Florida's Humidity Problem — and Why AC Isn't Enough
In Lake Buena Vista and the greater Disney Springs area, outdoor relative humidity averages 74% year-round and frequently exceeds 90% during summer afternoons and rainy season. Your air conditioning system does remove some humidity as a byproduct of cooling — but it's sized and optimized for temperature control, not dehumidification.
The problem is especially pronounced in the spring and fall, when temperatures are mild enough that the AC runs infrequently — but outdoor humidity is still very high. Without the AC cycling regularly, indoor humidity can climb rapidly. Vacation rental properties face this acutely: when no guests are present and the thermostat is set to a higher setpoint to save energy, humidity can reach mold-promoting levels within days.
The EPA recommends maintaining indoor humidity between 30–50%, with most Florida HVAC professionals targeting 45–55% as a practical year-round goal in this climate. Above 60% humidity, mold growth becomes a serious risk.
Health and Comfort Effects of High Indoor Humidity
- Mold and mildew growth — on walls, ceilings, furniture, and inside the HVAC system; can cause serious structural damage and health hazards
- Musty odors — even without visible mold, humidity above 60% creates persistent musty smells that guests immediately notice
- Dust mites — thrive at humidity above 50%; a leading trigger for asthma and allergies
- Discomfort at any temperature — high humidity makes 78°F feel like 85°F due to impaired evaporative cooling on the skin
- Wood damage — doors, cabinets, and hardwood floors swell, warp, and deteriorate in chronic high humidity
- Poor sleep quality — humidity above 60% significantly disrupts sleep, a major concern for vacation rental guest satisfaction
Why Portable Dehumidifiers Don't Cut It
Portable standalone dehumidifiers have real limitations for whole-home humidity control:
- They only treat the room they're in — humidity from the rest of the home constantly infiltrates
- They require constant emptying of the water tank (or a drain hose setup), creating ongoing maintenance
- They generate heat as a byproduct, which forces your AC to work harder
- They're noisy and occupy floor space
- Multiple units are needed for a multi-story home, multiplying cost and complexity
A whole-home dehumidifier integrates directly with your existing ductwork, automatically maintains your target humidity setpoint across the entire home, and drains continuously via a condensate line — no tanks to empty, no rooms left unprotected.
Products We Install
We install and service the leading whole-home dehumidifier brands, and will recommend the right capacity for your home size and usage pattern:
- Aprilaire 70 Series — the most popular whole-home dehumidifier line in Florida. Available in 70, 90, and 130-pint-per-day capacities. Digital control, automatic drainage, and Aprilaire's industry-leading build quality. Works with most central HVAC systems.
- Santa Fe Advance / Ultra Series — high-efficiency units with Energy Star ratings. Santa Fe is the brand of choice for higher-capacity applications — large homes, vacation rental properties, and homes with significant outdoor air infiltration. The Ultra Series handles up to 155 pints/day.
- Honeywell Home Dehumidifiers — reliable whole-home dehumidification that pairs well with Honeywell HVAC systems and smart thermostats for integrated humidity control.
Ideal Applications in the Lake Buena Vista Area
- Vacation rental properties near Disney Springs, Flamingo Crossings, and Celebration — protect the property and keep guests comfortable between bookings
- Homes with recurring mold issues — if you've had mold remediation, a dehumidifier is the essential prevention measure
- Newer, tightly-sealed homes — energy-efficient construction that's great for cooling can trap moisture inside
- Homes where the AC is undersized or replaced with a right-sized unit — properly sized AC systems cycle off before removing adequate humidity
- Homes with allergy or asthma sufferers — controlling humidity below 50% dramatically reduces dust mite populations
- Properties with crawl spaces — Florida slab construction is common, but homes with crawl spaces face elevated moisture infiltration from the ground
Pricing — Whole Home Dehumidifier Installation
Whole-home dehumidifier installation includes duct connection, condensate drain line routing, electrical connection, and control integration with your existing thermostat or a new standalone humidistat. We can also integrate with smart thermostats like Ecobee that support humidity control.