or pull the plug. Why make heat in the summer? Be careful floating equipment with EMI filters on the power lines referenced to the chassis. A floating chassis could end up hot and give you a tingle
I use an isolation transformer to run my receiver and all my audio stuff. The secondary is mid-tapped to ground, so that the entire 110 volt line is balanced. The maximum jolt you could get from ground would be 55 or 60 volts. This helps reduce hum from ground loops.
Mine is rated at only 400 v-a; it is an old Isotap transformer designed for bench work at TV repair shops. It barely gets warm to the touch when idling. I used an external precision tapped inductor to establish the mid-tap to ground.
If I could find a large enough transformer that ran with good efficiency and had a built-in precision mid-tap on the secondary, I would run every 110-volt circuit on the entire place that way. Of course, I would have to run the 220-volt circuits directly off the mains, but they are already balanced to ground, right at the pole pig.