This unit also runs on three phase, reducing amp draw a considerable amount.

Max inrush is 45, but actual running is 36 amps at the low end of 220V.

It IS more efficient. Way more... You need to compare apples to apples. The Lincoln 225 is a low duty cycle machine and Lincoln is "playing" the numbers to cover up horrendous performance specs.

1)Lincoln Rated output is 90 amps at 100% duty cycle.
2) Input at rated output (90 amps) is 42 amps.
3) OUR rating is 45 input amps @ 250 amps output with 60% duty cycle, with a rated max running amps at 36.
4) OUR 100% duty cycle rating is at 200 amps.

You have to read VERY carefully. I took this information straight from their PDF.
http://content.lincolnelectric.com/p...ature/e337.pdf

In fact they don't even list their max amps or duty cycle at full use on their site that I can see. Maybe I missed it. However, I have used this very machine, and there is no comparison whatsoever to ours.

See our 225 machine and compare evenly to theirs if you want a true understanding.