The 2006 International Mechanical CodeA(R)is designed to provide up-to-date mechanical code addressing the design and installation of mechanical systems that emphasize performance. It comprehensively regulates mechanical systems and equipment including HVAC, exhaust systems, chimneys and vents, ducts, appliances, boilers, water heaters, refrigerators, hydronic piping, and solar systems. The 2006 edition establishes minimum regulations for mechanical systems using prescriptive- and performance-related provisions.