How Many Watts Does A Space Heater Use

How many watts a space heater uses depends on its size and power. On average, space heaters use 800 -1500 watts. Here, it is important to see how space heaters differ from central heating systems. Space heaters are portable heating appliances that heat one room or a certain area in the house. Consequently, they consume much less power than central heating because they are targeted appliances instead of central appliances.

As heating is considered the most expensive in terms of electricity cost, alternative energy sources are always sought. The Jackery solar generators are a cost-effective and very reliable power source to run space heaters as they have enough Capacity and are very strongly built.

Products	Image	Capacity	Rated / Peak Power	Battery	Size
Solar Generator 3000 Pro		3024Wh	3000W Rated	Lithium-ion Battery	Length: 18.6in(47.3cm) Width:14.1in(35.94cm) Height: 14.7in(37.36cm) Weight: 63.93lbs(29kg)
Solar Generator 2000 Plus		2042.8Wh	3000W Rated/ 6000W peak	LFP (LiFePO4 battery)	Length:14.7in(37.36cm) Width:18.6in(47.3cm) Height:14.1in(35.94cm) Weight:61.5 lbs(27.9 kg)
Solar Generator 2000 Pro		2160Wh	2200W Rated/ 4400W Peak	Lithium-ion	Length:15.1in(38.4cm) Width:10.5in(26.9cm) Height:12.1in(30.75cm) Weight:43lbs(19.5kg)

Space Heater Wattage Key Takeaways

• On average, space heaters consume about 1,500 to 1800 watts of electricity.

• If you use a space heater for 8 hours daily, it will use about 12 kilowatt-hours daily and 84 kilowatt-hours of electricity per week.
• Using it for 6 hours will add up to 9 kilowatt-hours a day and 63 kilowatt-hours a week.
• Keeping the average electricity rate in reference, a space heater may cost you around $51.65 monthly and $258.26 to run for a year.
• Solar generators are the most cost-effective way to power space heaters as they work on zero fuel cost and very minimal maintenance.

How Many Watts Does A Space Heater Use?

An average space heater consumes about 1500 watts an hour, which adds up quickly and makes it expensive. However, using them smartly and at the right time helps you to make them economical. Let us see the average use numbers and how many watts a space heater uses daily and monthly.

The following table summarizes how many watts space heaters use based on their size and duration of use.

How Much Does It Cost To Power A Space Heater?

Once you have calculated how many watts a space heater uses, you can easily find the total cost incurred on heating. Space heaters are fairly energy-efficient, but the energy consumption adds up to a large sum. The average cost to power a space heater depends on the size, type, and hours of use.

Electric Space heater

With 16 cents per kilowatt-hour cost and 5 hours a day usage, the following compares the cost of running different space heaters.

Do Space Heaters Use a Lot of Electricity?

Heating appliances like irons, space heaters, and stoves are the biggest energy consumers compared to other devices. Space heaters can be categorized as medium power-consuming appliances. Let us compare how many watts a space heater uses to the power consumption of other home appliances.

Jackery Solar Generators for Space Heaters

As we already discussed, space heaters are among medium energy-consuming appliances. Using solar generators to power your space heaters significantly impacts your power cost. The Jackery solar power generators are the best choice as they have very solid weather-resistant bodies and can work in extremely high or low temperatures and even in rain.

The Jackery solar generators 3000 pro, 2000 plus, and 2000 pro can power your space heater for hours.

The Jackery Solar Generators 3000 Pro

A large capacity of 3024Wh from Jackery solar generator 3000 pro can power your space heater and many other large appliances. Its multiple-port interface allows you to plug in multiple devices simultaneously. This generator is perfect for space heaters as it is cold-friendly and works up to -20°C /-4°F.

The Jackery Solar Generators 2000 Plus

The Jackery solar generator 2000 plus has an expandable 2-24 kw capacity. Its advanced IBC technology makes fast solar charging within 2 hours possible. It is small, compact, and sturdy, with a LiFePO4 Battery with a 10-year lifespan. Also, its ChargeShield technology provides a unique variable-speed charging algorithm and boosts battery life by 50%.

The Jackery Solar Generators 2000 Pro

The Jackery Solar Generator 2000 pro is an appropriate solution for small space heaters. It features 2160Wh Capacity with a 2200W Inverter. It has superior fast solar charging and can also be charged by an AC outlet. The advanced battery management system ensures safe charging and operation without any risk of overheating or overcharging.

The following table summarizes the working hours of different sizes of space heaters powered by Jackery solar generators.

You can also calculate the solar generator's working hours according to your space heater wattage as;

How to calculate the working hours:

Working time = Capacity Wh * 0.85 / operating wattage of your space heater

For example, a medium size space heater takes 1500W.

A Jackery solar generator 3000 Pro generator working time will be 3024Wh * 0.85 / 1500w = 1.7 hrs.

How do you reduce the space heater cost?

You can save the cost of running your space heater by following some tips.

1. Space heaters are more efficient than central heating because they target the heating resources to specific areas. You can compare the cost of central and space heating and choose the best option.
2. Always cover yourself with warm clothing and blankets, so you need less heating time and thus can save on power, especially at night. Similarly, keep doors closed so that the heat doesn't escape.
3. Proper insulation of attics, windows, and the basement can save about 15% on how much a space heater use
4. Use highly efficient and safe Jackery solar generators to save on power and help the environment with the least carbon footprint.  

Space Heater Wattage FAQs

1. What's the best time to run a space heater?

If you are enrolled in a TOU or time-of-use rate plan, your energy cost varies throughout the day. So, using a space heater during off-peak hours is the best time to run a space heater.

2. What size of solar generator do I need to run a space heater?

The solar generator required for running a space heater depends on how many watts your space heater uses and how many hours you want to run it. The general formula for calculating the working hours on any generator is as follows;

Working time = Capacity Wh * 0.85 / operating wattage of your space heater

We are calculating these hours on 85% capacity because there is always some loss of power during transmission and operation. Hence, this estimate is very realistic and practical.

3. How much does running a 1500-watt heater cost for 24 hours?

It depends on the rate of electricity in your area. If the average rate is $0.16 per kilowatt hour, then the cost of running a 1500W space heater is;

Running Cost (per hour) = Power (W) * Price Of Electricity / 1,000

Cost of running for an hour  =  1500 X 0.16/1000 = 0.24

Cost of running for 24 hours = $5.76

4. Does a space heater use electricity when turned off?

A space heater does not use electricity when turned off. But it is plugged in when not in use and still consumes a very small amount of power.

5.  How long does the space heater run per day?

Space heaters are used for 5-8 hours daily in a typical household.

Final Thoughts

As the big power consumers, heating appliances always have a big overhead on the power cost. Therefore, you need to know how many watts a space heater uses to calculate the cost and then work on its economy. The best solution to reduce power costs is to run high-wattage appliances on solar generators. We recommend Jackery solar generators 3000 pro, 2000 plus, and 2000 pro for running space heaters as they are weather resistant up to -4 degrees. Also, they are safe, reliable, and long-lasting.