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Gradient In Action

The following documents describe how Gradient’s window heat pumps have been deployed in places such as New York City, California’s Central Valley, and the Pacific Northwest, including real-world performance, installation, and user feedback.

Clean Heat for All Preliminary Pilot Results (2024)

Preliminary results of the performance and tenant reception of Gradient’s All Weather product in New York City during the winter of ‘23-’24.

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Micro HP Field Study Data Analysis (2023)

A look at DIY install and usage patterns in the Pacific Northwest.

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Field Deployment of Window Heat Pumps in Multi-Family and Single-Family Low-to-Medium Income Homes (2024)

This is a case study on initial deployments of Gradient’s first-generation product in the CA Central Valley.

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Predictive Studies

These studies evaluate the potential of Gradient products using modeling, technical reviews, or other predictive measures.

We’ll continue updating this page as newer studies get published.
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Market and Technical Evaluation of Multifamily In-Unit Heat Pumps (2023)

An analysis of market potential and predicted savings in California.

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Super-Efficient Room Conditioners as a Multifamily Market Mover (2024)

An overview of synergistic initiatives at NYCHA/NYPA, CEE, and Efficiency Vermont.

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Micro Heat Pumps: Are they Ready for Prime Time? (2024)

A summary of recent industry progress.

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Room Heat Pumps Fact Sheet (2024)

A California-focused product overview and market transformation strategy.

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