Which of the following statements about whole-house fans is false?(Category: AC & Heat Pump) •  The fan operation is interlocked with the house heating thermostat. •   When the fan is not running, louvers below the fan fall closed. •   These powerful fans may cause backdrafting of combustion appliances. •   House air is typically drawn from the top story of the home and discharged into the attic. •   The whole-house fan is not really an air conditioning system.