How much does it cost to run an electric blanket

1) Electric Blankets Expensive to Run? (UK)

Electric blankets are a popular choice in the UK for staying warm during the colder months. They provide targeted warmth, help reduce energy bills, and offer comfort on chilly nights. But are they expensive to run? This article breaks down the costs and benefits of electric blankets, their energy efficiency and cost-effectiveness compared to other heating options.

2) Understanding Electric Blanket Costs

The running cost of an electric blanket depends on several factors, including its size, power rating, and the cost of electricity. Most electric blankets consume between 50 to 150 watts of energy per hour, depending on their settings. Larger blankets, such as those designed for a king-size bed, typically use more energy than smaller blankets or heated throws.

3) Calculating the Running Costs

To calculate the running costs of an electric blanket, you need to know the electricity price per kilowatt hour (kWh). As of 2025, the average cost of electricity in the UK is approximately 25p per kWh. Let’s break this down:

1. Power Rating: Suppose a single electric blanket has a power rating of 100 watts (0.1 kW).
2. Hours of Use: If used for 8 hours overnight, the blanket consumes 0.8 kWh.
3. Cost Calculation: Multiply 0.8 kWh by the electricity cost (25p/kWh):

0.8 kWh × 25p = 20p per night.

For a month of nightly use (30 nights), the cost would be £6.20, making it a cost-effective solution compared to heating an entire home with central heating.

4) Comparison with Central Heating

Using central heating to warm entire rooms can be far more expensive, especially when heating bills are high during the colder months. An electric blanket or heated throw focuses warmth on the body, consuming less energy than heating a whole house. This makes it a cheaper option, particularly for those looking to reduce energy consumption.

5) Energy Efficiency of Modern Electric Blankets

Modern electric blankets are designed with energy efficiency in mind. They often feature variable heat settings, allowing users to choose a low setting or desired temperature to suit their needs. Some models include dual controls, enabling two people to set different temperatures on each side of the bed, further enhancing efficiency. In order to keep the most heat in the bed, it’s a good idea to use a thick duvet or comforter which provides a layer of insulation.

6) Key Features for Energy Savings

1. Temperature Settings: Using lower heat settings significantly reduces energy consumption. A blanket operating on a low setting may use as little as 50 watts of energy.
2. Automatic Shutoff: Many modern blankets come with a safety feature that turns off the heating after a set amount of time, preventing unnecessary energy usage.
3. Overnight Use: While electric blankets are safe for overnight use, using a sleep setting or a timer can help save energy and reduce costs.

7) Comparing Heated Throws and Blankets

A heated throw is another excellent option for keeping warm in specific areas, such as the living room. Heated throws are typically smaller and use less electricity than larger electric blankets, making them ideal for single-person use.

8) Factors Affecting Running Costs

Several factors influence the cost of running an electric blanket, including:

1. Size and Power: Larger blankets, such as king-size or double bed models, consume more watts of energy.
2. Usage Duration: The longer the blanket is used, the higher the electricity costs.
3. Temperature Setting: High heat settings use more energy compared to lower heat settings.
4. Condition: A blanket in good condition operates more efficiently. Always follow the manufacturer’s guidelines for maintenance.

Cost Comparison: Electric Blankets vs. Alternatives

9) Hot Water Bottles

While hot water bottles are inexpensive and reusable, they provide localized heat and may not maintain warmth throughout the night. They are a cost-effective way to warm specific areas but cannot match the convenience and consistent heat of an electric blanket. We also need to consider the cost of boiling a kettle or heating the water to put in them. 

10) Electric Heaters

An electric heater can warm an entire room but often consumes 1-2 kWh of electricity per hour, leading to higher energy bills. For example, running a 1.5 kW heater for 8 hours costs £4.08 per night (1.5 kWh × 8 hours × 34p/kWh). In contrast, an electric blanket’s running costs (£6.20 per MONTH) are significantly lower.

11) Central Heating

Heating the whole house with central heating is effective for maintaining overall room temperatures but comes with high energy consumption. For many, relying on an electric blanket during the winter months is a cheaper option to stay warm.

12) Safety and Maintenance

Modern electric blankets come with safety features such as overheat protection and timers, ensuring peace of mind during use. To maximize safety and energy efficiency:

1. Follow the manufacturer’s guidelines for cleaning and maintenance.
2. Check for wear and tear annually.
3. Avoid using the blanket with mattress toppers or protectors that could restrict heat flow.

13) Choosing the Best Electric Blanket

When selecting an electric blanket, consider the following factors:

1. Size: Choose a blanket that fits your bed size, whether it’s single, double, or king size.
2. Variable Heat Settings: Look for models with adjustable temperature settings.
3. Energy Consumption: Check the power rating to estimate running costs.
4. Reviews: Look for products with five-star reviews for reliability and performance.

14) Energy-Saving Tips for Using Electric Blankets

1. Lower Heat Settings: Use the lowest setting that keeps you comfortable.
2. Shorter Duration: Preheat the bed for a short amount of time rather than using the blanket at full power all night.
3. Good Insulation: Pair your blanket with quality bed sheets and duvets to retain heat.

15) Conclusion

Electric blankets are a cost-effective solution for staying warm during the colder months, consuming significantly less energy than central heating or electric heaters. By choosing a modern electric blanket with variable heat settings and using it wisely, you can save on energy costs while enjoying a comfortable night’s sleep. With proper maintenance and thoughtful usage, an electric blanket can provide a warm and economical alternative to heating entire rooms during the cold weather.