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25 States Agree To Quadruple Number Of Heat Pumps In America
(cleantechnica.com)
This is a most excellent place for technology news and articles.
I live in southern Wisconsin, and that's about what they quoted me in the past year for a top of the line system of both the AC and furnace. That's a multi-stage system that runs at a low level all the time (that's the most efficient way to run it). This is before tax incentives.
A more basic system was around half that cost. If your AC and furnace need replacing, anyway, it's not much more.