Nothing beats walking into a cozy, warm home on a frigid winter day, or a cool, comfortable one when outdoor temps are through the roof. Sometimes, it even feels magical. After all, all you are ...

Feeling sneezy, stuffy or fatigued? It could be your HVAC system. Here’s how to test it.

Your new HVAC system is one of the most expensive pieces of equipment in your home, and the paperwork that comes with it is what keeps that investment from turning into a headache the first time ...

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 ...

Skipping the manufacturer's instructions during installation may result in a furnace that fails within six months or less. For example, heat exchangers can crack from improper venting, and gas valves ...

Add Yahoo as a preferred source to see more of our stories on Google. An HVAC unit inside a house - Arina P Habich/Shutterstock Imagine: It's the middle of summer and your air conditioner is working ...