If you could see my house, you would understand that no sane woman would ever let me do what I do. (3 computers in every room, and all with one or 2 video cards in every computer producing heat)
This computing habit of mine (I have a similar situation to you, though my fleet isn't nearly as large), is possibly one small reason that I'm still single.
Unfortunately, I have a small apt., with apparently a single 20A circuit for both my bedroom and living room.
Currently, have two PCs in bedroom crunching, and three in living room. 8 GPUs total, with one more on the way soon.
Assuming that my hardware holds up, and I'm still living here in Dec., then I'm definitely looking forward to my average daily PPD during the Dec. F@H race with these rigs.
(Currently using them for mining, I need the money.)
Edit: VERY Good news, I discovered something in my breaker box, there are a few outlets on their own circuits, or pretty-much so. I've moved a couple of rigs to the living-room "A/C outlet wallplate", and plan to hook up my 6-GPU open-frame rig there, on my dining-room table.
Could probably turn it to DC when I'm not mining, which probably won't be anytime soon, but who knows. At least, it will be there in Dec.