Wow , where to begin ....
This is probly the worst case i've come across
We have a 60 amp fuse panel , originally designed for a 865 Sq ft house with nothing but a stove and recs..... now running a Heat Pump with 5kw , and more ...
But , we cant get the # 6 wire to attach in the box , so lets run a # 12 wire , and wire nut it to the # 6
Lets add a washer rec , and a Hot Water heater , and misc other recs , on a 30 amp breaker below the panel , feeding that is 2 of # 12 blue n yellow stranded
Dryer wire wont fit , so lets run that up and tie into the main unfused feed
Oh now we need power the OD unit , ok lets add a fused disconnect , install it upside down ( yes it currently ON ) and run # 12 to that , then # 6 to the OD unit.
Forgot to take pics of the PILE of burnt 30 amp screw in resetable fuses