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Comment on Ventamatic XXDUOSTAT Adjustable Dual Thermostat/Humidistat Control for Power Attic Ventilators by Renee Bullis. 1 of 1 people found the following review helpful: Attic Fan Thermostat/Humidistat, October 2, 2010 By Renee Bullis (Rensselaer, New York United States) - Amazon Verified…