Staying comfortable in our home is something that many of us take for granted. Unfortunately, for some individuals, old or failing heating and cooling systems can make it nearly impossible to keep a ...

Rising energy costs make efficient heating and cooling essential. This guide ranks leading HVAC options —Daikin (Best Overall), Trane (Most Reliable & Best-Tested), Carrier (Best Industry Leader), ...

Venting rules change with efficiency — and mixing them up can lead to moisture buildup, heat exchanger damage, and dangerous combustion issues.

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...