The number of watts air conditioning systems use varies based on the type, size and model of the unit. As we are typically asked this question a lot. We have decided to release an approximate guide on watt usage related to air conditioning.
With air conditioning the rough estimates related to their watt usage are:. There are many reasons why an air conditioner will need more watts to function properly. Here are some causes which might determine the watts usage rate of air conditioning:. For more information on energy ratings and how they influence air conditioners, visit Energy Rating.
The energy rating of an air conditioning unit will drastically influence how many watts the aircon uses so it is important to purchase emergency efficient systems. There are many ways which the bills can be lowered when an air conditioning unit is within a building. Linking with watts, these factors can be related to how much electricity is used and how hard the system runs.
Knowing ways to reduce watt usage and other areas is an advantage which can see positive changes in energy bills. As mentioned, choosing air conditioners which have a higher energy star rating will mean that it will use fewer watts. Therefore, the system will need less electricity and lower the electrical bill. We have gathered the most energy-efficient portable AC units here. For that, we use this EER equation:. If we presume that an average EER rating of a window AC unit is 10, we can easily calculate how many watts do window air conditioners with certain BTU cooling output draw.
Such a window air conditioner uses 1, watts. We can use the same principle to calculate how many watts do portable and mini-split air conditioners use:.
Portable air conditioners use, on average, more watts than window AC units. Mini-split air conditioners are more energy-efficient than the window and portable AC units and thus draw fewer watts and amps for the same cooling output. To answer how many watts does your mini split AC unit use, you can consult this table with presumed 12 EER rating for all units :.
However, it will need about 3, watts or even 3, watts start-up wattage. When you figure out how many watts does an air conditioner draws, you can calculate how much it costs to run such an AC. That is, if you have a continuous source of electricity, which brings us to the next chapter:. Here are some of the generators you can use:. In the state of Arizona, electricity costs an average of With this piece of information, calculating your energy costs is fairly easy.
Simply divide your watt per hour estimate by and then multiply the result by Rather, they cycle on and off as needed. Keep in mind that these are Arizona-specific figures based on average air conditioner energy usage and electricity costs. The exact numbers will differ depending on where you live. Numbers in states like Arizona, Nevada, and New Mexico are nearly double what people in cooler states pay, according to federal energy statistics.
Air conditioner capacity is, unsurprisingly, the biggest determinant of energy usage. Experts measure capacity based on British thermal units. Of course, not all air conditioners providing the appropriate number of BTUs will operate at the same efficiency. It represents the ratio of cooling output per season divided by the number of watts used per hour. Federal regulations require a minimum SEER rating of 13 or 14 depending on your environment but you can find units with ratings as high as Those additional BTUs will equate to greater energy usage.
At American Home Water and Air, we recommend having your air conditioner professionally serviced at least twice annually to keep it running at peak efficiency. To calculate AC power consumption first connect your AC plug into the kill a watt meter and then plug the kill a watt meter in your wall socket and turn on your AC. Then start using the AC and you can see in real time how many kWh units of electricity your air conditioner is using.
For appliances which have compressor like AC, refrigerator it is advisable to take the reading for days to get exact power consumption. So keep the AC plugged to the Kill A Watt meter for the whole week and note the final value at the end of the week this way you will get the most accurate value of your AC power consumption.
Check out this amazingly useful video from Tech Guy Charlie where he calculates power consumption of a 1. You can read this detailed article on How to save electricity bill because of AC.
Planning to buy a new AC, check out the following list of most energy efficient AC available in Save my name, email, and website in this browser for the next time I comment.
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