Hi, I'm one of the co-founders of ecovent. The LBNL study did not address systems that can monitor their impact on an HVAC system. Some homes have leaky ducts and some have very tight ducts. The only way to tell is to measure them. Our system does measure it's impact, and maximizes the comfort and savings available for a given system. We can also provide suggestions for improving your home, such as rooms that need insulation or ducts that are very leaky. The same principle applies to reducing the airflow too much with respect to high limit switches and coil freezing. We monitor and adapt to the situation. Please let us know if you have more questions.