Gradient

Across the U.S., many buildings still rely on outdated systems like steam radiators and gas furnaces. These are expensive to run and bad for the climate. While heat pumps are cleaner and more efficient, they’ve traditionally been too costly or invasive to install, especially in older or historic buildings.

Gradient’s mission is to reduce emissions and make clean, efficient heating and cooling accessible to everyone.

By designing a powerful window heat pump, Gradient enables retrofits in buildings that can’t support traditional systems, helping cities decarbonize while cutting energy use and reducing installation costs.