Oh, sorry, I guess I was brainwashed by the "anti heat pump mafia". I had this conversation with three HVAC installers but according to this thread any HVAC installer that speaks ill of heatpumps is old and stupid. Recently, I stayed at an AirBNB recently that had a heatpump and the temps dropped during the deep freeze and it was running 100% of the time and failing. The AirBNB owner said it was brand new and I would be responsible for excessive electricity use. They didn't charge me. Based on this, I am sooo glad I replaced my dead furnace with gas three years ago and steered clear of heat pumps.
Old heat pumps didn't do well in old temperatures. In the 80s and 90s, a heat pump couldn't handle freezing temps.
Modern heat pumps do fine well below 0 degrees Celsius. Here's one that's great to -15 C and okay down to -25 C[0]. If you search cold-climate heat pumps, you'll find plenty of information about how modern heat pumps are fine in most the temperatures you'll find in most of the US (including up north).
(I have heard that a lot of them are still only available in Europe, but you can definitely find some in the US.)
You clearly don't know if this is your only source.
"Below 0° Fahrenheit, heat pumps can still heat your home with more than twice the efficiency of gas heating or standard electric heating (such as electric furnaces and baseboard heaters). They’ve been tested and approved as far north as the Arctic Circle, and are popular options in very cold countries like Finland and Norway."
Finland has over 60% heat pumps.
And heat pumps, just to be clear, work by generating a temp difference. The main problem is the efficiency and that drops also because there is a heating cycle needed for the air intake.
How many models did you actually research yourself?
The reply made no point, so what exactly stands? Reply just said I don't know what I'm talking about, so I explained where my knowledge came from, which is more than the reply did. And somehow that's a better "point"? kids these days.
This whole thread is people who don’t own a house or heat pump screaming they are right and people who do own a house just shrugging because they’ve experienced reality.
When you grow up and need to drop $20k of your hard-earned cash on a new HVAC, it'll be funny to see if you decide to take a chance when people you know that have heat pumps are bitching about them not working, or if you decide you want to be warm and not deal with the hassle.
But do go on about how I don't know enough.