Engineered for rapid installation. Contact Us →

Engineered for rapid installation. Contact Us →

Gradient window heat pump in a bright living room

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.

Gradient heat pump in a window seat nook

See it in action

Gradient window heat pump in a bright living room

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.

Gradient heat pump in a window seat nook

See it in action

  • Indian Village Manor logo
  • VEIC logo
  • Washington State University logo
  • EPRI Electric Power Research Institute logo
  • Indian Village Manor logo
  • VEIC logo
  • Washington State University logo
  • EPRI Electric Power Research Institute logo
  • Indian Village Manor logo
  • VEIC logo
  • Washington State University logo
  • EPRI Electric Power Research Institute logo
  • Indian Village Manor logo
  • VEIC logo
  • Washington State University logo
  • EPRI Electric Power Research Institute logo

News and Blog

Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment

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.

2025 Design & Discovery Award: Gradient Window Heat Pumps

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.

Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm

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.

Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025

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.

Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation

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.

Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing

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

Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed

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

Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment

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.

2025 Design & Discovery Award: Gradient Window Heat Pumps

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.

Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm

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.

Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025

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.

Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation

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.

Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing

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

Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed

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

Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment

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.

2025 Design & Discovery Award: Gradient Window Heat Pumps

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.

Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm

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.

Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025

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.

Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation

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.

Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing

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

Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed

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

Gradient Unlocks 450,000 kWh in Energy Savings at Carrol Tower Deployment

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.

Gradient Featured in Fast Company: Transforming Building Decarbonization at Record Speed

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

WBUR Features Gradient’s Window Heat Pumps in Boston Public Housing Pilot

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

Gradient Launches Nexus, Intelligent Energy Control Software for Multifamily Housing

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

Gradient Highlighted in The New York Times for NYCHA Window Heat Pump Installation

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.

Gradient Featured in Forbes: One of the 5 Innovative Technologies of 2025

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.

Gradient Wins Electric Innovation Award Alongside Former U.S. Secretary of Energy Jennifer Granholm

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.

2025 Design & Discovery Award: Gradient Window Heat Pumps

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.

Top view of the Gradient heat pump control dial

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.

Top view of the Gradient heat pump control dial

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.

Top view of the Gradient heat pump control dial

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.

Top view of the Gradient heat pump control dial

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

Contact Sales

Events
Events
Events
Events
Privacy Policy
Privacy Policy
Privacy Policy
Privacy Policy
About Gradient
About Gradient
About Gradient
About Gradient
News & Blog
News & Blog
News & Blog
News & Blog
Career
Career
Career
Career
Window Heat Pump
Window Heat Pump
Window Heat Pump
Window Heat Pump
Gradient Nexus Software
Gradient Nexus Software
Gradient Nexus Software
Gradient Nexus Software
Services
Services
Services
Services
Shop
Multifamily Housing
Multifamily Housing
Multifamily Housing
Multifamily Housing
Education (K-12, Higher-Ed)
Education (K-12, Higher-Ed)
Education (K-12, Higher-Ed)
Education (K-12, Higher-Ed)
Senior Living Facilities
Senior Living Facilities
Senior Living Facilities
Senior Living Facilities
Manufactured Homes
Manufactured Homes
Manufactured Homes
Manufactured Homes
Hotels & Motels
Hotels & Motels
Hotels & Motels
Hotels & Motels
Retails & Hospitalities
Retails & Hospitalities
Retails & Hospitalities
Retails & Hospitalities
Offices
Offices
Offices
Offices