National Thermal Engineer Day is observed worldwide every July 24 to recognize the contributions of thermal engineers, whose expertise is crucial in various fields such as HVAC system design and electronics cooling. Established in 2014 by Advanced Thermal Solutions (ATS), this day aims to highlight the importance of thermal engineering, which involves the movement and transfer of heat energy. Thermal engineers apply their knowledge of thermodynamics and fluid mechanics to develop systems like boilers, refrigeration units, and heat exchangers, impacting everyday appliances. Celebrations include thanking thermal engineers personally or sharing posts on social media with the hashtags #NationalThermalEngineerDay and #ThermalEngineerDay. The date was chosen because it typically falls on one of the hottest days of the year in the Northern Hemisphere, underscoring the relevance of thermal management in our daily lives.