Engineered for rapid installation. Contact Us →
Engineered for rapid installation. Contact Us →

The Lowest-Cost Path to Building Electrification
Electrify without the disruption. The Gradient All-Weather 120V Window Heat Pump delivers efficient heating and cooling using existing infrastructure and a standard 120V outlet—eliminating costly electrical upgrades while reducing installation costs and tenant disruption.

See it in action

The Lowest-Cost Path to Building Electrification
Electrify without the disruption. The Gradient All-Weather 120V Window Heat Pump delivers efficient heating and cooling using existing infrastructure and a standard 120V outlet—eliminating costly electrical upgrades while reducing installation costs and tenant disruption.

See it in action
News and Blog

News
Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment
Building-wide installation at Carroll Tower marks milestone for Clean Heat Rhode Island program and proves a replicable model for multifamily electrification.

News
2025 Design & Discovery Award: Gradient Window Heat Pumps
Gradient window heat pumps are a modern and energy efficient solution to window and whole home air conditioning, that cools, heats, and never blocks your view. The latest innovative HVAC solution that services four seasons with just one system.

News
Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm
Gradient was named a winner of the inaugural Electric Innovation Awards at Climate Week NYC 2025, recognized in the Design + Discovery category for breakthrough work in electrified heating and cooling solutions.

News
Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025
Gradient was recently featured in Forbes as part of the article “5 Innovative Technologies Of 2025 That Can Deliver Real-World Impact,” written by energy consultant and Certified Energy Manager Dianne Plummer.

News
Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation
Gradient was featured in The New York Times for its plug-in window heat pumps used by NYCHA to electrify public housing without costly upgrades.

News
Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing
Hardware-native platform turns distributed heat pumps into a coordinated, software-defined system; beta customer achieves 25% energy reduction SAN FRANCISCO –February 3, 2026– Gradient, a leading manufacturer of smart heating and cooling solutions designed for a decarbonized future, today announced the launch of Gradie

News
Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed
We’re excited to share that Gradient has been featured in Fast Company for a groundbreaking retrofit project in Providence, Rhode Island. In the article, Fast Company highlights how a senior apartment building installed 277 heat pumps in just 12 days—demonstrating a new model for fast, scalable building electrification
News and Blog

News
Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment
Building-wide installation at Carroll Tower marks milestone for Clean Heat Rhode Island program and proves a replicable model for multifamily electrification.

News
2025 Design & Discovery Award: Gradient Window Heat Pumps
Gradient window heat pumps are a modern and energy efficient solution to window and whole home air conditioning, that cools, heats, and never blocks your view. The latest innovative HVAC solution that services four seasons with just one system.

News
Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm
Gradient was named a winner of the inaugural Electric Innovation Awards at Climate Week NYC 2025, recognized in the Design + Discovery category for breakthrough work in electrified heating and cooling solutions.

News
Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025
Gradient was recently featured in Forbes as part of the article “5 Innovative Technologies Of 2025 That Can Deliver Real-World Impact,” written by energy consultant and Certified Energy Manager Dianne Plummer.

News
Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation
Gradient was featured in The New York Times for its plug-in window heat pumps used by NYCHA to electrify public housing without costly upgrades.

News
Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing
Hardware-native platform turns distributed heat pumps into a coordinated, software-defined system; beta customer achieves 25% energy reduction SAN FRANCISCO –February 3, 2026– Gradient, a leading manufacturer of smart heating and cooling solutions designed for a decarbonized future, today announced the launch of Gradie

News
Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed
We’re excited to share that Gradient has been featured in Fast Company for a groundbreaking retrofit project in Providence, Rhode Island. In the article, Fast Company highlights how a senior apartment building installed 277 heat pumps in just 12 days—demonstrating a new model for fast, scalable building electrification
News and Blog

News
Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment
Building-wide installation at Carroll Tower marks milestone for Clean Heat Rhode Island program and proves a replicable model for multifamily electrification.

News
2025 Design & Discovery Award: Gradient Window Heat Pumps
Gradient window heat pumps are a modern and energy efficient solution to window and whole home air conditioning, that cools, heats, and never blocks your view. The latest innovative HVAC solution that services four seasons with just one system.

News
Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm
Gradient was named a winner of the inaugural Electric Innovation Awards at Climate Week NYC 2025, recognized in the Design + Discovery category for breakthrough work in electrified heating and cooling solutions.

News
Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025
Gradient was recently featured in Forbes as part of the article “5 Innovative Technologies Of 2025 That Can Deliver Real-World Impact,” written by energy consultant and Certified Energy Manager Dianne Plummer.

News
Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation
Gradient was featured in The New York Times for its plug-in window heat pumps used by NYCHA to electrify public housing without costly upgrades.

News
Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing
Hardware-native platform turns distributed heat pumps into a coordinated, software-defined system; beta customer achieves 25% energy reduction SAN FRANCISCO –February 3, 2026– Gradient, a leading manufacturer of smart heating and cooling solutions designed for a decarbonized future, today announced the launch of Gradie

News
Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed
We’re excited to share that Gradient has been featured in Fast Company for a groundbreaking retrofit project in Providence, Rhode Island. In the article, Fast Company highlights how a senior apartment building installed 277 heat pumps in just 12 days—demonstrating a new model for fast, scalable building electrification
News and Blog

News
Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment
Building-wide installation at Carroll Tower marks milestone for Clean Heat Rhode Island program and proves a replicable model for multifamily electrification.

News
Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed
We’re excited to share that Gradient has been featured in Fast Company for a groundbreaking retrofit project in Providence, Rhode Island. In the article, Fast Company highlights how a senior apartment building installed 277 heat pumps in just 12 days—demonstrating a new model for fast, scalable building electrification

News
WBUR Features Gradient’s Window Heat Pumps in Boston Public Housing Pilot
Listen to the full story ! Gradient is proud to be featured in WBUR coverage highlighting a pioneering pilot project with the Boston Housing Authority (BHA), which is installing our window-mounted heat pumps in public housing. At one of Boston’s oldest public housing communities — the 100-unit Hassan Apartments in Matt

News
Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing
Hardware-native platform turns distributed heat pumps into a coordinated, software-defined system; beta customer achieves 25% energy reduction SAN FRANCISCO –February 3, 2026– Gradient, a leading manufacturer of smart heating and cooling solutions designed for a decarbonized future, today announced the launch of Gradie

News
Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation
Gradient was featured in The New York Times for its plug-in window heat pumps used by NYCHA to electrify public housing without costly upgrades.

News
Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025
Gradient was recently featured in Forbes as part of the article “5 Innovative Technologies Of 2025 That Can Deliver Real-World Impact,” written by energy consultant and Certified Energy Manager Dianne Plummer.

News
Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm
Gradient was named a winner of the inaugural Electric Innovation Awards at Climate Week NYC 2025, recognized in the Design + Discovery category for breakthrough work in electrified heating and cooling solutions.

News
2025 Design & Discovery Award: Gradient Window Heat Pumps
Gradient window heat pumps are a modern and energy efficient solution to window and whole home air conditioning, that cools, heats, and never blocks your view. The latest innovative HVAC solution that services four seasons with just one system.
How We Support Your Project
How We Support Your Project
How We Support Your Project
How We Support Your Project

Designed to Streamline Retrofits
No refrigerant handling
No major building modifications
Plug-in 120V installation
Cold-climate heating capability
Gradient combines the installation simplicity of a window AC with the performance of a cold-climate heat pump—reducing project costs, minimizing resident disruption, and accelerating deployment across existing multifamily housing.

Designed to Streamline Retrofits
No refrigerant handling
No major building modifications
Plug-in 120V installation
Cold-climate heating capability
Gradient combines the installation simplicity of a window AC with the performance of a cold-climate heat pump—reducing project costs, minimizing resident disruption, and accelerating deployment across existing multifamily housing.

Designed to Streamline Retrofits
No refrigerant handling
No major building modifications
Plug-in 120V installation
Cold-climate heating capability
Gradient combines the installation simplicity of a window AC with the performance of a cold-climate heat pump—reducing project costs, minimizing resident disruption, and accelerating deployment across existing multifamily housing.

Designed to Streamline Retrofits
No refrigerant handling
No major building modifications
Plug-in 120V installation
Cold-climate heating capability
Gradient combines the installation simplicity of a window AC with the performance of a cold-climate heat pump—reducing project costs, minimizing resident disruption, and accelerating deployment across existing multifamily housing.
Incentives & Rebates
Explore the incentives and rebate programs available in your area that can help make energy-efficient heating and cooling upgrades more affordable.
Incentives & Rebates
Explore the incentives and rebate programs available in your area that can help make energy-efficient heating and cooling upgrades more affordable.
Incentives & Rebates
Explore the incentives and rebate programs available in your area that can help make energy-efficient heating and cooling upgrades more affordable.
Incentives & Rebates
Explore the incentives and rebate programs available in your area that can help make energy-efficient heating and cooling upgrades more affordable.
Got Questions?
What is Gradient?
Do I need Wi‑Fi to use the All-Weather 120V heat pump unit?
How is this product any different than a mini-split?
What are the dimensions?
What windows is the All-Weather 120V heat pump compatible with?
How do I control the All-Weather 120V heat pump?
Got Questions?
What is Gradient?
Do I need Wi‑Fi to use the All-Weather 120V heat pump unit?
How is this product any different than a mini-split?
What are the dimensions?
What windows is the All-Weather 120V heat pump compatible with?
How do I control the All-Weather 120V heat pump?
Got Questions?
What is Gradient?
Do I need Wi‑Fi to use the All-Weather 120V heat pump unit?
How is this product any different than a mini-split?
What are the dimensions?
What windows is the All-Weather 120V heat pump compatible with?
How do I control the All-Weather 120V heat pump?
Got Questions?
What is Gradient?
Do I need Wi‑Fi to use the All-Weather 120V heat pump unit?
How is this product any different than a mini-split?
What are the dimensions?
What windows is the All-Weather 120V heat pump compatible with?
How do I control the All-Weather 120V heat pump?
Let's make it happen!
Let's make it happen!
Our team is here to help.
Our team is here to help.
Reach out and we’ll get back to you as soon as possible.
Reach out and we’ll get back to you as soon as possible.
Contact Sales
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