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Heating and Cooling Guidelines Space Temperature Settings Occupied Hours During the scheduled hours, occupied offices in buildings with centrally controlled systems: • Thermostats in individually controlled spaces should be set in the range 68°- 72° F during the winter and 72°- 76° F during the summer (as recommended by American Society of Heating, Refrigeration and Air Conditioning Engineers ASHRAE). • Office spaces, meeting rooms, and other common public spaces will be maintained at these temperature set points when open for business or occupied. Unoccupied Hours During unoccupied hours, including weekends and holidays: • The temperature may be set at a level that will allow Douglas County to efficiently and economically conserve energy. • Heating, Ventilation, and Air Conditioning (HVAC)/air exchange systems may also be turned off to conserve energy. Occupant Behavior • Building occupants can contribute to their own comfort by wearing seasonally appropriate clothing; making sure that windows, shades and blinds work and are positioned for the season; or by re-arranging their workspace to improve comfort. • Keep thermostats clear. Do not block thermostats with furniture or equipment. Move any heat generating equipment away from thermostats (lamps, computers, monitors etc.) as this equipment can cause false readings at the thermostat. • Windows should not be opened during the winter or summer months as this creates an imbalance with the HVAC system. • Low wattage personal heaters with occupancy sensors are available through the Douglas County Building and Grounds Department. These are the only approved heaters to be used within the facility and available at a cost of $75.00 for the heater and occupancy sensor.