Air Vent Attic Exhaust Fan Humidistat Settings

You might also install a humidistat that automatically turns your attic fan on to vent out humidity once the level exceeds 70 percent.

Air vent attic exhaust fan humidistat settings.

The attic fans are fitted with thermostats that will switch on and off the fan depending on the homeowner s preference. Advani is adding moisture to the air with a humidifier and that hot air rises finding ways of getting into the attic sullivan says. Diagram wiring for air vent inc thermostat full quality gearheadache kinggo fr. Air leaks in the lower part of the house in the basement for example allow outside air with low humidity to get into the house.

Operational the fan should start automatically when the attic temperature rises above the preset setting and cuts off when the attic is cooled down to approximately 10 below the thermostat setting. As a general rule for power attic vents your normal temperature setting will range from 95 115 f and humidistat setting from 60 70 depending on average regional temperatures and local humidity levels a setting too low will run the fan continuously and a setting too high will result in inadequate ventilation. Pass through the attic not only exhaust outside but the pipes used to convey the outgoing air are air sealed as well. Electric powered attic vents use a thermostat to fight heat and a humidistat control to help prevent moisture buildup inside the attic.

Lowering the temperature in the attic can lower the temperature in the rest of the home reducing the amount of time the home s air conditioner spends running. In such doing the attic fan will reduce the temperature in the attic space that in turn cools down the whole house. There are also gable vents and a 1200 cfm electric attic fan at the peak. Proper humidistat setting attic fan.

In winter the humidistat operates the attic fan when the relative humidity exceeds a preset level usually 40 to 50. Dual thermostat humidistat control for power attic ventilators attic vs whole house fan pros cons parisons and s humidistat thermostat attic exhaust ventilators gable fans grainger supply. An attic fan works by drawing in cool air to the attic space that pushes out the hot air through vents. Attic fans draw cooler outside air into the hot attic area through attic vents located either on the roof or on the wall near the gable to reduce the space s temperature.

In summer the thermostat operates the fan when the attic temperature reaches a preset level usually 90 to 95 degrees f. Click to see full answer.