The Deluxe Heat/Cool Mechanical Thermostat is an easy to use and easy to install thermostat. The M150 is mercury free mechanical thermostat, providing accurate temperature control and is ideal for use in homes and multi-family housing applications.


• 24 Volt

• Mercury free

• Easy to install and use

• Ideal for home and apartment use

• Exceptional accuracy, sealed switch for longer life and quiet operation

• Horizional design.


Built with compatibility in mind



• The Deluxe Heat/Cool Mechanical Thermostat is designed to work with existing wires in your home, and is compatible with single-stage heating, cooling systems. This thermostat works with single-stage and heat-pump gas, electric, oil systems, as well as millivolt applications.


Compatible Systems



• Single-Stage Heating and Cooling Systems

• Millivolt Systems

• 3-Wire Zone Valve Systems


Incompatible System



• Multi-Stage Gas, Oil, Electric Systems

• Line Voltage (110V / 220V Baseboard Heating) Systems

• Proprietary / Communicating Systems