An HVAC Welding job involves welding and fabricating metal components for heating, ventilation, and air conditioning (HVAC) systems. Welders in this field work with sheet metal, ducts, and piping, using various welding techniques like MIG, TIG, and arc welding. They ensure that HVAC systems are securely constructed and leak-proof to maintain proper airflow and efficiency. HVAC welders often collaborate with HVAC technicians and engineers to install, repair, or modify systems in residential, commercial, or industrial settings. Proper safety protocols and welding certifications are typically required for this role.