I wouldnt Touch a transfomer 120 welder with a 20ft Stick. Id assume the recomendation comes from someone who doesnt weld much and has little exsperince with welding machines. But obviously says otherwise
If your only welding chainsaw mufflers and sheet metal a 120 wall unit might work. But in inverter technolgy. Inverter tech has really increased what can be done while plugged into a 120 wall plug.
Some welders do still prefer tranformer machines like the hobart iron man aswell as the same machine but in blue.
180 187 along with plugs 50 amp breaker and time to wire a dedicated plug on the wall will be a far better investment. These can be found used for 200-400 sometimes bottles cords hood etc included.
Miller 215, 170 titanuim, esab 215, clutch, everlast, etc.
Plenty of inverter dual voltage machines available that actually weld good.
Pic a price point and run with it.
one and weld circles around the hobart 140 machine.
I could go on and on I just gotta say friends dont recomend a 140 transformer machine
https://www.harborfreight.com/mig-170-professional-welder-with-120240v-input-64805.html