Four seasons, one system: the future of HVAC made simple
Say goodbye to complicated HVAC installs. Enjoy year-round comfort with Gradient’s plug-and-play window heat pump, installed in just 30 minutes
- AC & cold climate heat pump
- Operating temperatures from -13 °F to 115 °F
- Installable in 30 minutes with 2 people
- 6' cord for standard 120 V outlet
- No drilling or plumbing required
- No electrical upgrades
- Ability to open window
- Factory charged R-32 refrigerant
- 30%+ more efficient than mini splits
- Lower operating costs
Revolutionizing building electrification
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“Gradient designed its device to work like a more expensive heat pump”
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“Electrifying apartment buildings is tough. A new heat pump design could make it easier.”
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“A window heat pump project is bringing cutting-edge climate tech to New York public housing”
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“This little heat pump could be the answer to a lot of prayers.”
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“Gradient has designed a heat pump that easily slides over a windowsill — it doesn’t block light — and currently uses a refrigerant called R32”
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“Unlike more traditional heat pumps, these new window units can essentially just sit in your window sill.”
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“Gradient is betting on heat pumps’ potential to decarbonise domestic cooling with high efficiency but low cost.”
Customer insights
See what people have to say about Gradient.
Your decarbonization solution
Accelerate your journey to a greener future by electrifying with Gradient window heat pumps.
Seamless setup, superior performance
Gradient's advanced heat pump technology combines professional-grade performance with straightforward setup. Enjoy seamless integration without the typical hassles of installation.
Optimize space, enhance value
Gradient's sleek design preserves the natural light and view, enhancing both functionality and appeal.
Room-by-room, precision-engineered comfort
Our innovative design enables precise individual climate control for each room, ensuring tailored comfort and energy efficiency year-round.
More than a heating and cooling solution
As your trusted partner, we’re focused on providing smart HVAC solutions that simplify operations and optimize your property’s performance.
A better climate for you means better climate for all
Our mission is to push the industry toward zero carbon. That’s why we’ve eliminated harsh refrigerants and cut greenhouse gas emissions by up to 95%. Learn why Gradient window heat pumps propose the right solution for you and the climate.