Point source ERV (or HRV) and mixing
In my home, the whole basement has been renovated from a leaky post ww2 bungalow(Southern Ontario), making it much tighter than it used to be. The ventilation on the main floor is and has always been old, leaky and sufficient, but it is the basement where IAQ needs improvement.
With a forced air HVAC, Dr. Lstibrek says that mixing occurs anyway in supply/exhaust and balanced systems in this great article (if i read this correctly):
Could a centrally placed point source ERV in the basement be just as effective at improving IAQ as a Multi-point HRV with partial connection to the air handler since mixing occurs anyways, especially if you don’t have an ECM motor?
Could 1 point source ERVs on each floor in a small home such as the Panasonic model be a viable alternative to a traditional HRV balanced system