Heat pumps function similarly to refrigerators or air conditioners, which take warm air from one space and send it to another. In the winter, a heat pump transfers heat from the outdoors inside and, ...

What's the difference between warm air and cool air? In fact, what does “temperature” even mean? It's stranger than you think. At a basic level, if you increase the temperature of air, you increase ...

The highly efficient devices are the darlings of the environmental movement. Here’s why. By Hilary Howard Heat pumps, which both warm and cool buildings and are powered by electricity, have been ...

Heat pumps could help address climate change and save you money. Here’s how they work. MIT Technology Review Explains: Let our writers untangle the complex, messy world of technology to help you ...

The current standards for water heaters, which are specified in the Code of Federal Regulations (CFR) in 10 CFR 430.32(d), have been in effect since 2010. One aspect of the upcoming changes is the ...