Lantech

In my case, the heat pump is in the basement. So in the summer it’s great. It dehumidifies and cools the basement. However in the winter, it’s still cooling the basement. So the gas furnace kicks on to heat the basement back up. There’s a push-pull there.
However, I have solar, and an excess of electricity credits from it.
So what I’ve done is put it in high-demand mode which uses more electricity and less heat pump, reducing the push-pull issue.
In the summer I’ll put it back in pure heat pump mode.

https://www.scientificamerican.com/article/seeing-without-eyes1/

I skimmed it and there’s not nearly enough lengthy and highly detailed descriptions of nipples and food.