Ecovent works with all standard forced air (central) systems. Ecovent is not a solution to regulate:
Radiant heat
Ductless systems
High-velocity systems
Window units,
If any of these systems are used in addition to central air, Ecovent will still work to regulate the airflow when the central air system is running.
Ecovent's compatibility depends on the size of the vents in a home and having a compatible thermostat.