Is my generator big enough?

pianotuna wrote:


The engine only has so much HP and is rated on gasoline. If you convert it to propane it has less HP. When you have less HP it does not have enough to pull the amount of watts that the generator pulls.

IOW's the engine will not have enough power.

If the maximum torque capacity of the motor is precisely balanced with the maximum torque needed by the generator when operated with gasoline, I guess what you are saying would make sense. But if the motor is a little oversized (which is how I would design any power plant; to account for all unknown variables, if you know what I mean?), then there would not be any or very little reduction of wattage potential. It all depends on what the torque potential of the motor is, which would take detailed knowledge of the power plant design, which I don't know. The only way for me to really tell would be in actually testing though.

If my calculations as far as wattage are correct (13.8 amps @ 115 Volts = 1587 watts), then 2000 watts should be plenty to run my AC with a little to spare. But you and I both know that practical application beats theoretical calculations every day of the week. Especial now days, when power plants never live up to their listed potential, as a result of poor manufacturing quality and controls.