I really admire what you all are doing. I am building a house and I just spent countless hours obsessing over the best way to approach HVAC. It's a bewildering

I really admire what you all are doing. I am building a house and I just spent countless hours obsessing over the best way to approach HVAC. It's a bewildering topic, thick on opinion, heuristic, and wisdom that's of questionable recency. What I want is almost exactly what you describe. A system that holistically optimizes for upfront cost, operating cost, sustainability, temperature, humidity, room-to-room preference/utilization patterns, exhaust of indoor pollution, filtration of outdoor pollution, and ease of maintenance. In the process, I realized that: - Most professionals pick equipment that operates on these things independently, and hope for the best, based on experience. - The ability to comparison shop or get definitive answers on things is very limited. - All the tax incentives don't seem to offset the upfront cost of the machinery that qualifies for incentives. - A lot of professionals are not up to date on their knowledge. I love my general contractor dearly...but he's old school and I had to teach him what an HRV was. After all of that research, I ended up opting for a very conventional ducted gas furnace + A/C, with an HRV. So you're really speaking my language with what you are describing. Some of the objections people have raised are things I've come across in my own research. But it sounds like you're trying to build something that attacks the whole problem at once, probably understanding that piecemeal solutions will get you stuck having to work within confines of the status quo. But, if you succeed, you might stake out a novel model, like Tesla or direct-to-consumer insurance. Sounds very risky, but I wish you all the best.