A quick tune-up could save your summer—and your energy bill. Cleaning your outdoor air conditioner unit may seem like a job for professionals, but it’s a task you can perform yourself—with ...

If you don't have a central air conditioning system at home, investing in a portable AC unit can make a notable difference in your comfort level this summer. What you might not realize, however, is ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...

Despite how much we all use our air conditioners (especially in the South), their maintenance isn’t often top of mind. Considering the benefits, though, it should be. “Regular cleaning not only ...

Now that you won’t need your whole-house air conditioner much more this year (we hope), here’s something to think about during the long winter: Your outside unit might be growing a fur coat. I’m ...

David Yuill received funding from the American Society of Heating, Refrigerating, and Air-conditioning Engineers to conduct this study, under Research Project 1705. He is affiliated with ASHRAE. I ...