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Gradient has created a window heat pump that can be installed by homeowners in 30 minutes. Unlike with mini-split heat pumps, there's no need to hire an electrician or professional HVAC technician to install their window heat pump unit. In addition, switching to Gradient doesn't require drilling or permitting, which means you don't have to worry about disturbing mold, asbestos, or lead in older buildings. Gradient's window heat pump was named one of TIME's best inventions of 2022, a Fast Company 2022 World Changing Idea, and a winner of the House Beautiful Live Better Awards 2022.

The Gradient window heat pump is available for purchase at