this winter I have been running an antminer S9 setup in a CryptoCloaks case. thoughts:

• you can run it at whatever wattage is right for you. at about 800w I'm heating my apartment and getting around 10/TH.
• unmodified, noise is a thing. Not as bad if it's downclocked, but still definitely noticeable. think vacuum in the next room over. you can add fans to make it quieter as well.
• it can be plugged directly into the wall for most US homes, so that was nice to figure out