The WiFi Thermostat 563 operates either a multi-stage conventional or heat pump HVAC system, a fan, and up to two accessories, including a humidifier, dehumidifier and ventilator. The mobile and web app allow the thermostat to be controlled remotely and includes an Away mode for additional energy savings. The thermostat includes a programmable schedule with early start to heat up or cool down the room by the scheduled time. An optional floor sensor can be installed to enhance comfort and protect floor coverings when operating radiant floor heating systems. Supports dual fuel systemsEmail error and warning notifications, automatic time clockEnergy monitoring, multiple background colorsHumidifier window frost protection, conventional systems - 2-stage heating, 2-stage cooling, fan and 2 accessories7 day programmable schedule, early startMobile and web app for remote control, away energy savings modeHeat pump systems - 4-stage heating, 2-stage cooling, fan, reversing valve and 1 accessory