We used our Cascade last in July. Just went to check on it. It's parked under my barn and hooked up to power. Everything is dead. No lights, power control panel, no power except micro wave when plugg...
If you have the fireplace option you can remove it with 4 screws and visually trace the wiring into the basement. I have re-routed wiring for my inverter that used to be installed in that cavity into the basement where newer models relocated them to. Gives you some perspective to plumbing also.