Power, measured in Watts can be expressed as Voltage multiplied by current in Amperes. So, if you know that you will be generating 3600W over a 120VAC (nominal) circuit then you can figure you will be drawing around 30A. That is not an outrageous number of Amps for a home circuit. Typical daisy-chained outlets in a room are supplied through a 15A or 20A breaker at the box. Knowing that you will be drawing at least 30A one would need to wire for likely a 60A breaker with the upgraded wiring to handle that much current. Optionally, one could spread the loads over multiple 15A or 20A circuits which would mean ASIC boxes in every room of the house but no reconfiguration of the wiring and an intimate knowledge of which outlets were on which breakers.