Hi , I have purchased a 3750 watt/ 4000 watt surge , 120/220 20 amp breaker Husky generator from Home Depot, It won' t run my 120 v. Hobart welder though the welder runs fine off House domestic 110 plug in even with a long extension cord. The House plug in is on a 20 amp breaker. Previously I had rented Generac generator that was of similar wattage and it did fine with the welder. I took the generator back to Home Depot and they exchanged it for another which does the same thing. Any help will be appreciated. Bob