We looked into this for a while for some of our products and even filed some ip (such a waste of time). We were doing it with thermopiles on our vents and usin

We looked into this for a while for some of our products and even filed some ip (such a waste of time). We were doing it with thermopiles on our vents and using a buck and boost. It worked for heating well, maybe well enough for cooling, but was price prohibitive (would up retail 50% at least). https://flair.co https://flair.co