The universal Aprilaire Model 8466 Thermostat is a programmable thermostat that allows you to create personalized programs based on your lifestyle. This enables you to control your heating and cooling system for total comfort and efficiency. The simple addition of a Model 8466 programmable thermostat offers: Energy savings: Set back the temperature overnight and when you are away. A programmable thermostat can save you up to 30% on energy costs annually. Progressive recovery: This feature ensures your home is always at your desired temperature by activating the heating and cooling equipment prior to a scheduled setting; so your desired temperature is assured just when you want it. Can control Single Stage or Multistage standard or heat pump systems.

The universal Aprilaire Model 8466 Thermostat is a programmable thermostat offering simple and convenient functions in a quality digital control. It works with both standard and heat pump HVAC systems and is installed by a local HVAC professional. Features include - The Aprilaire Model 8466 Thermostat is easy to program and helps you save money on energy costs by allowing you to set back the temperature during the night or when you are away. Convenient 5/1/1 day or 5/2 day programming lets you customize your weekday and weekend schedule based on your needs. 5/1/1 day: Create a different program for weekdays, Saturday and Sunday. 5/2 day: Create a different program for weekdays and weekends.

Other features include - A large 4.5 square-inch LCD Screen with a high-contrast, backlit display for easy reading. Progressive recovery ensures your home is always at your desired temperature by activating the heating and cooling equipment prior to a scheduled setting, so your desired temperature is assured just when you want it. Easy-to-use temperature control and the ability to override the program schedule at any time.

Simultaneous temperature display of room temperature, temperature setting and outdoor temperature, in Fahrenheit or Celsius. Circulate fan mode helps you prevent hot and cold spots and maintain consistent temperature throughout your home. Also keeps your air cleaner. Service reminders for your HVAC system, humidifier, dehumidifier and air filter protect your equipment and ensure the longevity of your investment.

Permanent memory maintains programming, time and date during a power outage. Simple setup menu for activating optional features. Quick-reference instructions on board. Soft-touch keys. 5-year warranty