Troubleshooting an air conditioning system often concerns refrigerant, airflow, and mechanical problems, either individually or in combination. The next series of articles will deal with many of these ...

As colder weather moves in, it's important to make sure your HVAC system is ready, from checking heat strips to scheduling a ...

R-410A has been the refrigerant of choice in residential and light commercial cooling systems since 2010, when federal government regulations mandated that new air conditioners and heat pumps could no ...

When certain rooms in a home are consistently warmer or cooler than others, there may be an obvious cause, like an uninsulated exterior wall or drafty windows. But that's not always the case. If ...

Pay attention to furnace smells. A metallic or burning odor could mean overheated electrical components. A musty smell suggests moisture or mold in the ducts. And if you ever detect a sulfur or rotten ...

Every homeowner at some point in time has asked this question: Is this just a tough time for my AC, or has it quietly given up on me? The signs can be frightening, no question-but not every scenario ...

If you've noticed that your utility bills have skyrocketed, or it's taking much longer to heat your home than usual, your heating system may be working harder than it needs to. From dirty filters to ...

Regular maintenance is more important than you think. Use it to your advantage and save on HVAC costs in the long run. Alexandra Jones is a CNET contributor who writes about food, farming, gardening, ...