Sorry, the web browser you're using is not supported by this website.

Please use Google Chrome, Firefox, Safari, or another browser to access homex.com. Thank you.

Skip to main content

We use cookies to enhance your experience. For details on how we use cookies, collect data, & how to manage your consent please see our Cookie Policy & Privacy Policy.

Can you install a Nest thermostat with two wires?

A welcome to the community forum. It looks like you have a 2- wire heating system, based on the photo you shared. Since the green wire isn't connected to your old thermostat, you don't have to connect it anymore. You should install the wires on your thermostat.

Let's Get It Fixed!

HomeX virtual experts will assess your issue (for free!) and can resolve simple problems.

What Did You Think of This Article?

What Did You Think of This Article?

Shop Recommended ProductsShop HomeX Recommended Products