The Honeywell Home CT31A Economy Heat/Cool Manual Thermostat is easy to adjust by moving the lever up or down and has a simple design. The analog presentation is easy to understand and it is compatible with oil or gas heating and cooling systems. Incredibly easy to install and compatible with a host of heating and cooling systems this non-programmable thermostat doesn t require leveling and comes equipped with an intuitive fan control that allows you to customize your fan s operation. Whether you choose to have it run automatically with the system or set it on constant you ll have options. Mercury free this non-programmable thermostat comes equipped with mounting hardware and a wall plate that make the process of installation even more convenient. Condition: New