Add Yahoo as a preferred source to see more of our stories on Google. The lower half of the United States is sweltering under a heat dome, with nearly 85 million Americans from South Dakota to Texas ...

PHILADELPHIA (WPVI) -- If the triple-digit temperatures are a shock to your system, wait until you get your electric bill with your AC pumping around the clock. The US Department of Energy says to ...

Conserve energy and cut costs with one of these editor-approved models.

As the days start to feel warmer in New York state, we're approaching the time to turn on air conditioning - be it central air or window units. With above normal high temperatures predicted to land in ...

It feels like an age-old debate: What’s the “right” temperature to set your thermostat at to save money but still feel comfortable? In the summer — and especially during days like the extreme heat ...

Florida's heat means your AC works hard. Learn the best thermostat settings and tips to save money and stay cool.

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Roy Furchgott After a new ...

Save $27.98 on the Honeywell Wi-Fi Smart Color Thermostat with a customizable touchscreen for modern, energy-efficient home climate control.

Electric HVAC systems can help you keep your home comfortable using a fraction of the energy. We spoke to experts to find out just how efficient they are. Mike De Socio is a CNET contributor who ...

Save $28.46 on the Honeywell Wi-Fi Smart Color Thermostat with a customizable touchscreen for modern home energy management.