Florida HVAC Research Library

Every Answer to Every
Florida HVAC Question

27 years of Florida HVAC knowledge — humidity, mold, sizing, efficiency, brands, history, and everything in between. Written for homeowners, not engineers.

27
Years Experience
15
Articles & Tools
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Paywalls
Humidity

Why Your House Feels Sticky at 75°

Your thermostat measures temperature, not water. Here's what your real number is and why Florida homes feel awful at a perfectly good temperature.

Humidity

Why Are Your Vent Covers Sweating?

Condensation dripping from your supply registers is a humidity problem, not a refrigerant problem. Here's what causes it and how to fix it.

Buying

What a Cheap HVAC Install Actually Looks Like

The 11 corners that get cut on a low-bid Florida installation — and what each costs over 10 years.

Maintenance

Duct Cleaning, Sanitization & Preventive Maintenance

Florida systems are contaminated from day one. Drywall dust, construction debris, and mold spores are built in before the first cooling cycle.

Maintenance

AC Troubleshooting Guide

Check these things before you call. A step-by-step guide to diagnosing the most common AC problems in Florida homes.

IAQ

Indoor Air Quality & Filtration

MERV ratings, UV lights, ionizers — what actually improves your Florida home's air and what's just marketing.

Buying

HVAC Brand Comparison — Florida Scorecard

8 major brands rated across 10 criteria relevant to Florida. Reliability, corrosion resistance, warranty, humidity performance and more.

Buying

The Ten-Year Ledger — What a New AC Really Costs

A 3-ton replacement in Pinellas County costs about $11,000 to install and $17,500 to own over ten years. Here's every line of it.

Calculator

Dehumidification Calculator

See your home's actual moisture load by season — and whether your system is handling it or not.

Calculator

Duct Size Checker

Is your return or supply duct large enough for your system? Enter your numbers and find out.

Calculator

Latent Heat Calculator

Sensible vs. latent capacity per ton, moisture removal in pints per day, coil temperature drop. Built for Florida.

Technical

Florida Psychrometrics

The science of air properties in Florida's climate — dew point, wet bulb, enthalpy, and what they mean for your system.

FAQ

HVAC FAQ — 15 Questions Answered

Humidity, freezing coils, water dripping, strange noises, repair vs. replace, heat pumps, smart thermostats. Straight answers.

History

History of Air Conditioning

From pond ice and horse wagons to Willis Carrier's 1902 accident — the story of how AC made Florida possible.

Reference

HVAC Glossary — Terms Nobody Explains

What is a TXV? What does SEER2 mean? Why does the invoice say "metering device"? Every term explained in plain English.

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Heat Pumps in Florida

Why Florida is the perfect climate — and the cold-weather myths debunked

Salt Air & Coastal Corrosion

What living in Pinellas County does to your outdoor unit over time

Formicary Corrosion

The organic acid reaction that eats copper coils — and how to prevent it

Hurricane Prep for HVAC

Before, during, and after — protecting your system and knowing when to run it

New Construction Checklist

What to demand from your builder before you close

Repair vs. Replace

A real decision framework — not a sales pitch

SEER & Your Electric Bill

What efficiency ratings actually mean in dollars per year

Smart Thermostats & Zoning

What's worth it in Florida and what isn't

Snowbird Guide

What happens to a Florida home closed for 5 months — and how to protect it

Variable Speed Systems

Why they matter more in Florida than anywhere else

Refrigerant Transitions

R-22 → R-410A → R-454B — what Florida homeowners need to know

Manual J Load Calculations

Why Florida sizing is different — and why most contractors get it wrong

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