More energy-efficient HVAC equipment can cost more relative to conventional equipment. However, by reducing heating and cooling loads through good passive design, the mechanical engineer can often reduce the size and cost of the system. Reduced system siz

More energy-efficient HVAC equipment can cost more relative to conventional equipment. However, by reducing heating and cooling loads through good passive design, the mechanical engineer can often reduce the size and cost of the system. Reduced system size can save money through:

• smaller chillers or boilers;
• smaller fans, used less frequently;
• smaller pumps and auxiliary systems;
• smaller ducts;
• and less square footage devoted to mechanical systems.