Full-Time
Posted on 9/25/2025
Energy-efficient window ACs with heat pump
$148k - $155k/yr
Boston, MA, USA
In Person
Must be onsite with clients in the Northeastern United States; relocation package available for out-of-state applicants.
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Gradient Comfort makes energy-efficient window air conditioners that also function as heat pumps. Its flagship unit cools and heats spaces without blocking the view, ideal for urban living. The company sells directly to consumers via gradientcomfort.com and uses R-32 refrigerant to improve efficiency and lower environmental impact. It has received a $17.5 million Defense Production Act grant from the U.S. Department of Energy to support clean energy manufacturing.
Company Size
51-200
Company Stage
Series A
Total Funding
$39.5M
Headquarters
San Francisco, California
Founded
2017
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Equity
Medical/vision/dental/life/disability insurance
401k
Paid parental leave
Commuter benefits
Unlimited PTO within reason
Relocation package ( out of state applicants only )
Gradient, a heat pump startup, has launched Nexus, software that links its window-mounted heat pumps across multifamily buildings. The system allows building managers to set temperature limits while maintaining resident comfort, with one building seeing a 25% drop in energy consumption after implementing controls. The company targets old buildings with aging boilers, particularly in New York City, where its heat pumps provide both heating and cooling without requiring electrical upgrades. Installation takes hours rather than days, as units fit in windows like air conditioners but don't block views. Gradient has deployed its technology in New York City Housing Authority buildings and affordable housing developments. The Nexus system can also reduce power draw during grid stress whilst maintaining comfort, using building data and sensors to identify which units can temporarily decrease consumption.
Gradient wins Electric Innovation award alongside former U.S. Secretary of Energy Jennifer Granholm. Recognizing breakthrough design in electrification. Gradient has been named a winner in the inaugural Electric Innovation Awards, receiving top honors in the Design + Discovery category during Climate Week NYC 2025. Hosted by the Electric Innovation Initiative, the awards celebrate the people and projects making electrification real - everywhere it counts. This recognition highlights its commitment to designing climate-friendly heating and cooling solutions that combine comfort, cost savings, and climate impact. Honored by leaders in clean energy. The award was presented by Doreen Harris, President and CEO of the New York State Energy Research and Development Authority (NYSERDA). Former U.S. Secretary of Energy Jennifer Granholm was also honored for her leadership in advancing electrification. Gradient was nominated by David Hochschild, Chair of the California Energy Commission, whose continued support of innovation in clean energy has helped advance electrification nationwide. A win for design and Discovery. Gradient's All-Weather 120V window heat pump embodies what electrification can achieve - delivering high performance and year-round comfort without the cost or disruption of traditional HVAC systems. This recognition affirms that innovative design can accelerate adoption of clean, efficient, and accessible heating and cooling solutions for every building type. gradientcomfort.com is grateful to the Electric Innovation Initiative for this honor.
Meanwhile, Gradient, a startup that makes window-mounted heat pumps, is in line for $17.5 million to establish a plant in Michigan that will employ about 300 and have a capacity of 100,000 units a year.
Gradient, a company built by thermal scientists to rethink HVAC and build products that are good for the planet and great at cooling and heating homes, announced the All-Weather 120 V Window Heat Pump.
Gradient has partnered with the New York City Housing Authority as the first customer for its new, all-weather unit - a take on a heat pump that more closely resembles a window AC unit.