[Lenny K]

Agree with John in regards to bringing down your wiring in the wall that has a vent pipe that has the shortest run to the batteries. Place a combiner box on the roof to run your wires to from your solar panels and then run 2 or 4 gauge wire from the combiner box to your charge controller which you want to have located closest possible to your batteries.

There might be other options to bring down the wire but I'm not familiar with your model. Just take your time and look on your roof and the interior for the shortest run to your basement.