Introducing All-Weather 120V
Lower Operating Costs 30%+ More Efficient Cold Climate Suitability Drip-Free Meltwater Atomizer
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Upgrade your building's HVAC effortlessly.
Experience Gradient, the hassle-free window heat pump that eliminates the need for professional installers and electricians.
Gradient For Business
Gradient is ENERGY STAR rated, easy to install, and utilizes planet-friendlier heat pump technology.
Partner with us to fast-track carbon emissions reduction by electrifying buildings like multi-family homes, hotels, schools, and more.
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Do it yourself.
Until now, advanced heat pump technology has required professional installation with hefty price tags. Gradient brings it to you in a beautiful, easy-to-install package.
Get your view back.
Gradient fits snugly below your windowsill instead of smack inside it, so you can keep the view and the natural light.
Get your view back.
Gradient fits snugly below your windowsill instead of smack inside it, so you can keep the view and the natural light.
Stay in your comfort zone.
Enjoy air that’s not too dry, not too sticky and always just right. Now you can stay cool in the summer, warm in the winter and well rested year-round.
We’ve engineered something —how shall we say it —cooler.
SEE OUR TECHThe reviews are in.
See what people and the press have to say about Gradient.
“Easy installation, much smaller profile than previous heat pump unit, and very quiet.”
“So far the air conditioning is super cool and the unit is super quiet compared to our old window air conditioner. The old one will be coming out now that the new Gradient is installed! Thanks for a great product!”
“It’s so easy to use, it doesn't take up window space, it looks nice, and the heat is not uncomfortable to your body if you are sitting close to the unit.”
“I extremely liked the mobile app and the overall interface and its quick reaction time.”
“Form and function are no longer at odds.”
“Genuine ease with zero intimidation. My partner and I were able to get it in our window within 15 minutes and powered on shortly after. How cool is that!”
“It runs quiet and it cooled the room right down on a hot night in Oaktown! So far so good. :)”
“It heats and cools! Only got hot enough one day for A/C but wow, great.”
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% when the Gradient is used to both heat and cool, depending on your source of electricity. That’s like choosing to walk instead of drive up to 15 miles, every day – just by switching to Gradient.i* Assumes that an entire household in a moderate climate powered with 2 tons of HVAC capacity (24,000 BTU/hr) replaces their heating and cooling system with Gradient powered by decarbonized electricity; that household uses 2.65 kgCO2eq/day without Gradient and 0.14 kgCO2eq/day with Gradient. This absolute reduction of 2.51 kgCO2eq/day per household represents a 94.7% reduction in greenhouse gas emissions. Vehicle is a Toyota Prius that creates 104 g/km of carbon CO2 pollution per MacKay.
In The News
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“Gradient designed its device to work like a more expensive heat pump”
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“A window heat pump project is bringing cutting-edge climate tech to New York public housing”
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“Electrifying apartment buildings is tough. A new heat pump design could make it easier.”
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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.”
