The RESAVE website is a guide for homebuilders and energy
auditors working in California on how to improve ventilation in
existing residential buildings. A good mechanical ventilation
system can help protect buildings and their occupants.
Inadequate ventilation often leads to increased levels of
moisture and pollutants in a home. RESAVE is a California Energy
Commission (CEC) Public Interest Energy Research (PIER) Program
whose overall goal is to facilitate the reduction of energy and
peak power spent in homes to condition air that enters from
outdoors. Infiltration, the uncontrolled exchange of air through
leaks and penetrations, typically accounts for over one-third of
the total space conditioning energy. New homes typically spend
the same fraction of energy on mechanical ventilation. This
program aims to reduce ventilation and infiltration related peak
load and energy costs by 25 to 50 percent. More on the RESAVE
program: