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1970 split-level, Derby

Submitted by Ben Stallings on Thu, 04/13/2017 - 09:46

This house suffered from inadequate ventilation in some rooms, which was so noticeable during the winter months that the air conditioner was often used to reduce humidity and the sense of "stuffiness."  A whole-house heat-recovery ventilation system was added, with a priority on ventilating these stuffy rooms, to very good effect.