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It's certainly nice that this former hedge fund manager living in Sonoma, California could afford to rebuild her house. What about the rest of us without the bucks??

Other than some arbitrary Passive House label, none of the technologies shown is new, regardless of what you call it. The "energy recovery ventilator" also goes by the name "air exchanger". It does NOT replace the heating/air conditioning systems in the house. As the contractor explains, it's main job is to control the flow of air into and out of the house, as the house "breathes", transferring any heat from one stream to the other.