Honestly this is genius. I am all for green initiatives that actually make functional sense. We need more of stuff like this.
I feel like this is a dumb idea as I know very little about the subject
That is how you learn thing that you don't know. After digging into the subject I found that there are heat pumps that use super critical CO2 to move heat in a very similar way in industrial applications where flame heat or electric heating elements aren't appropriate.So, "I have no idea what I am talking about but lets do it this way" ... ? lol