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. ) C& T$ ?0 W6 N5 O9 F: R5 h . L% t9 f8 g8 b6 U0 k L$ hwhat is best connection?