Perhaps you should have read my comments more carefully. There is absolutely zero "FUD" in any of them. I'm just pointing out facts. The primary fact is that you don't need historical data from heat pump installations to know if they'll be efficient in a given area or not.

They're devices. They're engineered. They have specifications. The specifications have implications as to how they will function in a given environment.

I'm not here to sell heat pumps or to make you feel good about your past purchases. Are you?