33coupe: I did ask about thermally broken windows, came back at an estimated $14k.
I also heard back from one company about Ducted heat pump. $13k ducted, $16.5k with lossnay system.
Our upgrade to thermally broken throughout the entire house was less than $4.5K for a larger house than you're building. Did that $14K include a Low E upgrade as well, and if so what type?