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.

Learn More Buy It Now

Upgrade your building's HVAC effortlessly.

Experience Gradient, the hassle-free window heat pump that eliminates the need for professional installers and electricians.

Learn More Buy It Now

Gradient For Business

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.

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We’ve engineered something —how shall we say it —cooler.

SEE OUR TECH

The reviews are in.

See what people and the press have to say about Gradient.

Better climate for you means better climate for all.

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In The News

  • “Gradient designed its device to work like a more expensive heat pump”

  • “A window heat pump project is bringing cutting-edge climate tech to New York public housing”

  • “Electrifying apartment buildings is tough. A new heat pump design could make it easier.”

  • “This little heat pump could be the answer to a lot of prayers.”

  • “Gradient has designed a heat pump that easily slides over a windowsill — it doesn’t block light — and currently uses a refrigerant called R32”

  • “Unlike more traditional heat pumps, these new window units can essentially just sit in your window sill.”

  • “Gradient is betting on heat pumps’ potential to decarbonise domestic cooling with high efficiency but low cost.”