Assuming a typical AC unit with a wattage of 1,500, the calculation would be (1,500W x $0.15) / 1,000 = $0.23 per hour. The cost to run the same AC unit may vary depending on energy prices where ...

Covering AC unit not effective Placing a shade over an AC condenser can limit airflow and does not improve energy efficiency, according to experts. It can actually have the opposite effect.

Air conditioners need to be maintained like all other HVAC systems in your home. Learn more about how much an AC tune-up costs, including by size and unit.

If a window AC unit isn't a good option for you, a portable air conditioner is the answer to cooling you down during these hot summer months. We lab-tested these units to find you the best for ...