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. & v3 r" X, A. H5 i5 j/ X. H . Z5 N$ R; Y. D) t2 u1 Ewhat is best connection?