You can best test and diagnose a residential hydronic heating system using pressure ports and balancing valves. However, few residential systems have either of these accessories. A commonly ...

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 ...

If you've noticed that your utility bills have skyrocketed, or it's taking much longer to heat your home than usual, your ...

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

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 ...

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 ...

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, ...