Ventamatic XXDUOSTAT Adjustable Dual Thermostat & Humidistat for Power Attic Ventilators

The Ventamatic XXDUOSTAT is a dual thermostat and humidistat control engineered for power attic ventilators. Often referred to as a Duostat, this controller gives homeowners independent temperature and humidity limits so the attic fan only runs when selected thresholds are exceeded, avoiding unnecessary continuous operation. Electrical and adjustment specifications: 10 Amps, 120 Volts AC. The unit supports a temperature span of 50F to 120F, with the thermostat adjustable from 60 - 120 degrees F (common settings: 85 - 110 degrees F). Humidity adjustment ranges from 30 - 90% relative humidity (typical settings: 60 - 70% depending on local conditions). Operational notes: If either control is set too low the fan may run continuously; if set too high ventilation may be inadequate. Benefits: Provides energy-efficient control of attic ventilation by removing excess heat in summer and reducing attic humidity in winter, helping equalize inside and outside attic temperatures without manual switching. Product includes a limited lifetime warranty.