Aprilaire 8466 Heat Pump Thermostat n/a Imported About the Aprilaire 8466 programmable dual powered Universal thermostat: 2Heat/1cool managing your home's heating and cooling system has never been easier or more efficient This programmable thermostat allows you to specify the temperature in your home on a weekly and weekend basis, giving you customizable options for each setting Set your temperature preferences by choosing between three stages of heat and two stages of cool. Easily program for the five weekdays and then choose from either a two day setting on the weekend or a day to day fluctuation