I have dabbled in mining with Whatsminers in my personal storage room, but now my extended family is catching the bug.  I do not think their homes are appropriate for rigging up 220v lines or any serious mining, so I'm wondering if there are modest setups out there that can be run on 110v, and not render a room 100 degrees or otherwise unusable.

Any opinions on this?

No alt-coin mining, only interest in SHA-256.