Air flows (cfm) – Superinsulated / Super-tight home
After some review it seems that typical heating/cooling air flows in a super insulated / super tight (0.5 ACH50) home can be in the range of 20 cfm/100 sq.ft. (e.g. 400 cfm for a 2,000 sq. ft. home). For the same home/occupancy, ERV/HRV air flow calculations are in the 100-200 cfm range. So no longer a 10x difference. So why all the talk that these two systems still need to be separate?
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