The fact that mini-split systems can both cool and heat individual rooms or spaces makes them very energy efficient. In most cases, a mini-split will use less electricity than central air conditioning or heating systems.

But, “do they use a lot of electricity?”

Mini-splits are a highly energy-efficient option that consumes far less power than conventional central AC and heating systems. The majority of them use around 600 watts per hour. Energy usage, on the other hand, is influenced by many things including usage, temperature settings, and the unit’s condition.

How Much Electricity Do Mini-Splits Consume?

This is a great question. Let’s just say, it depends. You see, it all depends on the make, model, age of the unit, and how it is being used.

For example, a mini-split that is turned on and cooling or heating a room that is already at the desired temperature will use less electricity than one that is constantly running to maintain a comfortable temperature.

In fact, most mini-splits have an auto shut-off feature that kicks in when the desired temperature is reached, further saving on energy consumption.

The average wattage of a mini-split is 600 watts. The typical US household pays about $0.13 per kWh for electricity.

Running your mini-split heating and cooling system 24 hours each day will use 432 kWh monthly, resulting in electrical costs of about $56 per month.

Related: Are Mini Split Systems Gas Or Electric? (BOTH MAYBE?)

How Much Energy Does A Mini-Split consume in Comparison to Other HVAC Equipment?

Take a look at the chart below. You can see that, in general, a mini-split system is much more energy-efficient than other types of HVAC equipment.

Mini-split systems are some of the most energy-efficient types of air conditioners. While portable air conditioners utilize the least power, mini-split AC units use significantly less electricity than central or window AC systems.

Related: How Do I Know If I Have A Heat Pump Or Conventional HVAC System?

Factors that Influence Mini-Split Energy Consumption

Despite the fact that mini-splits are typically among the most energy-efficient heating and cooling systems, they may still use an excessive amount of power on occasion. A number of elements influence a mini-split system’s energy consumption, including:

  • Unit wattage 
  • Temperature settings 
  • Frequency of usage 
  • Unit condition 

Unit wattage 

The amount of watts required to run a system is usually stated in BTUs per hour. Mini-split air conditioners use 700 to 2,000 Watts per Hour.

If all of the zones in a mini-split air conditioner are set to cooling mode, the system will require more wattage per hour.

Temperature settings 

The ideal winter temperature for a house is 68°F, which decreases to 64°F when you’re away. When you’re at home during the summer, the target is 78°F. The aim is to maintain a temperature that is as pleasant in the summer as it is in the winter.

The more extreme the difference in between your selected temperature and the exterior temperature, the higher your energy consumption will be. If you’re constantly raising and lowering the temperature, your system will have to work harder, resulting in more power being used.

Frequency of usage 

The less often your mini-split air conditioner is turned on, the lower your energy consumption will be. If you only use your system a few times a week, it won’t have to work as hard as it would if you were using it every day.

Unit condition 

If your mini-split air conditioner is not properly maintained, it will use more energy than a system that is well-maintained. Regularly cleaning the filters and coils will help to keep your system running efficiently.

How To Reduce Mini-Split Electricity Usage?

  • Cleaning the filter often.
  • Turn the unit off when you’re out of the house.
  • Selecting an energy-efficient model.
  • Avoiding extreme temperature differences.
  • Direct warm-air downward when heating and direct cool air upward when cooling

Cleaning the filter often

By cleaning the filter on your mini-split air conditioner, you can significantly reduce the amount of electricity that it uses. A dirty filter will cause the system to work harder, using more power in the process.

Turning the unit off when you’re out of the house

If you’re going to be away from home for an extended period of time, it’s best to turn your mini-split air conditioner off. This will prevent the system from using any electricity while you’re gone.

Selecting an energy-efficient model

When shopping for a mini-split air conditioner, look for an Energy Star-certified model. These models are designed to be more energy-efficient than traditional air conditioners.

Avoiding extreme temperature differences

As we mentioned earlier, the more extreme the difference between the exterior temperature and your selected temperature, the higher your energy consumption will be. To avoid this, try to maintain a comfortable temperature in your home.

Direct warm-air downward when heating and direct cool air upward when cooling

By directing warm air downward when you’re heating your home and cool air upward when you’re cooling your home, you can minimize the amount of energy that your mini-split air conditioner uses.

FAQs

How much power does a mini-split use per day?

Ductless and mini-split air conditioners consume 600 to 2,000 watts each hour. If all of the zones in a mini-split system are in cooling mode, the device will require more watts per hour.

How much does it cost to run a mini split per month?

The cost of running an air conditioner varies widely, depending on factors like your electricity rate, the number of people in your home and how many rooms you want to cool. On average, an air conditioner costs between $0.06 and $0.88 per hour. Let’s compute how much it costs to run an air conditioner every month.
0.06kWh x 8h/day x 30 days = $14.40 per month
0.88kWh x 8h/day x 30 days = $116.8 per month

How energy efficient are mini-splits?

Mini-split air conditioners are very energy efficient. In fact, they are about 30% more efficient than traditional central air conditioners. Mini-splits also have the advantage of being able to target specific rooms or areas in your home, which further reduces energy consumption.

Related: The Advantages and Disadvantages Of Mini-Split Systems

Does the amount of refrigerant affect the efficiency of a mini-split?

The amount of refrigerant in your mini-split air conditioner does not have a direct impact on its efficiency. However, if your system is low on refrigerant, it will have to work harder to cool your home, which can lead to higher energy consumption.

How many watts does a 12,000 btu mini split use?

A 12,000 BTU mini split uses 1,000 watts of power. This is the equivalent of 10 100-watt light bulbs.

How many watts does a 24,000 btu mini split use?

A 24,000 BTU mini split uses 2,000 watts of power. This is the equivalent of 20 100-watt light bulbs.

How many watts does a 36,000 btu mini split use?

A 36,000 BTU mini split uses 3,000 watts of power. This is the equivalent of 30 100-watt light bulbs.

How many watts does a 42,000 btu mini split use?

A 42,000 BTU mini split uses 3,500 watts of power. This is the equivalent of 35 100-watt light bulbs.

Central ac vs split ac power consumption?

The majority of central air conditioners are in the 3000 to 3500 watt-hour range, although mini-split units can reach as high as 2,000 watts per hour during peak cooling. If you only require limited cooling capacity, a mini-split air conditioner will be considerably less expensive to run.

Which is better window AC or wall AC?

Tonnage is the most important measurement when it comes to cooling capacity in air conditioners. Split ACs, on the other hand, are positioned high up and are meant to cool larger rooms, while window ACs are better suited for smaller spaces with less ventilation. Furthermore, split ACs of a higher tonnage (greater than 2.0) are more energy-efficient than window ACs.

Related: Do Ductless Air Conditioners Need To Be Vented?

Does a 30,000 BTU air conditioner use more power than a smaller unit?

While a 30,000 BTU air conditioner will use more power than a smaller unit, it is not necessarily less energy-efficient. In fact, mini-split air conditioners are often more energy-efficient than traditional central air conditioners, even when they have a higher BTU rating.

How do I know if my mini split is low on refrigerant?

If your mini-split air conditioner is low on refrigerant, it will have to work harder to cool your home, which can lead to higher energy consumption. You can tell if your system is low on refrigerant by checking the pressure gauges on the

Does the size of the compressor affect the efficiency of a mini split?

The size of the compressor in your mini-split air conditioner does not have a direct impact on its efficiency. However, if your system is too small for your home, it will have to work harder to cool your space, which can lead to higher energy consumption.

table – https://hvac-boss.com/cooling/do-mini-splits-use-a-lot-of-electricity

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Passionate about helping households transition to sustainable energy with helpful information and resources.

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