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. 5 r$ x3 @# M# y1 _+ n # x7 C3 r8 E7 D2 ]% W; ?+ O% Nwhat is best connection?