If RCD is tripping after 20 minutes, this means that it is because of overcurrent - not leakage current. Leakage current trips RCD instantly.
2 meters on hull sides not problem, but 3-5 meters at bow and stern :( :?: my shed will be longer than my house and out of budget. Never going...
Thats my top question now - how much space i need to build 12 x 3.5 m wood boat?
IS -15c cold enough with a metre of snow outside ? That's about right! My preliminary calculations for 90m2 wood framed insulated workhop are...
I am thinking of starting the build of 40’ sailboat in autumn here on Baltic coast. Building mostly in autumn, winter, spring to keep me occupied...