Today's homes are constructed much more tightly than in years past.
Home building practices now include much more air sealing to reduce
energy consumption and reduce discomfort due to infiltration of outdoor
air. However, fresh air is still needed, and introducing fresh air by
controlled mechanical ventilation is far better than counting on air
leakage through random cracks and holes in the building enclosure, with
the amount of air leakage depending on the weather. Leaky enclosures
often lead to occupant complaints and higher risk of durability
The fan and damper cycling controls discussed herein enable
ventilation air introduction and distribution in the most cost effective
way for most houses. Read on to get the details and find out where to
obtain the control hardware needed.