How Much Electricity Does a Space Heater Use?

First things first, a little disclaimer from us.

Disclaimer: While space heaters can provide additional warmth during the winter, they must be used with caution to prevent electrical fires. Always follow the manufacturer’s guidelines, avoid using extension cords, and ensure the heater is placed on a stable, non-flammable surface. Keep space heaters away from curtains, furniture, or any combustible materials. Never leave them unattended or running overnight. For added safety, choose models with automatic shut-off features and inspect cords for damage regularly.

space heater sitting on a table

Winter’s icy grip is tightening and with it the dreaded increase in heating costs. You want to stay warm and cozy, but you don’t want to break the bank. Space heaters seem like a convenient solution, but are they cost-effective?

Understanding Space Heater Electricity Usage

man studying his high electric bill

Before we dive into the numbers, let’s get familiar with the basics:

Wattage and Kilowatt-hours (kWh):

  • Wattage measures the power an appliance uses. Space heaters typically range from 750 to 1500 watts.  
  • Kilowatt-hours (kWh) are used to measure your electricity consumption and calculate your bill. One kilowatt-hour is equal to using 1000 watts for one hour

Calculating the Cost of Running a Space Heater

Now, let’s get down to the dollars and cents. Here’s how you can estimate the cost of running your space heater:

Formula: (Wattage x Hours Used x Electricity Price per kWh) / 1000

Example: You have a 1500-watt space heater; your electricity rate is $0.15 per kWh. If you run the heater for 8 hours a day:

Daily cost: (1500 watts x 8 hours x $0.15/kWh) / 1000 = $1.80

Monthly cost (30 days): $1.80/day x 30 days = $54.00

Cost Comparison

a wooden heating stove that has a cozy fire built.

While space heaters can be efficient for targeted heating, it’s important to compare their costs to other heating options:

  • Central heating: While space heaters can supplement your central heating system, relying solely on them for whole-house heating can be more expensive than running your furnace, especially in larger homes.
  • Fireplaces: Fireplaces can be cozy, but they can also be inefficient and lose a lot of heat through the chimney. 
  • Heat pumps: Heat pumps are highly energy-efficient and can provide heating and cooling, but have a higher upfront cost.

Alternatives to Consider

While space heaters can be a valuable tool for managing your heating costs, it’s worth exploring other energy-efficient options:

  • Heat pumps: Highly efficient systems that can provide heating and cooling, offering significant long-term savings.  
  • Smart thermostats: These programmable thermostats allow you to optimize your heating schedule and remotely control your system, reducing energy waste.  
  • Insulation upgrades: Improving your home’s insulation can significantly reduce heat loss and lower overall heating costs.

Conclusion

Space heaters can be a cost-effective way to stay warm this winter, but only when used strategically and efficiently. 

By understanding their electricity usage, calculating your potential costs, and implementing the tips we’ve shared, you can keep your home warm without breaking the bank.

Don’t forget to explore alternative heating solutions for even greater long-term savings and environmental benefits. Stay warm and save smart!

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