Wiktor Wise
Electric radiators are a popular choice for homeowners and renters alike, offering a convenient way to control the temperature of individual rooms. However, with rising energy rates and the high cost of electricity, a common concern is whether these radiators are expensive to run. This decision involves weighing the initial purchase price, running costs, and long-term expenses. The cost of running electric radiators is influenced by factors such as power consumption, usage duration, room size, local electricity prices, and thermostat settings. While electric radiators are generally considered more expensive than gas central heating, their efficiency in converting electricity into heat and the ability to control room temperatures can lead to potential savings.
| Characteristics | Values |
|---|---|
| Pros | Portable, easy to install, easy to use, low maintenance, control over temperature and timing settings, energy efficiency, cost-effectiveness, precise thermostat controls, programmable settings, no wasted heat through pipework, consistent heat distribution |
| Cons | Can be expensive to run, especially with prolonged use, larger room sizes, or colder conditions, higher electricity costs, heat is quickly lost when unplugged |
| Factors Influencing Cost | Type of radiator, power consumption, usage duration, local electricity prices, room insulation, heater efficiency, wattage, thermostat settings, room occupancy, room temperature, size of the room, type of electricity tariff |
| Cost Calculation | (Radiator output (kW) x hours in use) x pence per kWh = daily cost of radiator |
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What You'll Learn
Electric heaters vs. central heating
Electric heaters and central heating systems each have pros and cons, and the best option for you will depend on your specific needs and situation. Here is a detailed comparison of the two heating methods:
Electric Heaters
Electric heaters are a popular choice for those seeking a quick and convenient way to heat a single room or a small space. They are typically portable, easy to install, and provide fast heat without the need for a central heating system. Electric heaters are also a good option for renters or homeowners who want more control over the temperature in each room. Additionally, electric heaters often have lower upfront costs compared to central heating systems.
However, one of the main drawbacks of electric heaters is their energy consumption. They may consume more electricity to generate heat, leading to higher utility bills, especially if used for prolonged periods, in larger rooms, or in colder conditions. The cost of running an electric heater can vary depending on factors such as wattage, usage duration, efficiency, local electricity prices, and room insulation. Therefore, it is important to consider not only the initial purchase price but also the ongoing expenses associated with electric heaters.
Central Heating Systems
Central heating systems, on the other hand, are integrated systems that provide heating throughout an entire home. They distribute warm air evenly, maintaining a consistent temperature in multiple rooms. Central heating systems are often more energy-efficient than electric heaters, especially in well-insulated homes. Modern central heating systems also offer advanced features such as programmable thermostats and zoning capabilities, which can help optimize energy usage and reduce costs.
While central heating systems may have a higher initial investment, they can be more cost-effective in the long run, especially if you are heating multiple rooms. The type of fuel used in central heating systems, such as natural gas, oil, or electricity, can also impact the overall cost. It is worth noting that turning the central heating on for an extra hour or using it to heat a single room can be more expensive than using an electric heater for a quick burst of heat.
In summary, electric heaters are ideal for renters, those seeking more control over room temperatures, or individuals looking to heat a single room or small space quickly and conveniently. On the other hand, central heating systems are more suitable for heating multiple rooms or an entire home efficiently and consistently. The most suitable option for you will depend on your specific needs, the size of the space you want to heat, the level of insulation in your home, and your energy usage patterns.
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Running costs
Electric radiators are considered to be more expensive to run than gas central heating. However, they are more cost-effective when heating a single room than a whole house. Electric radiators are also more energy-efficient than gas central heating. They convert all the electricity they use into heat, ensuring minimal energy is wasted, and there is no wasted heat through pipework.
The cost of running an electric radiator depends on several factors, including the type of radiator, its power consumption, how often it is used, local electricity prices, thermostat settings, room insulation, and the heater's efficiency. For example, an 800-watt electric radiator used for seven hours a day, with electricity costing 16 pence per kilowatt-hour, would cost about 89.6 pence per day.
The initial purchase price of an electric radiator also varies based on the type and features. Smart radiators, for example, can be controlled via Wi-Fi or a smartphone app, allowing individual temperature and timing settings for each radiator. This can help to keep track of energy usage and potentially reduce costs.
To calculate the cost of running an electric radiator, you can use the following formula: (radiator output in kilowatts x hours in use) x pence per kilowatt-hour = daily cost. It is important to note that the cost of electricity has been rising, and electricity tariffs may vary, impacting the overall cost.
Additionally, the thermostat setting affects the cost of running an electric radiator. According to the Carbon Trust, heating costs will increase by 8% for every 1-degree Celsius increase in the thermostat setting above 19 degrees Celsius. Therefore, it is recommended to set lower temperatures in unoccupied rooms.
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Energy efficiency
Electric radiators are designed to maximise the use of electrical energy, minimising heat loss and maximising comfort. They are 100% energy efficient, meaning all the energy they use is converted into heat. This is in contrast to traditional space heaters, which use gas or oil, and therefore require ventilation. Electric radiators do not need ventilation, so they can be placed anywhere in the home.
The cost of running electric heaters can increase with prolonged use, larger room sizes, or colder conditions. The wattage, usage duration, and efficiency of the heater will impact the overall expense. For example, an 800W electric radiator used for 7 hours a day, with electricity costing 16p per kWh, would cost approximately 89.6p per day to run.
The US Department of Energy recommends that US households set their winter home temperature to around 68°F during the daytime and a few degrees lower at night or when the home is empty to save on energy costs. This can be easily achieved with electric radiators, which often feature thermostatic controls that allow users to set the optimum temperature for their space. When the set temperature is reached, the radiator will switch off automatically, preventing wasted energy.
The placement of the radiator can also impact its efficiency. For example, placing a heater under a window can increase comfort as the warm air rises to the ceiling and falls back at the opposite wall, creating a gentle current of warm air. This doesn't change the energy balance or efficiency but can make the room feel warmer, allowing you to lower the thermostat by 1°F and save energy.
Overall, electric radiators are a highly energy-efficient way to heat a space, offering several features that help to minimise energy wastage.
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Installation and maintenance
Electric radiators are generally easy to install and require minimal setup. They are less costly to install than many other heating systems as they don't require pipework or gas connections, and you don't need annual checks. Many electric radiators come with wall-mounting templates, allowing you to hang them on the wall yourself. However, if your new electric radiator requires electrical sockets to be added or moved, you must hire a qualified electrician.
Electric radiators are also low maintenance, as they don't rely on a central boiler to work, and you don't need to bleed them as you would in a central heating system. They have a long lifespan due to their simple design and lack of moving parts, resulting in fewer replacements and better cost management over time.
To reduce the costs of running electric radiators, you can implement some simple energy-saving tips and maintenance practices. These include programming radiators for specific times, using smart controls to turn off heating when no one is home, heating only used rooms, customising room temperatures, taking advantage of lower night rates, and regularly maintaining your radiators.
Additionally, consider the factors that affect the running costs of electric radiators, such as the current electricity price, the size and type of the radiator, and the wattage. For example, a higher wattage oscillating heater may be more suitable for heating a larger space, while a smaller room may be efficiently warmed using a radiator's lower wattage heating element.
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Thermostat settings
The thermostat setting is a key factor in determining the expense of running a portable electric radiator. The cost of running an electric radiator is influenced by factors such as the heater's wattage, usage duration, and efficiency. The thermostat setting determines the power output and the duration of usage, which in turn affects the overall cost.
Electric radiators with inbuilt digital thermostats are known for their accuracy. The thermostat's accuracy is indicated in the technical specifications, for example, 'accurate to +/- 0.2°C' or 'accurate to +/- 0.3°C'. The lower the number, the more accurate the thermostat. Accurate thermostats allow for better temperature management and control, reducing energy wastage by heating rooms only to the desired temperature.
Programmable thermostats in electric radiators allow users to decide when and for how long the radiator runs. This can help save money, as it is usually cheaper to heat rooms only when necessary. Leaving the radiator on constantly, especially in unoccupied rooms, can increase energy bills.
To save on costs, it is recommended to set rooms that are not occupied to lower temperatures. According to the Carbon Trust, the heating cost will increase by 8% for every 1-degree increment above 19°C on the thermostat setting.
Additionally, by heating only the rooms in use, significant cost savings can be achieved. Smart heating controls and timers on thermostats allow for easy adjustment of temperatures in different rooms, ensuring energy efficiency and reduced costs.
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Frequently asked questions
Electric radiators are considered more expensive to run than gas central heating. However, they are more energy-efficient as they convert all the electricity into heat and distribute it consistently. They are also easy to install and can be controlled via your smartphone, making them a convenient option for renters and those looking for a quick burst of heat.
The cost of running an electric radiator depends on various factors, including the radiator's wattage, usage duration, efficiency, local electricity prices, and room insulation. You can calculate the cost by multiplying the radiator's wattage by the hours used and the pence per kWh.
Electric radiators are more energy-efficient than gas central heating as they convert all the electricity they use into heat and distribute it evenly. They also have precise thermostat controls, reducing energy wastage by heating rooms only to the desired temperature.
Electric radiators offer several advantages, including energy efficiency, consistent heat distribution, precise thermostat controls, and programmable settings. They are also easy to install and use, making them a convenient option for renters and homeowners who want room-specific temperature control.
Yes, there are alternative space heaters such as fan heaters, halogen heaters, and oil-filled radiators. Fan heaters are ideal for small rooms as they quickly circulate warm air. Halogen heaters have lower power output, making them cheaper to run. Oil-filled radiators retain heat better and provide long-lasting heat.
