Oxygen-acetylene torches have higher temperature and more concentrated flames, making them suitable for precise heating and cutting. Air-acetylene torches produce more convective heat, so caution is necessary. The Refrigeration Technologies WetRag HeatShield can protect against heat damage and injury. Always follow safety guidelines and use protective equipment when working with high-temperature tools. Check out our YouTube channel “HVAC School” for the full video. #HVACbrazing #brazingtorch #HV