If your old thermostat contains a mercury switch, it is vital that it is disposed of properly. DO NOT THROW AN OLD MERCURY THERMOSTAT IN THE TRASH!
Each mercury thermostat has an average of 4 grams of mercury in it, which could pollute an 80-acre lake or 20 million gallons of water. Never throw mercury down the drain. It can leak out and enter the ground water which can be extremely toxic.
Go to www.earth911.com to find a drop-off or recycling center near you.
Is Your Mercury Thermostat Safe?
Yes, mercury-containing thermostats are safe. In normal use, the consumer is never exposed to the mercury, which is entirely contained in a glass bulb. Thermostats are specifically designed to protect and hold the mercury inside. The bulb is protected by a sturdy casing. Nevertheless, it is prudent to handle these thermostats with care.
I’d Like To Replace My Thermostat But I Like My Old Round Thermostat
Traditional round thermostats are available without mercury.