Molly Ayala
Space heaters are a great way to keep warm, but are electric space heaters expensive to run? The answer depends on a few factors, such as the type of heater, its size, wattage, and how long you use it for. For example, a small personal heater can be purchased for as little as $20, while a full-room heater can cost up to $300. The larger heaters are more effective but cost more to run. The cost of running a space heater also depends on your state or municipality's electricity rates. So, if you're looking to cut down on your heating bills, a space heater could be a good option, but it's important to consider the specific circumstances of your situation.
Are electric space heaters expensive to run?
| Characteristics | Values |
|---|---|
| Cost-saving | Using a space heater in the rooms you occupy most and leaving the thermostat even lower for a portion of the day can trim hundreds off of your yearly spend. |
| Cost-saving | Turning down your thermostat and using a space heater can be a big money-saver in winter. |
| Cost-saving | Using a space heater can be an economical alternative to cranking up the heat in one chilly room. |
| Cost-saving | Using a space heater in a room you'll be in for a few hours can save money on heating. |
| Cost | A 1,500-watt space heater running eight hours per day costs about $2 per day, or over $50 a month, based on the average cost of electricity nationally. |
| Cost | A 1,500-watt space heater running four hours a day costs nearly $1 per day, or about $88 for three months of daily winter usage. |
| Cost | The cost to run a space heater depends on how much it is used and the electricity rate. |
| Cost | The cost to run a space heater depends on its size and wattage. |
| Cost | The cost to run a space heater depends on the local electricity rates. |
| Cost | The cost to run a space heater depends on the brand, make, and model. |
| Safety | Space heaters can be a fire hazard if left on overnight or unattended for long periods. |
| Safety | Space heaters are a leading cause of fires in U.S. homes, accounting for 14% of all house fires between 2014 and 2018. |
| Safety | Space heaters should not be left running all day as it is expensive and can lead to overheating. |
| Safety | Space heaters should be set up on a flat surface, at least 3 feet away from other objects, especially flammable objects. |
| Safety | Space heaters should be unplugged when not in use to reduce electricity costs. |
| Safety | Space heaters should be used with sweaters or blankets to warm up instead of turning on the heater. |
| Safety | Space heaters should be used with doors of the rooms closed to avoid heat from leaking to other rooms. |
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What You'll Learn
Cost-effectiveness of space heaters vs. central heating
The cost-effectiveness of space heaters versus central heating depends on several factors, including the size of your home, your heating needs, the climate in your area, and the type of energy source used.
Space Heaters
Space heaters are a good option for small spaces or rooms with inadequate insulation. They are typically used as a supplement to central heating to heat specific areas, such as a home office or bedroom, and can help lower heating bills by allowing you to turn down the thermostat. Space heaters are generally cheaper upfront compared to central heaters, with prices ranging from $20 for a small personal heater to $300 for a full-room heater.
The cost of running a space heater depends on its size, wattage, and the electricity rates in your area. For example, a 1,500-watt space heater running for eight hours a day would cost around $2 per day, or about $88 for three months of daily winter usage. Running it on a lower setting can help reduce electricity usage and costs.
Central Heating
Central heating systems are integrated systems that provide heating throughout an entire home. They are generally more energy-efficient than space heaters, especially when heating large areas or the entire home. Modern central heating systems offer features such as programmable thermostats and zoning capabilities, which help optimize energy usage and reduce costs.
The cost of running central heating depends on the type of fuel used (electricity, natural gas, oil, or propane) and the size of the home. For example, heating an average-sized home with oil using a 75,000-BTU furnace can cost around 50 cents an hour.
Cost-Effectiveness Comparison
The cost-effectiveness of space heaters versus central heating depend on your specific circumstances. If you only need to heat a small space or a single room, a space heater can be more cost-effective, especially if you have high electricity costs in your area.
However, if you need to heat a larger area or your entire home, central heating is likely to be more cost-effective in the long run, as space heaters can consume more electricity or fuel to generate heat, resulting in higher utility bills.
Therefore, it is essential to consider your heating needs and the energy consumption and operating costs of each option before making a decision.
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Energy efficiency of space heaters
The energy efficiency of space heaters is a complex topic that depends on various factors, including the type of heater, its size, wattage, and the cost of electricity in your area. Here are some key considerations:
Type of Heater
The type of space heater you choose can impact its energy efficiency. Electric space heaters are readily available and require a suitable electric receptacle. They are considered nearly 100% efficient since almost all the electricity consumed is converted to heat. However, the true energy efficiency depends on the energy source used to generate the electricity. For example, in places like the UK, electricity costs more than gas, making electric space heaters relatively less energy-efficient compared to gas furnaces, which can achieve over 90% efficiency.
Size and Wattage
The size and wattage of a space heater also play a role in energy efficiency. Larger heaters tend to be more effective in heating bigger spaces but also consume more energy. A typical 1500-watt space heater running for eight hours per day can cost around $2 per day, depending on your electricity rate. On the other hand, a small personal heater may be cheaper to purchase and run, but it might not be as efficient in heating a large space.
Cost of Electricity
The cost of electricity in your area will significantly impact the overall cost of running a space heater. Electricity rates vary across regions, and it's essential to consider delivery charges and taxes that may be included in your bill. Additionally, some states or municipalities have different electricity rates, so the cost per hour of running a space heater can vary.
Energy-Saving Strategies
To improve energy efficiency and reduce costs, consider the following strategies:
- Use a space heater in the rooms you occupy the most and lower the thermostat for the rest of the house. This can help trim hundreds off your yearly energy spend.
- Set your thermostat to a consistent temperature. Turning down your thermostat and using a space heater for local warmth can be a money-saving strategy.
- Insulate your house properly. Adding more insulation can help reduce heat loss and lower overall energy costs.
- Use the lowest setting on your space heater. Lower settings can cut electricity usage almost in half without compromising on comfort.
- Be mindful of safety practices. Always follow safety guidelines, such as keeping the space heater away from flammable objects and never leaving it unattended or running overnight.
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Safety precautions for using space heaters
The cost of running an electric space heater depends on several factors, including the type of heater, its size, wattage, and your local electricity rates.
Now, here are some safety precautions to follow when using space heaters:
- Keep a safe distance from combustible materials: Maintain a distance of at least 3 feet (or more, depending on the heater's height) between the heater and any combustible materials, such as furniture, bedding, curtains, or other flammable items.
- Place the heater on a suitable surface: Always place the heater on a hard, level, and non-flammable surface. Space heaters are designed to be placed on the floor, not on tables or elevated surfaces.
- Establish a kid-and-pet-free zone: Create a 3-foot radius around the heater that is off-limits to children and pets. Never place a space heater in a child's room, and ensure they are supervised at all times when around the heater.
- Avoid using heaters near flammable substances: Do not use space heaters in workshops, garages, or similar areas where flammable materials such as paints, gas cans, or matches are stored.
- Turn off the heater when leaving the room: Always turn off the heater when you leave the room or go to bed. Unplug the heater from the outlet when not in use, and periodically check the cord for any damage. Do not use the heater if the cord is frayed or worn.
- Avoid overloading electrical outlets: Do not plug another electrical device or an extension cord into the same outlet as the heater to prevent overheating.
- Install smoke alarms: Ensure you have working smoke alarms installed on every level of your home and in each bedroom. Test them monthly to ensure they are functioning properly.
- Look for safety features: When purchasing a space heater, opt for models with automatic shut-off features that turn off the heater when it overheats or is accidentally knocked over.
- Use shock protection: If you're using the heater in a damp area, choose a heater equipped with an appliance leakage current interrupter (ALCI) plug to protect against electrical shocks.
- Be cautious of overheating and fire risks: Continuous operation of a space heater can lead to overheating and fire hazards, especially when left unattended or placed too close to combustible materials. Always turn off the heater if you notice any signs of overheating or unusual behaviour.
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How to calculate the cost of running a space heater
The cost of running a space heater depends on several factors, including the type of heater, its size, wattage, and energy efficiency. Space heaters are designed to heat specific rooms or areas of your home and are a great alternative to central heating systems.
To calculate the cost of running a space heater, you need to consider the following factors:
Type of Heater
The type of heater you have will impact the cost of running it. Electric space heaters are typically rated for 1,500 watts at max power, but some heaters have different heat settings, which will affect their energy consumption. A small personal heater may only be 750 watts on a low setting, while a full-room heater can run up to 1,500 watts or more.
Electricity Rates
The cost of electricity in your area will significantly impact the running costs of your space heater. Be sure to check your local electricity rates and factor them into your calculations. The average cost of electricity in the US is around 16 cents per kilowatt-hour, but this can vary depending on your supplier and location.
Usage Patterns
How often and for how long you use your space heater will also affect the overall costs. Using a space heater for extended periods or in multiple rooms can increase your energy consumption and costs. It's important to consider the size of the space you're heating and choose an appropriately sized heater to avoid overspending.
Insulation and Heating Efficiency
The insulation and heating efficiency of your home will also play a role in the cost of running a space heater. Poorly insulated homes or larger spaces may require more heating, increasing the costs. Using a space heater in a well-insulated room can help reduce the overall costs.
Calculating the Cost
To calculate the cost of running your space heater, you can use the following formula:
Wattage of the heater x Hours of usage per day) / 1000 = Daily kilowatt-hours (kWh) consumption
Daily kWh consumption x Electricity rate (cost per kWh) = Daily cost of running the space heater
For example, let's say you have a 1,500-watt space heater that you use for 8 hours per day. The electricity rate in your area is 16 cents per kWh.
1500 watts x 8 hours) / 1000 = 12 kWh
12 kWh x 0.16 = $1.92 daily cost of running the space heater
You can also calculate the weekly, monthly, and annual costs by multiplying the daily kWh usage by the number of days, weeks, or months you plan to use the heater.
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Space heater alternatives
The cost of running an electric space heater depends on several factors, including the type of heater, its size, wattage, and your state or municipality's electricity rates. While a small personal heater can be purchased for as little as $20, a full-room heater can cost up to $300. Larger heaters are more effective in covering larger areas but also cost more to run.
To calculate the cost of running an electric space heater, you can use the following formula:
> watts x hours of usage per day / 1000 x cost per kilowatt-hour = daily cost
For example, a 1500-watt space heater running for 8 hours per day at an electricity rate of $0.163 per kilowatt-hour would cost approximately $1.96 per day.
If you're looking for alternatives to using an electric space heater, here are some options:
- Draft weatherproofing: If you live in an older home, identify areas where heat may be escaping, such as leaky windows, floors, or walls with poor insulation. Caulking around windows and adding window insulation sheets can help reduce heat loss.
- Heated floor mats: As the saying goes, "warm feet, warm body." Heated floor mats are a great way to stay warm, especially if you're working at a desk.
- Heated seat covers: These are perfect for keeping cosy while lounging around or working in an office chair.
- Heated clothing: Consider investing in heated clothing items like vests or jackets, which can be powered by rechargeable battery packs and easily worn under a coat.
- Baking and cooking: On extremely cold days, spend time in the kitchen baking or cooking. This will generate heat and provide you with warm food.
- Duct booster fans: These blower fans are designed to increase airflow through the ductwork, helping to distribute heat more effectively.
- Insulation and airflow: Ensure that all your air registers are open and unobstructed to maximise heat distribution. Adding more insulation to your house can also help retain heat and reduce energy costs.
- Energy-efficient windows: Consider investing in double-paned insulated windows to improve insulation and reduce energy bills.
- Radiant floor heating: This option is popular for adding warmth to specific rooms by heating the floors directly.
- Lower thermostat settings: Turning down your thermostat and using a space heater only in occupied rooms can help reduce overall heating costs.
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Frequently asked questions
The cost of running an electric space heater depends on how often it is used, the wattage, the size of the room, and the local electricity rate. A 1,500-watt space heater costs around $0.20 per hour to run, so you can calculate your costs by multiplying the total hours of use by $0.20.
To calculate the cost of running an electric space heater, you need to know the wattage of the heater, the number of hours it is used, and your electricity rate. Multiply the wattage by the number of hours used, then divide that number by 1,000 to convert to kilowatt-hours (kWh). Finally, multiply that number by your electricity rate per kWh.
Electric space heaters can be more cost-effective than central heating because they allow you to target specific rooms or areas. By heating only the rooms you are using, you can save money during the winter months. However, the cost comparison depends on your local electricity rates and the size of your home.
To reduce the cost of running an electric space heater, you can use it only when necessary, place it in a closed room, and ensure it is a safe distance from other objects, especially flammable ones. You can also lower your thermostat, add insulation to your house, and use extra layers of clothing or blankets to stay warm.
