I can control most, possibly all functions of my Stiebel Eltron heatpump through a HACS plugin, but I’ve found that once it was dialled in it doesn’t actually need controlling and just manages itself. So I use it purely for energy reporting.

It was the face peeling scene for me. Took months to get over that!

I’d post mine but it’s just the default overview. I really should put some effort into making something good.