HVAC BLOG · GULF COAST EDITION
The Keith's Blog.
Real HVAC advice from techs who work Coast homes every day. No fluff, no upsells, no AI-written spam.
Cost Guides · 4 min
AC Repair Cost in Mississippi: What You Actually Pay in 2026
Straight numbers on what MS Gulf Coast AC repair really costs, from capacitor swaps to compressor replacements. No 'call for quote' games.
Read the post →Cost Guides · 3 min
10 Signs You Need a New AC Unit (Not Just Another Repair)
When to stop repairing and start replacing. The 40% rule, the 10-year rule, and how honest HVAC techs actually decide.
Read the post →Buying Guides · 3 min
SEER2 Ratings Explained: What The Numbers Actually Mean for Your Bill
SEER2 replaced SEER in 2023. Here's what that means for your Coast home, your electric bill, and your rebate eligibility.
Read the post →Coast Living · 3 min
Hurricane Prep for Your HVAC: A Gulf Coast Homeowner's Checklist
Before the storm, during landfall, and after the winds die. Protect your equipment and get your house cool again fast.
Read the post →Coast Living · 3 min
Why Gulf Coast Humidity Destroys HVAC Systems (And How To Fight Back)
The Coast averages 75-80% relative humidity. Your HVAC is fighting a war your inland cousin's system will never see. Here's how to help it win.
Read the post →Maintenance · 2 min
How Often You Actually Need to Change Your HVAC Filter on the Coast
The 90-day rule doesn't apply to Coast homes. Here's the real filter schedule based on Gulf humidity, pets, and pollen.
Read the post →Coast Living · 2 min
Salt Air Is Eating Your Outdoor AC Unit. Here's How to Stop It.
Coastal salt exposure kills condenser coils in 8-10 years. Learn what coatings work, what maintenance matters, and when to just swap the unit.
Read the post →Buying Guides · 3 min
R-22, R-410A, R-454B: The Freon Phase-Out Explained for Coast Homeowners
Your old system runs R-22. Your new one runs R-454B. Here's what changed, what it costs, and why your recharge quote just doubled.
Read the post →Buying Guides · 3 min
Heat Pump vs Furnace on the Coast: Which One Wins?
Mild winters, high summer humidity, cheap electric, no natural gas on some blocks. Here's how the math works out in Mississippi.
Read the post →Maintenance · 3 min
Is Duct Cleaning Worth It? An HVAC Contractor's Honest Answer
The industry has bad actors. Here's when duct cleaning actually helps, when it's a waste of money, and how to tell the difference.
Read the post →Buying Guides · 3 min
What Is a Manual-J Load Calculation? (And Why It Matters More Than Square Feet)
Bad HVAC sizing costs comfort AND money. Here's the ACCA-standard method every honest installer uses to size your system.
Read the post →Troubleshooting · 3 min
AC Not Cooling? Try These 6 Things Before Calling a Tech
Sometimes it's a $0 fix. Six checks any Coast homeowner can do in 10 minutes before dropping money on a service call.
Read the post →Buying Guides · 3 min
Smart Thermostat on the Coast: Worth It or Marketing Hype?
Nest, Ecobee, Honeywell, EcoNet. Do they save money in a climate that runs AC 8 months a year? The real answer.
Read the post →Cost Guides · 3 min
HVAC Financing Explained: What 0% APR Actually Costs You
0% deferred interest, low APR, HELOC, credit card. Here's the real cost breakdown for a Coast homeowner replacing a $9,000 system.
Read the post →Buying Guides · 3 min
Mini Split vs Central Air: Which One Fits Your Coast Home?
Ductless mini splits are exploding in popularity. Here's when they beat central AC and when they don't for Mississippi homes.
Read the post →Maintenance · 3 min
Spring HVAC Tune-Up: What Techs Actually Check (And Why It Matters)
Anyone can 'check the coils.' Here's the real 22-point checklist a Keith's tech runs on your spring tune-up and why each step matters.
Read the post →Buying Guides · 3 min
HVAC Warranty: What's Actually Covered (And What Isn't)
Parts warranty vs labor warranty vs extended warranty vs manufacturer warranty. The full breakdown so you don't get surprised.
Read the post →Troubleshooting · 3 min
Why Your AC Is Freezing Up (And Why It'll Cost More The Longer You Wait)
Ice on your outdoor unit or refrigerant line isn't a mystery. Four causes, one fast fix, and why running it iced destroys the compressor.
Read the post →Commercial · 2 min
Commercial HVAC Maintenance Plans: Why Every Coast Business Needs One
Downtime costs revenue. Here's why quarterly PM contracts pay for themselves and what to look for in a commercial HVAC service.
Read the post →Air Quality · 3 min
Indoor Air Quality in Mississippi: The Complete Homeowner's Guide
Mold, humidity, pollen, dust, VOCs. What Coast air quality actually looks like and the equipment that fixes each problem.
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