How Humidity Affects Indoor Comfort in Mississippi

Why lowering the thermostat backfires

Setting a lower temperature makes the system reach setpoint faster and shut off sooner. Shorter cycles remove less moisture, so the house gets colder and can still feel damp.

Longer, steadier cycles are what dry a house out. That is why correctly sized equipment and staged or variable speed systems handle humidity better than oversized single stage equipment.

What actually helps

• Set the fan to auto rather than on, so moisture on the coil drains instead of re evaporating
• Correct duct leakage, especially return leaks in attics and crawl spaces
• Confirm the system is not badly oversized for the house
• Verify the condensate drain is actually carrying water away
• Address crawl space moisture where present
• Add whole home dehumidification when the above are already handled