On average, space heaters use 1,500 watts of electricity. Using a space heater 8 hours per day will use about 84 kilowatt-hours of electricity per week. It costs an average of $51.65 to run a space heater for a month and $258.26 to run for a year. The best way to save on electricity is to install solar panels.
Pretty much everybody can do it. Example (you can use an electric heater running cost calculator below for different wattages/kWh prices): If we assume the price of electricity is $0.1319 per kWh, a 1,500-watt electric space heater will cost; $0.20 to run per hour. $4.80 to run per 24 hours (day).
Space heaters can take anywhere from 750 watts to 3,000 watts to operate. Large space heaters take immense amounts of energy to run. However, those are most likely used only in commercial and industrial settings. The average residential space heater has two main heat settings, low and high.
Generally central heating will be cheaper than running space heaters for the entire house, but if you are just trying to heat a bedroom or other small space the space heater could be more efficient. A lot of times there are dampers on the vents of the central heat so you can shut off heat to less used areas.
Keep in mind that many of the space heaters we've tested are claimed to heat only about 150 to 200 square feet. Most use 1,500 watts when on the highest heat setting, which costs about $2 per 8-hour day or over $50 a month based on the average cost of electricity nationally (local costs vary).
Running a space heater overnight increases the risk of fire. If the unit is left unattended or placed too close to flammable materials, such as curtains or bedding, it can ignite and lead to a devastating fire.
Savings using a space heater for 8 hours per day
Those with electric heat save less -- about $72 respectively -- and folks with natural gas, which is currently cheap, would pay about $36 more than if they ran a space heater.
If someone is at home in the daytime, 72° F (22° C) is a good start, but aim for 68° F (20° C). If everyone is away from home in the daytime or you're asleep at night, we feel 66° F (19° C) to 62° F (17° C) is best.
Far Infrared Heaters are the most efficient of all the space heater options and consume the lowest wattage, making them the cheapest to run. Far Infrared is radiant heating and is most easily absorbed by people's skin. In fact, all objects, including us emit and absorb infrared.
Con: Fire and Burn Risk
The National Fire Protection Association warns that space heaters account for more than 40% of all home heating-related fires. Space heaters are also responsible for most fire-related deaths during winter, and they account for thousands of burn-related injuries each year.
Ceiling fans, tower fans, and box fans typically range from 40 to 100 watts of power when operating at full speed. This amount of electricity is not very much, especially compared to the other appliances and electronics in your home. At its lowest setting, a fan may only use about 10 to 30 watts.
Halogen heaters are among the most cost-effective electric heater options, with a typical power output of 1200W. Their immediate warmth in close proximity saves energy by not needing to be left running for long stretches of time.
How much electricity does a TV use? Generally, TVs use between 50 to 200 watts (W) of electricity, depending on the model. Most TVs use less than one amp and connect to a 120-volt outlet. Older TVs that use technology such as Plasma and CRT are much less efficient compared to newer LED and LCD TVs.
So 12kWh x $0.163 = $1.96 per day. Bottom line: Your 1,500-watt space heater running eight hours per day will cost you about two dollars per day to operate, depending on your electricity rate.
If you have a 2100W (2.1 kW) washing machine and you run it for an hour, it'll use 2.1kWh of electricity in that hour. If electricity costs 34p per unit, multiply 2.1kWh by 34p and you get a grand total of 71p. Bingo, that's how much your washing machine costs per hour.
Really, it all depends what kind of heater you're looking for and more importantly how you use it. It's also important to note that, if used for over long periods of time, electric room heaters can be expensive to run (as electric is more expensive than gas).
Average Daily kWh Consumption
Now that you know what a kWh is, how much energy does the average household use per day? According to the U.S. Energy Information Administration (EIA), the typical U.S. home uses about 30 kWh per day, or approximately 900 kWh per month.
"Buying a space heater for every room would increase the electricity bill more than if you had just bumped up the thermostat," Mikelann Scerbo, research manager for the Alliance to Save Energy, told Save on Energy.
Tubular heaters are the cheapest electric heater to run this winter, offering efficient heating at low operational costs. In this article, we'll explore various types of electric heaters—including halogen, oil-filled, fan, and tube heaters—comparing their energy consumption, performance, and unique features.
If you use a space heater in your home, please be aware that using a space heater can cause a significant increase in your monthly bill. A 1,000-watt space heater operating 12 hours a day will add about $40 to your monthly bill. If the cost does not deter you, remember how important it is to use space heaters safely.
Does a Space Heater Use Electricity when Turned Off? A space heater does not use electricity when it is turned off, however, it does still draw a small amount of power when it is plugged in and not in use. This is referred to as a "phantom load" or "standby power".
Radiant heaters emit infrared radiation that directly heats objects and people within their line of sight, and are a more efficient choice when you will be in a room for only a few hours and can stay within the line of sight of the heater.
The duration for which you can leave a space heater running depends on the time of day and your specific needs. During the Day: It's safe to leave your heater on for 6-8 hours if you're in the room. If you're busy or moving between rooms, consider using a timer to automatically shut it off after a few hours.