The Environment

  • Is the Windmill AC more eco-friendly?

    We built Windmill with the environment in mind. Here is what we are doing to lessen our impact: Responsible refrigerant: We decided to use a refrigerant (R32) with 68% less global warming potential than what’s commonly used (410a). App-enabled: With our app, for iPhone and Android, you can shut ...
  • How can I use my AC more efficiently and save on my energy bill?

    There are several things you can do to ensure you're using your AC most efficiently: Clean your filter: A clean filter allows more air to flow through the AC, making it more energy efficient. Maximize air flow: For ACs, free flowing air is like food. For them to “eat” and operate as efficiently ...
  • How does the carbon offset program work?

    We've partnered with EcoCart, an organization that uses carbon offsets to combat climate change. EcoCart supports projects around the world that reduce or eliminate carbon emissions, like protecting forests or helping communities use less fuel. Their work also directly involves vulnerable communi...
  • What is R32?

    R32 is a refrigerant with 68% less global warming potential than what’s commonly used (410a). It is a responsible choice for any AC manufacturer, and luckily for the planet, R32 is being used in more and more ACs on the market.
  • What if I need to reset my utility login to sign up for Eco Rewards?

    To sign up for Eco Rewards in New York or California, you’ll need to provide the username and password for your utility online account. This is not the same as the credentials for the Windmill app. If you don’t know the password to log into your utility account, click one of the following links ...
  • What is Windmill’s Eco Rewards Program?

    Earn cash while helping the planet and supporting energy conservation! Windmill’s Eco Rewards Program is an environmentally conscious, first-of-its-kind program for window ACs. When it’s hot out, the program reduces stress on your local electrical grid, which helps lower pollution, decrease ener...