Welcome to the great indoors.
Meet Gradient, the hybrid cooling and heating system that unlocks new dimensions of comfort.
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.
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.”
