The official word from Kranzle is that you must have AT LEAST a 4800W generator. Kranzles that we sell all have high power requirements, and the 1322TS/K1122TST/K1622TS have large spikes at startup, whenever the unit starts back up, when the trigger is pulled, and when using a foam cannon.
Many guys test the limits and run their Kranzles on 3000-3500W generators, but they eventually run into weird little issues that always trace back to power.