Dan Hahne has a BFA degree from University College London and an MFA from Boston University. He has been in the HVAC industry for 34 years, beginning in 1985 working as an estimator for Norman S. Wright Co. SW., in the Southwestern U.S. In the late 1990s, he transitioned into outside sales with a focus on design-build construction. In 2000, Hahne joined Air Specialty Products, a new HVAC representative company, selling to design-build contractors before moving into engineering sales in 2008, where he became a proponent and educator on high-performance HVAC system designs. In 2016, he took a new position with Varitec Solutions, Arizona, as a senior sales engineer serving in the role of educator for sustainable HVAC products, system concepts, and applications. Contact him at email@example.com.