I used to live in a house several years ago that had the worst fuses in them! Actually, the whole electrical set up was kind of screwy.
Anytime you would use anything that was on the same circuit as the central heating and air conditioning system it would all blow out! The one thing I will never forget was being able to turn on my stereo and jam out to some music while running the central heating and air conditioning system! Every single time I would turn on the stereo and have the central heating and air conditioning system on, the entire room’s electric would go out from the fuse blowing! It was a real pain in the rear end to have to run down the basement all the time to reset the fuses.
Also the other pain the rear end was having to relocate my stereo system to be able to use it. I had to relocate it to an outlet that did not have the same line or circuit as the central heating and air conditioning system. I moved out of this place over a decade ago now. And I can tell you that I do not miss that issue with my stereo and the central heating and air conditioning system! Where I live today has great fuses and I can run a stereo system or anything else I want on the same line and circuits as the central heating and air conditioning system. I will not have a fuse blow or partial power outage because of it!