@refrigerationmentor: Most brazing mistakes start with heat. The alloy follows the heat, so how you apply heat matters. Join our live Training Webinar on Brazing with Refrigeration Mentor and the Copper Development Association. July 23, 2026 12:00 PM Eastern Time Link in bio. #RefrigerationMentor #refrigeration #hvacr #brazing #refrigerationtraining #refrigerationtechnician