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Why humidity control matters more than temperature

4 min readSunshine State Team

That sticky feeling isn't just about the thermostat setting. Here's what dehumidification actually does.

Homeowners tell us the same thing every summer: 'The thermostat says 74, but it feels like 80.' They're not wrong. The thermostat only measures temperature — comfort is temperature plus humidity, and in Florida, humidity is the bigger lever.

The 55% rule

Indoor relative humidity above 60% feels muggy, encourages mold, and makes 74°F feel warm. Below 45% and static shocks return. The sweet spot is 45–55%. Once you live in it, you'll never go back.

Why your AC alone isn't enough

An air conditioner dehumidifies as a side effect of cooling. If your system is oversized (very common), it satisfies the thermostat in a five-minute blast and shuts off before pulling meaningful moisture out of the air. Result: cool and clammy.

What actually works

  • Right-sized, variable-speed equipment that runs longer at lower output
  • A whole-home dehumidifier tied into your return duct
  • Sealing duct leaks and attic bypasses that pull humid outdoor air in
  • A thermostat with a true humidity setpoint, not just temperature

Fix humidity and you can raise your thermostat 2–3°F without noticing. That's real money on the power bill.

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