@glennf Why is it that almost every time I open a screenshot like this I try to click the "OK" (or "x") button to close it?

@joelle You have to complete the task quickly. Somewhere there's a self-driving car waiting for the answer.

@glennf Have you factored in the replacement cost of the inefficient existing devices?
If you maintained the status quo you would have to replace the wall ACs and furnace at some point.
You now have a heat pump at the beginning of its service life.