2.List the thickness of the metals you need to weld. This determines the power requirements of the welding machine. Remember that the more power the machine has the higher the cost, so don't overestimate your needs.
3.Research the types of welding equipment currently available. Consult with sales people at your local welding supply store.
4.Research the electrical requirements. Some welders run on 115 house current, others require 230 or higher voltage. You may need to have an electrician add additional power to run the welding equipment.
5.Choose welding equipment that has the greatness diversity if you will be performing different types of welding.