Our apartment's electrical system is pretty old, as in it still uses fuses, not circuit breakers.

For the first time today, I blew one of the fuses. We moved our microwave over to the same circuit as the fridge, which worked fine. What I didn't realize was that the other appliances (particularly the toaster oven) were on the same circuit as well. As soon as all 3 of those were on, piff... there goes the fuse.

After excavating the fuse box in the closet, I found that the fuse that blew was a 20 amp (screw in a la light bulb style). All I have for replacements is 25 amp fuses, so I used one of those. I'm guessing this is not the best plan, but hey, my fridge is full and it's Xmas. So is it safe to leave that fuse in? Is it possible that the 20 amp fuse was misused for that circuit? Is there any way to tell without calling in a pro?


I am the Doctor, and THIS... is my SPOON!