Sign up for Wirecutter’s newsletters to get independent reviews, expert advice, and the very best deals sent straight to your inbox.Heat pumps are good for the world—and, in many cases, for your wallet, too.They’re the most energy-efficient way to handle both heating and cooling in your home; they also tend to be the most affordable choice in the long term, once you factor in tax credits and incentives as well as decreased utility bills. And they’re usually better for the environment and generally considered to be one of the best ways for homeowners to reduce their carbon footprint without sacrificing comfort. In other words, they’re a win-win.