HRV with 4″ ducts and lotta other questions

I made a post a while back:https://www.reddit.com/r/hvacadvice/comments/xkgeka/hrv_via_bathroom_exhaust/Basically, trying to figure out how to do my hrv, the gist of it is I have only the fresh air intake and nothing… I made a post a while back:https://www.reddit.com/r/hvacadvice/comments/xkgeka/hrv_via_bathroom_exhaust/Basically, trying to figure out how to do my hrv, the gist of it is I have only the fresh air intake and nothing…Read MoreGreenBuildingAdvisor