A method includes receiving, by a monitoring system that is configured to monitor a property, and from a sensor, sensor data, receiving data indicating an operational state of the HVAC system, determining that the HVAC system is providing air to a smart vent device, determining (i) a particular direction for the smart vent device to direct air flowing from the HVAC system and into the room of the property and (ii) a particular flow rate for the smart vent device to provide air from the HVAC system and into the room of the property, and providing, to the smart vent device, instructions to (i) direct air flowing from the HVAC system and into the room of the property in the particular direction and (ii) adjust the flow rate of air flowing from the HVAC system and into the room of the property according to the particular flow rate.