Take control over your heating and cooling—for free

Enroll in a pilot program to test an exciting new technology for renters.

Help us bring window heat pumps to Vermont

Window heat pumps are a brand new technology that allows renters to have all the efficient heating and cooling benefits of a heat pump, with the ease of installing an air conditioner. Since this product is completely new to the industry, we are running a pilot program to start bringing them to Vermont. To do this, we are offering this product completely for free to qualifying renters. 

Pilot participants will be the first Vermonters and among the first customers in the country to use this brand new technology. In the process, you'll provide Efficiency Vermont with important feedback that will help us develop future programs that bring this product to even more homes. Plus, at the end of the pilot you will own and be able to continue to use the window heat pump!

Interested in participating? Please read the following instructions:

Please note that filling out the Program Interest Form at the bottom of this page does not automatically enroll you in the program. The Program Interest Form is used to analyze applicant information to ensure eligible customers are selected to participate in the program. We will contact you within a few weeks to let you know if you've been selected to participate. 

  1. Read the information on this page to learn about the pilot program and the window heat pump product.
  2. Carefully review the pilot program eligibility criteria to ensure that you and your rental unit meet the requirements.
  3. If you are interested in participating, complete the interest form below.
  4. Efficiency Vermont will review applications and be in touch with customers who have been selected to participate.

Fill out the Program Interest Form

What is a window heat pump?

Window heat pumps are as efficient as standard heat pumps, but they fit in your window and can be taken with you when you move. They save money on heating and cooling and boost the comfort of your space.

  • Quiet operation
  • Won’t block your view
  • Wifi/Bluetooth enabled
  • No need to hire a contractor or secure permits to install

We are offering two different window heat pump models. The model you receive will depend on when you are enrolled in the pilot program. The first group of participants will receive the Midea model. The second group of participants will receive the Gradient model. Please read on for details about both models. 

Pilot Group 1: Midea Model Window Heat Pump

The first round of pilot participants will receive Midea brand window heat pump. Keep reading for the installation requirements to make sure the Midea window heat pump is a good fit for your space.

  • The window unit weighs 125lbs and should be installed by two (2) people who are able to lift and move heavy objects.
  • The window opening must be at least 26" wide and 15" high. There must be at least 28" of clearance under the windowsill on the exterior wall, and at least 24" of clearance under the windowsill on the interior wall.
  • A grounded, three-prong outlet on a dedicated circuit must be present near the window you are installing the heat pump. The space in front of the window and from the floor to the window sill must be clear of obstructions. Please reference this illustration showing the necessary window dimensions.
  • Learn more about their product by reviewing Midea's Technical Product Sheet

Pilot Group 2: Gradient Model Window Heat Pump

The second round of pilot participants will receive Gradient brand window heat pump. Keep reading for the installation requirements to make sure the Gradient window heat pump is a good fit for your space.

  • The window unit weighs 140lbs and should be installed by two (2) people who are able to lift and move heavy objects.
  • The window opening must be at least 26" wide. There must be at least 21" of clearance under the windowsill on the interior wall.
  • A grounded, three-prong outlet on a dedicated circuit must be present near the window you are installing the heat pump. The space in front of the window and from the floor to the window sill must be clear of obstructions. Please reference this illustration showing the necessary window dimensions.
  • Learn more about their product by reviewing Gradient's Technical Product Sheet

What to expect from this pilot program

  • Get a window unit heat pump shipped to your home, 100% free of charge (Valued at approximately $3,000)
  • You install and own the unit and you can take it with you if you move in the future
  • The heat pump must be installed in a living space (not a bedroom)
  • The heat pump should be used to heat and cool this space

Your responsibilities as a pilot participant

Pilot participants must review and sign a participation agreement to commit to the requirements of the pilot program. Your experience with the window heat pump is critical for helping us develop future rebate programs. To participate in this program, we ask that you help us gather data by:

  • Participating in a survey or interview before getting the product and at the end of the pilot in Summer 2025.
  • Installing a power-metering device that Efficiency Vermont will send to you.

Fill out the Program Interest Form to let us know you would like to be considered to enroll in this pilot program.

Completing this form does not enroll or commit you to the program. Efficiency Vermont program staff will review all form submissions to determine applicant eligibility. After you submit this form, a member of our team will be in touch within a few weeks to confirm if you've been selected to participate and discuss next steps for participating in the pilot. Priority enrollment is granted to BIPOC applicants, applicants whose household income is at or below the area median income limit, and applicants who live in multi-family buildings.

Window Installation Requirements

This product can only be installed on single- or double-hung windows. The window unit heat pump cannot be installed in casement, sliding (left to right), and awning windows. The window opening must be at least 26" wide and 15" high. There must be at least 28" of clearance under the windowsill on the exterior wall, and at least 24" of clearance under the windowsill on the interior wall. A grounded, three-prong outlet on a dedicated circuit must be present near the window you are installing the heat pump. The space in front of the window and from the floor to the window sill must be clear of obstructions. Please reference this illustration showing the necessary window dimensions described above.

Priority Enrollment

BIPOC applicants, applicants whose monthly rent qualifies at or below the affordable rent limit at 80% area median income by county, or applicants who live in multi-family buildings are eligible for priority enrollment. To determine if your monthly rent falls within the priority enrollment criteria, please use this table and refer to the "80%" row for the county you live in. 

Information in this form will only be accessed by the Efficiency Vermont staff responsible for managing this program, who abide by strict confidentiality guidelines. We will maintain this information in accordance with our privacy standards, including your right to edit or delete this information upon your request. Our purposes in collecting this information are: 

  • To ensure we communicate with our applicants respectfully
  • To increase access to EVT's programs and services, especially amongst communities we have not always been able to serve
  • To supplement our ongoing efforts to make our sector more equitable and ensure that everyone can benefit from energy efficiency programs

Please check the boxes below to indicate if you are eligible for priority enrollment based on these criteria. Please check all boxes that apply.