Reversing Negative Pressure
Hello, I live in a 1911 Bungalow that has some great first floor insulation (hard packed cellulose in the back of the house) with spotty blown in insulation on the first floor and ok fiberglass insulation in the ceiling and floor of the second floor (2nd floor is dormered and mainly roof) with a stairway in the middle of the house. In the winter, there is airflow movement from the first floor to the second (yes, upward). When burning a fire in the fireplace, this upward movement of heat is welcome, at other times, the upward movement of cold air is a detriment. Question: how can I control and manage the movement of heat between floors in this case?
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