JR are you not worried about the #12 AL wire??????????
Laast time I checked it's "is" " was " and always only good for 15 amps for receptacle loads.
Any of you old timers chime in if I was taught incorrectly!
Yes I said in my earlier post if I touched the circuit( somehow I missed the burnt breaker part) then I would put what was nec a 15amp breaker as you did. But I would still want to know what is actually on the circuit.