What pikachu said, plus:
The (US) national electric code says the maximum CONTINUOUS current draw is 80% of the breaker rating. In this case, the highest continuous current for a 15 amp breaker is 12 amps total. Don't forget to include anything thing else on the breaker like lights or electronics.
If you are going into full power extraction mode, you might want to check that the labeling on your junction box is correct. If a particular breaker has scattered outlets, you may want to also map them out.
One last thing, I would talk to an electrician if you house has 14 gauge aluminum wiring. This is a problem.
Thank you for all the wonderful Info. My house was just built in dec 2016, hopefully its uptodate to code standard.
I think the only stuff built to withstand miner requirements are dryer & electric oven power lines. 220v lines. They have thicker gauge wires and more amps on circuit breaker.
using 110v power supply at high wattage at constant peak usage over long distance (from circuit breaker) is bad. Not a electrician, but I believe new wiring won't forgive mining requirements and laws of physics. Stick with the dryer power lines or pull new 220v lines.