INNCOM E-Series Smart Digital Thermostats save energy by initiating and maintaining temperature setbacks when the guestrooms are rented but unoccupied and even deeper setbacks when the rooms are unrented. ASHRAE studies have shown that for every degree of setback, approximately 3% of the energy used to heat or cool the room is saved. An INNCOM Networked EMS delivers 25-40% guestroom HVAC energy savings, based on HVAC runtime reduction from a PMS-integrated EMS vs. ETM (traditional thermostat mode) in hotels with average occupancy and <500 rooms.