Do you mean a ground source heat pump? What is the lowest temperature there?

Unfortunately I’ve heard that a lot of people especially from academia are moving to bluesky. I’ve already started talking to some people I know about Mastodon. I hope the word spreads around.

Non tech. Designer.

Set a timer for 30 minutes and study. Give yourself a 5 minute break / treat. But try not to overload yourself with more info from the Internet.