Quote from: jdany on July 24, 2014, 07:11:39 PM

BTC Garden
website says:
Power Consumption is 1296 Watt for a set of miners.

Oh... the BTC Garden 1.2TH/s. Yup... you're pulling about 1300 watts or more. You're safe on either a 15A or 20A circuit. However, you WILL NOT be able to plug that second rig in the same room. Your 20A circuit can only handle 1920 watts total continuous load. Also, be aware of what other equipment is in that same room and running on that same breaker. You've got some room leftover to run some lights, laptop or low-power PC, TV etc... but definitely not another one of those mining rigs.

Quote from: jdany on July 24, 2014, 06:36:05 PM

Yes. I am in the US.

It looks like they have each room wired to a 20amp breaker. (3 "receptacles" per room

)
I have 2x 750w power supplies powering my equipment that's currently running.

I have an identical setup that I'll be adding tomorrow.

There is room in the breaker box for expansion... (spaces between current breakers)
Would 240 mean getting separate service run? Or, can they run 240 from an existing panel?
(I know nothing about electrical - please excuse my ignorance)

It's an office building - so they have a couple "double breakers" labeled for the AC unit and furnace.

Thanks guys for the input so far...

If you've got room in the panel, and that panel is driven by 2 120v mains (certainly should be), then your electrician should be able to throw a 240/30 in there. Then, he can run the proper wiring and install a new "receptacle" (the nema I stated previously) for you in one of the rooms in addition to the 3 standard ones that are currently there. Now you'll have enough power to drive 4 of those BTC Garden rigs... just need to be able to vent out all the heat they're gonna generate