High Performance Mechanical Systems for Houses That Work is a mid-level, full day seminar geared towards Builders, Designers, Code Officials, and Trade Allies that focuses on HVAC, Ventilation, Hot Water, Indoor Air Quality and Electronic Home Controls in high performance housing. In the past several years, residential mechanical systems have grown in complexity and scope as energy codes have mandated higher insulation levels, better windows and tighter construction. There is now a great opportunity to rethink and redesign HVAC, hot water heating and electronic home control systems as they are major contributors to energy efficiency goals. This course will first review the key building science concepts that have changed the way houses are built and identify the relevant changes to mechanical systems. The remainder of the course will focus on the proper sizing and selection of appropriate mechanical equipment for high performance ever lower load homes. Compelling opportunities to simultaneously optimize comfort, durability, safety and health, efficiency and cost will be identified. The instructor will use lectures, case studies and group exercises to convey the information to attendees.