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. + N6 H5 S1 F0 |7 F9 x; ] + V4 F2 P" U5 M5 T% d; B2 Rwhat is best connection?