I agree with everyone here, especially the fact that 220 units have a better duty cycle and quality. Be sure to get a unit that has infinite controls for wire feed and voltage. I have heard of HTP, they were big in NASCAR country a while back and were supposed to be real good. I own a L-tec mig130, and I love it. L-tec which was union carbide, and later became ESAB does not make this model anymore. If I have to start over, I'll buy a Miller!