The Heat Exchange Institute (HEI) is a non-profit trade association committed to the technical advancement, promotion, and understanding of a broad range of utility and industrial-scale heat exchange and vacuum apparatus. The primary purpose of HEI is to develop and publish standards which advance the technology, increase the efficiency, and promote the use of heat exchange and vacuum apparatus.

As a locally owned and operated company, Tri-Star Heating & Air takes great pride in their work and always goes above and beyond to provide their customers with the personal attention and top-quality services they deserve. Whether scheduling a routine maintenance appointment or service call for the HVAC equipment, their technicians will treat the service need with the utmost urgency.