
Electric heaters are a common way to warm up your home, but how much do they cost to run? The cost of running an electric heater depends on a few factors, such as the size and type of heater, the price of electricity in your area, and the power output of the heater. For example, fan heaters are a good choice for quickly heating specific areas of a room, while oil-filled radiators retain heat better than other heaters. Proper insulation is also important, as it can help keep heat in and reduce draughts, lowering your energy bills. Additionally, space heaters are designed to heat specific rooms, making them a more cost-effective option than central heating systems that heat multiple rooms at once.
| Characteristics | Values |
|---|---|
| Cost of running an electric heater | Depends on the size and type of heater, the price of electricity in your area, and the duration of usage. |
| Average cost of electricity in the US | 15.5 cents per kilowatt-hour or kWh |
| Average cost of electricity in the UK | 25.73p per kWh |
| Average space heater wattage | 750-1500 watts |
| Average cost of running a 1500-watt space heater | $0.20 per hour |
| Average cost of running a 1500-watt space heater for 5 hours | $2.79 |
| Average cost of running a 1500-watt space heater for 5 hours daily for 18 days | $50.22 |
| Average cost of running a space heater for 8-10 hours daily for a month | Multiply total hours of use by $0.20 |
| Average home HVAC system wattage | 3000-3500 watts |
| Ways to reduce running costs | Insulation, heavy curtains, blinds, draught excluders, loft and cavity wall insulation, double glazing, and keeping doors closed |
Explore related products
What You'll Learn

Electric heaters vs. central heating
The cost of running an electric heater depends on several factors, such as the type of heater, its power consumption rating, the duration of use, and the cost of electricity.
Electric heaters are generally more expensive to run than central heating systems, especially over long periods. This is because electricity is often more costly than gas, and central heating systems can distribute heat more efficiently throughout an entire home. However, if your home has poor insulation, or you only want to heat a single room, electric heaters can be a more cost-effective option.
Space heaters, for example, are portable and designed to heat specific rooms or areas, allowing you to target your heating efforts to the room you're using. They are also cheaper upfront compared to central heating systems. However, they may consume more electricity or fuel to generate heat, leading to higher utility bills over time.
Central heating systems, on the other hand, are integrated systems that provide heating throughout the home. While they have a higher initial investment, they are generally more energy-efficient. Modern systems come with programmable thermostats and zoning capabilities, allowing you to optimize energy usage and reduce costs.
To calculate the exact cost of running an electric heater, you need to know its power consumption rating (e.g., 3kW) and the cost of electricity per kilowatt-hour (kWh) from your energy bill. For example, if you run a 3kW heater for an hour, you use 3kWh of electricity.
As of July 2025, the average electricity price in England, Scotland, and Wales is 25.73p per kWh. So, running a 3kW heater for an hour would cost approximately 77p (25.73p x 3kWh).
It's worth noting that the cost of electricity can vary, and different types of electric heaters have varying wattages and features, such as thermostatic controls and timers, which can impact their running costs.
Additionally, there are alternative options to consider, such as gas furnaces, which can offer better efficiency and pricing. Other alternatives include hot water bottles or electric blankets, which use a fraction of the energy an electric heater would use and are portable.
In conclusion, while electric heaters offer flexibility and are suitable for targeted heating, central heating systems are generally more cost-effective for heating larger spaces or entire homes, especially with proper insulation.
Electric Poles: What's the Standard Distance?
You may want to see also
Explore related products

Insulation and draught-proofing
Electric heaters are designed to heat specific rooms or areas of your home. They are great alternatives to central heating systems, which heat multiple rooms at a same time. However, electric heaters can be expensive to run if used for long periods of time. To reduce the running costs of electric heaters, it is important to focus on insulation and draught-proofing.
Insulation provides resistance to heat flow and helps to lower heating and cooling costs. It slows down conductive and convective heat flow, while radiant barriers and reflective insulation systems reduce radiant heat gain. The effectiveness of insulation depends on the type, thickness, density, temperature, aging, and moisture accumulation. Installing more insulation increases the R-value, which measures thermal resistance, and improves insulation effectiveness. Loose-fill insulation, for example, may experience compression and a reduction in R-value. To determine the optimal insulation for your climate, consult a local insulation contractor.
Draught-proofing is another effective way to reduce heat loss and lower energy bills. Simple solutions such as heavy curtains, blinds, and draught excluders can make a significant difference in retaining heat. Loft and cavity wall insulation, as well as double-glazing, can also dramatically reduce heating costs. Financial support for insulation may be available through initiatives like the Great British Insulation Scheme (GBIS).
By combining proper insulation and draught-proofing measures, you can reduce heat loss, improve energy efficiency, and lower the running costs of your electric heaters.
Grounding a Metal Pole: Achieving Electrical Safety and Stability
You may want to see also
Explore related products
$109.99
$129.99 $169.99

Running costs of different heaters
The running costs of different heaters vary depending on the type of heater, the size of the area being heated, the length of usage, and the price of electricity in a given area.
Space heaters, for instance, are portable electrical appliances designed to heat specific rooms or areas of a house. They are a great alternative to central heating or HVAC systems, which heat multiple rooms at a time. The average space heater takes between 750 watts and 1,500 watts to operate, costing around $0.20 per hour to run. However, the amount of electricity used by a space heater varies by brand, make, and model.
Fan heaters are another option, typically available at 2000W, and are useful for quickly heating a small room. Oil-filled radiators are also an option, with an average wattage of 1500W, and they retain heat better than other room heaters, continuing to radiate heat for a short while after being switched off.
The power or energy rating (watts or kWh) will dictate the running cost per hour of any heater. The cost of electricity is measured in kWh (kilowatts per hour) for a standard rate, and bigger heaters will typically use more watts. The U.S. Energy Information Administration states that the average cost of electricity in the US is 15.5 cents per kilowatt-hour or kWh. An electric heater for a home may use up to 4.5kWh per hour, depending on variables like space heated and time operated. If the electric heating system is run for five hours at this rate, it would cost $2.79 for the day.
To reduce running costs, it is important to keep the heat in, as poor insulation can cause up to 25% heat loss. Low-cost solutions such as heavy curtains, blinds, and draught excluders can help, and loft and cavity wall insulation, as well as double glazing, can also reduce heating bills.
Effective Cleaning Methods for Your Pure Enrichment Electric Throw
You may want to see also
Explore related products

Calculating the cost of running an electric heater
The cost of running an electric heater depends on several factors, including the type of heater, its power output, the duration of use, the space being heated, and the price of electricity in your area. Here are some ways to calculate the cost of running an electric heater:
Understanding the Basics
Firstly, it's important to understand the relationship between watts, kilowatts, and kilowatt-hours (kWh). Watts measure the power output of an appliance, while kilowatts are simply watts divided by 1,000. Kilowatt-hours measure the energy consumption of an appliance over time, with one kilowatt-hour representing the use of one kilowatt of power for one hour.
Calculating Electricity Costs
To calculate the cost of running an electric heater, you need to know the heater's power output in watts or kilowatts. Most space heaters operate between 750 and 1,500 watts, which is equivalent to 0.75 to 1.5 kilowatts. You can then multiply the power output by the duration of use in hours to get the energy consumption in kilowatt-hours. Finally, multiply the kilowatt-hours by the cost of electricity in your area to get the total cost.
Using Online Calculators
Online calculators can also help estimate the cost of running an electric heater. These calculators consider factors such as heater type, wattage, usage duration, and local electricity rates to provide a more accurate estimate. Websites like Perch Energy and Sust-it offer such calculators to help you compare the running costs of different electrical appliances.
Reducing Running Costs
To reduce the running costs of electric heaters, consider using them intermittently rather than for extended periods. Additionally, improve your home's insulation by sealing drafts, using heavy curtains, and investing in loft and cavity wall insulation. These measures will help retain heat and reduce the need for prolonged heater use.
Portland's Energy Sources: Coal-Burning Electricity and Beyond
You may want to see also
Explore related products
$49.99 $79.99
$111.99 $139.99

Eco-friendly heating alternatives
Electric heaters are designed to save you money on heating by allowing you to target specific rooms. However, they can be expensive to run if used for long periods, as electricity is more expensive than gas. Electric heating also produces the most CO2 emissions.
Heat Pumps
Heat pumps extract heat from the environment outside and pump it into your house. For every unit of electricity used, it will provide 3 units of heat, making it the most efficient form of heating. Heat pumps can reduce your carbon footprint from heating by 80% or more. There are three types of heat pumps: ground source, water source, and air source. Ground source heat pumps require a lot of space, as pipes are buried in trenches 1.5+ metres deep. Water source heat pumps require a nearby lake, stream, or well. Air source heat pumps attach to the outside wall of the building and look similar to AC units.
Electric Boilers
Electric boilers are another eco-friendly alternative to gas boilers. However, they may not reduce your energy bills, as electricity is often more expensive than gas.
High Heat Storage Heaters
High heat storage heaters use electricity at night to warm up heat bricks, which slowly release heat during the day. They are much better at providing heat when you need it compared to old-fashioned storage heaters. They also come with individual room controls, and better models match energy input to outside temperatures.
Solar Thermal
Solar thermal heaters use solar energy to heat your home. However, they are not suitable if you use an electric shower for most of your bathing.
Insulation
Proper insulation in attics, windows, and basements can help reduce heating costs. An energy audit can help you identify areas where you can improve your home's efficiency.
Community Solar Projects
Joining a community solar project can help you save on your electricity bills and support the generation of clean, solar energy.
Water Heaters
If you are specifically looking for an eco-friendly water heater, consider a tankless or on-demand water heater. These systems only heat water when you turn on the tap, eliminating the need to maintain a tank of hot water. Heat pump water heaters are another option, leveraging the principles of refrigeration to extract energy from the air and use it to heat the water.
Maximizing Electrical System Efficiency: Round-Trip Analysis
You may want to see also
Frequently asked questions
The cost of running an electric heater depends on the wattage, the price of electricity in your area, and the time operated. The average 1500-watt space heater costs around $0.20 per hour to run.
To reduce costs, you can improve your home's insulation by using heavy curtains, blinds, draught excluders, loft and cavity wall insulation, and double glazing. You can also use sweaters or blankets to keep warm instead of turning on the heater.
Electric heaters are good for heating specific rooms, whereas central heating systems heat multiple rooms at a time. Space heaters are more cost-effective for heating a single room, but an HVAC system may be more efficient for heating large areas like a full home.
Fan heaters are good for quickly heating specific areas of a room, as you can direct the heat. Oil-filled radiators retain heat better than other room heaters, as they continue to radiate heat for a short while after being switched off.











































