Posted by Manuel Oliveros on January 24, 2003 at 09:41:28:
In Reply to: Low energy ventilation posted by andrew peacock on January 24, 2003 at 01:31:10:
I have my doubts of such energy efficiency be true since you are actively spending energy to cause the suction, and this may cause increased cold air throughput. Then if you use special measures to limit the airflow, efficiency is in such measures and not in the system as such.
One area in which such system may have good properties is when warm air is forced to preheat the colder zones; this might reduce the heating needs there through diminished temperature gradient. And the corresponding thing for summer.
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