Check for Mercury in Legacy ClimateMaster Thermostats

Are Your Older ClimateMaster Digital Thermostats Safe?

ClimateMaster digital thermostats from 12-13 years ago are among the older units that may have contained mercury. Before the digital revolution, these types of thermostats were common. However, it's important to understand the potential risks and how to check if your thermostat contains mercury.

Understanding Chloride-Based Mercury Thermostats

Mercury was commonly used in older thermostats for weight-based temperature sensing. In such thermostats, mercury fills a sealed glass vial that moves to indicate temperature changes. If your thermostat is metallic in appearance, it could be a sign of mercury.

How to Check Your Thermostat

It's simple to check if your older ClimateMaster digital thermostat contains mercury. The process involves opening the thermostat cover to investigate the internal components:

First, gently remove the cover to expose the back of the thermostat. Inspect for any glass vials or tubes, particularly in the back of the thermostat. If you find any amber or metallic substances within, these are likely mercury.

Don't worry if you don't see any obvious signs. Many supply houses now offer recycling programs for these thermostats, ensuring proper disposal and safety.

Recycling and Disposal Options

As of a year ago, supply houses have been accepting and recycling these thermostats. This is a convenient way to dispose of potentially hazardous materials responsibly:

Research your local hardware stores or supply houses for their recycling programs. Follow the manufacturer's guidelines for safe disposal of old thermostats. Use online resources or contact the manufacturer directly for the most current recycling options.

Proper disposal helps protect both the environment and your home from potential hazards.

Final Considerations

While older digital thermostats may have contained mercury, the risk is minimal if the thermostat is properly installed and maintained. However, if you suspect any contamination, make sure to handle it with care and seek professional advice if necessary.

Properly disposing of or checking your older ClimateMaster digital thermostats is as simple as following a few steps. Stay informed and take care of your home and environment.