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903 HVAC Blog: East Texas Heating & Cooling Tips
Straight answers to the heating and cooling questions East Texas homeowners ask most. Our team has spent over 40 years working on systems across Tyler, Lindale, and the surrounding 903 area, and these guides share what we have learned about keeping a home comfortable through hot, humid summers and the occasional hard freeze. When you are ready for hands-on help, call 903 HVAC at 903-393-1044.
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Latest Articles
Heating & Cooling Guides for Tyler, TX Homeowners
Rebates and Refrigerant
AC and Heat Pump Rebates in Tyler, TX: What Is Real in 2026
Which incentive is live for Tyler homeowners this year, which federal credit ended, where the Texas rebates stand, and what R-454B and SEER2 mean for your next system.
Read MoreSizing
What Size Mini-Split Do I Need? A Sizing Guide for East Texas Homes
BTUs by room size, the East Texas adjustments that change the number, single-zone vs. multi-zone, and when a ductless system is the wrong tool for the job.
Read MoreAC Troubleshooting
Why Is My AC Not Cooling? Common Causes and Fixes
Your AC runs but the air is not cold. Here are seven common reasons an air conditioner stops cooling, what you can check yourself, and when it is time to call a Tyler-area pro.
Read MoreCost Guides
How Much Does AC Installation Cost in Texas?
A plain-English price guide that breaks down what drives the cost of a new air conditioner in East Texas, from unit size and SEER2 rating to ductwork condition.
Read MoreMini-Splits
Mini-Split vs. Central Air: How to Choose
Ductless mini-split or central air? Compare cost, efficiency, ductwork, and zoning side by side to find the right fit for your East Texas home.
Read MoreHeating Troubleshooting
Furnace Not Heating? Common Causes and How to Fix Them
When a cold snap hits and the furnace runs without producing heat, walk through these troubleshooting steps before calling for service in Tyler.
Read MoreSizing
What Size Air Conditioner Do I Need?
A square-footage-to-tonnage guide for East Texas, plus why a Manual J load calculation beats a rule of thumb when you size a new system.
Read MoreCost Guides
How Much Does a Mini-Split Cost?
See how ductless mini-split pricing changes with the number of zones, BTU capacity, and install complexity, plus what financing looks like in Tyler.
Read MoreNeed a Hand?
Have a Heating or Cooling Question We Have Not Answered?
Reading about a problem only gets you so far. If your system needs eyes on it, the 903 HVAC team serves Tyler and the surrounding East Texas communities with honest, same-day service during business hours.
