Both of the welders you listed are DC only machines and will not weld aluminum. Of the two, I would go for the Power I-tig mainly for the High Frequency start(although the specs don't list it). The cheaper machine is a lift start, which will be a pain to use and learn with.
I have the AHP Alphatig 200x and have been happy with the performance of the machine.
Pure Argon is fine for welding steel. Its the only gas I use, because it works for everything I weld.
If you have any experience with oxy-acetylene you will have no problem using a tig. The basic process is the same, get the puddle started and feed the rod as you go .
I bought the 250EXT with the water cooler..obviously. I upgraded to the ck 20 flex head torch with 25' cables/hoses and also upgraded to the SSC foot pedal.melsdad,
How do you like your Everlast? I am looking at their welders now an just got approved on their web site. They have a $1000 minimum for the loan so I guess I will be upgrading to something a little more than what I had in mind LOL...
Now I am looking at their POWERTIG 200DV.
I spoke to one of the sales persons and got them to switch out the torch from the #26 to the #17.
The premium startup pack and the EV-POWERPEDAL 50DL- DELUXE FOOT PEDAL are also included.
$1,300.00 shipped