Uploaded August 2025 | Updated September 2026, 2 weeks ago
In this demonstration of Brazing Heat Protection with Viper Wetrag, Roman and Becca from Refrigeration Technologies show the critical importance of protecting heat-sensitive components during brazing operations. Using an electronic expansion valve as an example, they compare traditional wet rags versus specialized heat protection products.
The video reveals the hidden dangers of using regular wet rags - including water dripping onto electrical components, steam generation that can blow out flames, and moisture contamination that can turn into acid inside HVAC systems. Through a dramatic side-by-side comparison, they demonstrate how unprotected components can suffer permanent damage from heat transfer during brazing, with plastic internals melting and warping.
This is essential viewing for HVAC technicians who want to avoid costly component failures and ensure proper installation techniques. Learn why using traditional wet rags might not always be the best approach, and discover better alternatives for protecting sensitive valves, sensors, and other heat-sensitive devices during brazing operations.
Read all the tech tips, take the quizzes, and find our handy calculators at hvacrschool.com or the HVAC School Mobile App on the Google Play Store (hvacrschool.com/play-store) or App Store (hvacrschool.com/app-store).
In this demonstration of Brazing Heat Protection with Viper Wetrag, Roman and Becca from Refrigeration Technologies show the critical importance of protecting heat-sensitive components during brazing operations. Using an electronic expansion valve as an example, they compare traditional wet rags versus specialized heat protection products.
The video reveals the hidden dangers of using regular wet rags - including water dripping onto electrical components, steam generation that can blow out flames, and moisture contamination that can turn into acid inside HVAC systems. Through a dramatic side-by-side comparison, they demonstrate how unprotected components can suffer permanent damage from heat transfer during brazing, with plastic internals melting and warping.
This is essential viewing for HVAC technicians who want to avoid costly component failures and ensure proper installation techniques. Learn why using traditional wet rags might not always be the best approach, and discover better alternatives for protecting sensitive valves, sensors, and other heat-sensitive devices during brazing operations.
Read all the tech tips, take the quizzes, and find our handy calculators at hvacrschool.com or the HVAC School Mobile App on the Google Play Store (hvacrschool.com/play-store) or App Store (hvacrschool.com/app-store).
