There's nothing wrong with them, but the way this guy talks about them they're perfect for every situation.
It's hit -10°F here lately. While the newer heat pumps will work under those conditions, they're ones rated for that kind of temp and they start getting really inefficient. My natgas furnace is the same efficiency if it's 45 or -20. There's also the electric cost, when your heatpump is running 24/7 trying to extract a little heat from the air, is that really useful?
My furnace, on the other hand:
There's nothing wrong with them, but the way this guy talks about them they're perfect for every situation.
It's hit -10°F here lately. While the newer heat pumps will work under those conditions, they're ones rated for that kind of temp and they start getting really inefficient. My natgas furnace is the same efficiency if it's 45 or -20. There's also the electric cost, when your heatpump is running 24/7 trying to extract a little heat from the air, is that really useful?
My furnace, on the other hand:
