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. ; [2 k6 Y# k$ V, ^/ _5 e4 g5 O & l$ p q2 R: d! f. ~/ ~what is best connection?