associated with running electric heaters in the UK. Understand their energy consumption, factors influencing expenses, and tips to heat your home efficiently without inflating your energy bills.

As the British weather predictably oscillates between "a bit nippy" and "utterly freezing," many of us reach for the trusty electric heater to stave off the chill. But with energy prices climbing faster than a squirrel up a tree, it's only natural to wonder, "How much does an electric heater cost to run?" Fear not, for we're about to embark on a warm and witty exploration of watts, pennies and practical advice to keep both you and your wallet cosy.

Watt's the Damage? Calculating Running Costs

Electric heaters, much like the assortment of biscuits in a tin, come in various shapes, sizes, and energy appetites. To determine how much your particular heater is nibbling from your budget, you'll need to consider:

  • Power Rating (kW): This indicates how much energy the heater uses. Common ratings range from 1kW (1000 watts) to 3kW (3000 watts).​

  • Electricity Tariff (pence per kWh): The amount your energy provider charges per kilowatt-hour. As of the latest data, the average UK rate is approximately 34p per kWh.​

  • Usage Duration (hours): How long you run the heater each day.​

The formula to calculate the running cost is:

Running Cost (£) = Power Rating (kW) × Electricity Tariff (pence per kWh) × Usage Duration (hours) / 100​

Example:

Running a 2kW heater for 4 hours:

2 kW × 34p/kWh × 4 hours / 100 = £2.72​

So, an evening's warmth would cost you £2.72.​

Types of Electric Heaters and Their Costs

Different heaters have different habits when it comes to energy consumption:

  • Fan Heaters: These compact devices typically have power ratings between 1kW and 3kW. Running a 2kW fan heater for an hour would cost approximately 68p.​

  • Convector Heaters: Often rated around 2kW to 3kW, these heaters are efficient for warming up rooms quickly. A 2.5kW convector heater running for an hour would set you back about 85p.​

  • Oil-Filled Radiators: Known for their heat retention, they usually have power ratings between 1.5kW and 2.5kW. Operating a 2kW oil-filled radiator for an hour costs roughly 68p.​

Factors That Influence Running Costs

Several elements can affect how much your electric heater adds to your energy bill:

  • Thermostat Settings: Setting the thermostat too high can lead to unnecessary energy consumption. Aim for a comfortable temperature and let the heater maintain it.​

  • Room Size and Insulation: A well-insulated room retains heat better, reducing the time your heater needs to operate. Conversely, draughty spaces can cause heat (and money) to escape.​

  • Heater Efficiency: Modern heaters with energy-saving features like timers and eco-modes can help reduce running costs.​

Tips to Keep Warm Without Burning Through Your Budget

To enjoy the warmth without the financial burn:

  1. Use Timers and Thermostats: Set your heater to operate only when needed and maintain a steady temperature.​

  2. Insulate Your Space: Simple measures like draught excluders, thick curtains, and rugs can help keep the heat in.​

  3. Dress Warmly: Layer up with cosy clothing to reduce reliance on heaters.​

  4. Consider Alternative Heating: For personal warmth, devices like electric blankets or heated throws can be more cost-effective.

Conclusion

So, how much does an electric heater cost to run? While the exact figure depends on the heater's power rating, your electricity tariff, and usage habits, being mindful of these factors can help you manage and potentially reduce your heating expenses. By adopting energy-efficient practices and perhaps investing in a more efficient heater, you can stay snug without feeling the pinch. After all, a warm home and a happy wallet make for a delightful duo.​