hi guys, thanks for reply's :)
ok heres the mist unit im using, recieved it today & have to say its a great bit of kit
https://www.modelboatsmoke.com/ a member on these forums is making a PCB for me which will allow for proportional control so more or less steam is produced depending on throttle, infact i got a msg earlier to say hes completed & tested it so its ready to go! :)
As you poiinted out derek the mist unit has no protection so at the very least i will fit an action inline fuse between the output from the P107 & the mist unit converter, what amp fuse should i use as im also not very clued on up on which size fuses to use for different modules!?
Like i say ideally i would rather keep it all on the same circuit so it keeps the wiring simple & neat with just the single power switch, but if this might cause an issue in terms of overload then i will run the motor/esc off a seperate circuit?
cheers again guys much appreciated!