Highclass, I'm not sure on your question, I'll have to look. I don't think it is just crammed in there, but will check. It sure looks ugly though.

I think the only other thing on this circut would be range and dishwasher. The range shouldn't be much draw since it is gas right?

We had a roofer come out to correctly install the vent for the dryer that we relocated over there next to the hit water heater.

Can I run those two copper lines behind the drywall to clean stuff up? One is a ground for something and the other is a water line for the ice maker.

The wall runs parallel to the roof, so may not be load bearing. The house has a pretty small foot print so I wouldn't be surprised if just the curtain walls and the one perpendicular wall support everything. I will take pictures of the attic when I get home. Thanks for all the input so far.