Three years ago, the mercury dipped well below zero, significantly colder than this week. The Globe reached out to heat pump owners to see how their systems fared in the bitter cold in February 2023.

As cold temperatures affect much of the United States, more people are looking into highly efficient heat pumps to save money on utility bills and reduce household energy waste. According to the ...

Compact heat pumps that slot into windows could be a planet-friendly way to efficiently heat and cool apartment buildings without breaking the bank, experts say. While many single-family residences ...