How to Reduce Indoor Humidity in a Georgia Home
Comfort is not just temperature. At 50 percent relative humidity, 76°F feels pleasant. At 65 percent, the same 76°F feels clammy and heavy — and Columbus summers push interior humidity that direction constantly.
An air conditioner dehumidifies as a byproduct of cooling, which means how it runs matters as much as how cold it gets.
Set the thermostat fan to AUTO
This is the single most common fix. With the fan on ON, the blower keeps running after the compressor stops, and moisture that condensed on the coil evaporates right back into the house. AUTO lets that water drain away instead.
Longer cycles remove more moisture
Moisture removal ramps up after the coil has been cold for several minutes. Short cycles cool the air without pulling out much water, which is why oversized systems often leave homes cold and damp. Raising the setpoint slightly can lengthen cycles and improve comfort.
Control moisture at the source
- Run bath exhaust fans during and after showers
- Use the kitchen range hood when cooking
- Keep crawlspace vents and vapor barriers in good condition
- Avoid drying laundry indoors during humid months
- Fix plumbing leaks and check that dryer venting terminates outside
Check the equipment side
A dirty coil, low airflow, or a low refrigerant charge all reduce moisture removal. If humidity has recently gotten worse without any change in habits, that usually points to the equipment rather than the house.
When a dehumidifier makes sense
In tight newer homes with low sensible load, the AC may satisfy the thermostat before it removes enough moisture. A whole-home dehumidifier or a variable-speed system that runs longer at lower capacity addresses that directly.
Frequently Asked Questions
Why does high humidity make my house uncomfortable?
Humid air slows evaporation from your skin, so your body sheds heat less effectively. The same air temperature feels several degrees warmer at high humidity, and damp conditions also encourage mold and dust mites.
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