How Many Amps Does An Air Conditioner Use

“How much electricity does an air conditioner consume? This is the most commonly asked question. After all, it will affect the energy cost per month.

The amount of electricity consumed by your air conditioner varies depending on how hot and humid the outside is. When temperatures are high and humidity low, air conditioners can use more power than when the weather is cooler and dryer.

Different brands of air conditioners offer different levels of amp usage. However, the average count will be close by some point. Calculating your AC capacity also depends on what kind of unit you have. There are two main types of units that we will be looking at in this video: Split System Units. Let’s discuss it in detail. 

How Many Amps Does An Air Conditioner Use

How many amps does an air conditioner use?

Air conditioning is a necessity in every home. The average household uses around 7,500 kWh per year. This means that running an AC unit for 12 hours a day would cost $1,200 annually. The amount of energy consumed by your air conditioner depends on several factors.

Air conditioners use about 1 amp per every 500 BTU. So if you want to know how many amps your air conditioning unit uses, multiply by.5. For example, a 5,000 BTUs air conditioner uses ten amps. A 6,000 BTU air conditioning unit uses 20 amps. An 8,000 BTU air-conditioning unit requires 40 amps. An air conditioner that draws 80 amps needs at least a 120V circuit. And a 15,000 BTU air conditioner needs 120 amps. And an 18,000 BTU air conditioner uses 160 amps.

Factors that determine the power consumption of an air conditioner:

The first thing determining whether an air conditioner consumes a lot of electricity is its size and type. A small window unit will require less energy than a large central air conditioner if you have a small window.

  • Next, determine whether or not you are using your air conditioner at total capacity. You can calculate this by multiplying the number of people living in your house by 3 (for each person, there are three rooms they could be occupying). 

For example, if you live with two other people, multiply 2 x 3 6. In this case, you should only be running your air conditioner six hours a day.

  • If you’re using your air conditioner more often than that, then you may want to invest in a larger unit.
  • You also need to consider the season. Air conditioners work best in the summer months because they cool down the air inside your home. They do not perform well in the winter months because they heat up the air inside your home instead of cooling it down.

In summary, the amount of electricity your air conditioner consumes depends on the size of the unit, the number of people in your home, and the season.

How many amps does a window air conditioner use?

The amount of power consumed by a window unit depends upon its size and type. Depending on the model, a typical window unit will draw about 3 to 5 amps when running at full speed. When not in use, it draws less than half that amount.

Most window units have a built-in timer that turns them off after 15 minutes or so. Some models have timers with adjustable settings.

To conserve energy, you could purchase a programmable thermostatic controller. These devices automatically shut off the cooling unit when it’s not being used. You would then set the temperature yourself.

Some window units have a setting called “cool night.” This feature keeps the unit on until 10 PM when it shuts off.

You should find all these options on the manufacturer’s website.

How many amps does a split air conditioner use?

A split system is the most efficient way to cool your home. It uses two compressors and two condensers, which means that you can run it at half capacity and still get great cooling performance. This also makes installing easier because you don’t need to worry about making sure the ducts are large enough for both units.

Split systems usually use about four amps per compressor and condenser. You’ll probably only need one compressor and one condenser if you have a single zone unit. But if you have multiple zones, you may need more than one compressor and condenser.

There are some exceptions to this rule. The first exception is a variable speed fan. Variable speed fans allow you to change the amount of airflow without changing the horsepower required. They also reduce noise levels in the room.

The second exception is a heat pump. They operate similarly to refrigerators, except they use electricity to create a low-pressure area (like a refrigerator) rather than running a motor to push cold air through a coil.

Heat pumps require less energy than air conditioners, so they’re often used where electricity costs are high or during times of peak demand.

Frequently Asked Questions:

How often should I check my air conditioner?

Check your air conditioner every month. The first thing determining the amount of power your air conditioner uses is the size and type installed. Check the blower wheel speed by looking at the number stamped on the back of the blower motor and also clean the coils and fins of the condenser with a brush attachment on a vacuum cleaner.

How much will install an air conditioning system cost me?

Installing an air conditioning system typically costs $1,000 and $2,500. The cost will vary according to the size of your home, the complexity of the project, and any additional services you need. 


We know that air conditioners use a lot of electricity and cost a lot of money. There are other ways besides buying an air conditioner to keep the temperature down inside your house without spending so many dollars. You might want to consider investing in window film if you’re concerned about the amount of sunlight entering your home. It is important to keep this in mind when deciding whether to install air conditioning in your new home. Or you could consider installing ceiling fans to circulate air throughout your home. Whichever air conditioner you use, make sure you know how many amps an air conditioner operates. 

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