>> Just a thought I have one of those instance water heater under my home sink
>>that run water through a small tank its 120 volts would a 12 volt to 120
>>inverter be strong enough?

The "problem" is that watts = volts x amps, so a heater of (say, only)
120 watts needs 1 amp if 120 V current.  But it needs 10 amps if 12 V
current.  Redo the math with a 1200 watt heater....   :-(

                                Richard A Jones
                                Boulder, Colorado