As temperatures outside drop, and you turn on the heat for the winter you might be braced for impact when that first energy ...

Google says the new Nest feature allows your thermostat to keep an eye out for warning signs that your HVAC systems are on the fritz, such as if it’s taking longer than usual to heat up your home.

Is your HVAC system keeping your home comfortable? If you've noticed fluctuating temperatures, changes in your energy bills, or new and unexpected noises, you might side-eye it, questioning whether it ...

Pay attention to furnace smells. A metallic or burning odor could mean overheated electrical components. A musty smell ...

Our Good Housekeeping Institute experts tested out the best smart thermostats to buy in 2025, so you don’t have to. Shop our ...

Smart thermostats manage your household temperatures by learning your preferences and using them to create automatic heating and cooling schedules. These “set it and forget it” devices save money by ...

Managing Editor Alison DeNisco Rayome joined CNET in 2019, and is a member of the Home team. She is a co-lead of the CNET Tips and We Do the Math series, and manages the Home Tips series, testing out ...