Question

Operating an Air conditioner at ${25}^{\circ }C$ consumes more energy than operating the air conditioner at ${23}^{\circ }C$. Is this statement true?

• A. Yes
• B. No
• C. Cant Determine
• D. No change in energy

Answer 1

Answer: (B)

No

Most air conditioning systems are constant speed. So, when they are on, they generally consume the same amount of power, regardless of the temperature setting. Setting your thermostat to a higher temperature will generally result in the unit being on less, and consuming less energy over the course of a day. However, you can imagine a scenario where it wouldn't make a difference. If it was 40 degrees out and you had a poorly insulated home and undersized AC, you might never cool the house down to 25, so the AC would be on continuously and consume the same amount of energy whether it was set to 25 or 22.