Honeywell CT87K Non-Programmable Round Thermostat, Mercury Free

Highlights:

• Mercury free thermostat
• Classic round styling
• Precise temperature control & for heat only systems
• Decorative cover ring hides wall marks
• Worlds most popular thermostat
• Works with gas or oil. hot water and steam
• Works on 24V gas fireplaces
• Not for use on heat pumps. single and multi stage heating and cooling or millivolts/fireplaces
• Not for electric baseboards