A house owner he want to put SR heat trace in rain gutters and downspouts for winterization, he has a single house and 4 gutters/downspouts at each side, only one outlet at outside wall and one plug for plug in truck. - p9 F* c" g3 G+ R4 g' l5 g9 P . {5 F- v- |! K- }: S9 rwhat is best connection?