When the central air is running, cold air blows outside through the intake and exhaust pipes from the HE furnace. Is this normal? Can I block/seal off these pipes for the summer and uncover them before we use the furnace for heat in the fall. Or is there something wrong with the system?
Central air and high efficiency furnace
air-conditioningheatinghvac
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Best Answer
Cold air should not be blowing outside.