Grist: "American homes need heat pumps, not space heaters"
by Matt Simon
The U.S., though, can’t simply replace all of its furnaces and space heaters with heat pumps and call it a day, energy experts said. It must happen alongside a push to make homes more efficient, like by installing proper insulation and double-pane windows. That is, a home needs to retain more heat in the winter and cool air in the summer, so a heat pump would need to run less. “Step one, don’t burn fossil fuels in your home, basically,” said Gernot Wagner, a climate economist at Columbia Business School, who wasn’t involved in the new report. “Step two: insulate, insulate, insulate. And both of those go hand-in-hand.”
The grid, too, needs upgrades if heat pumps are to reach their full potential. For one, ideally you’re powering them with electricity coming entirely from renewables like wind and solar, otherwise you’re still burning fossil fuels to warm homes. (Though to be clear, because heat pumps are so efficient, this is still better than sticking with gas furnaces.) And two, heat pumps join electric vehicles and induction stoves in increasing demand on the grid.
Quoted in: "American homes need heat pumps, not space heaters" by Matt Simon, Grist (5 May 2026).
