Mercury is a hazardous substance. Many states have laws requiring the proper disposal of mercury thermostats.
If your new thermostat is replacing an older thermostat that might contain mercury, please visit www.thermostat-recycle.org to learn how and where to dispose of your old thermostat. On the website you can enter your ZIP code to locate the nearest local drop-off point to recycle your old thermostat.
If you are not sure whether your old thermostat contains mercury, the website also provides information and guidelines to help you determine whether it does. If you are unable to access the website, you may call the Thermostat Recycling Corporation at 1-888-266-0550 for guidance regarding the proper handling and disposal of your old mercury thermostat.