Buying welders
What welder do I need for sheet metal ducts?
Quick answer
For sheet metal ducts: spot or TIG. That's driven by thin galvanised sheet: spot for structure, TIG for seals, fume extraction always.
Why this machine
Thin galvanised sheet: spot for structure, TIG for seals, fume extraction always. Match the process to the material, thickness and conditions before you look at brands or prices.
Budget expectation
Whatever the category, check the live band in our price index before shopping — and remember the helmet, gloves and ventilation are part of the purchase, not extras.
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