How to Choose the Right HVAC System in DFW
By Omar Jacobo | EPA 608 #2396328 | April 2026
Why does proper HVAC sizing matter so much in DFW?
Proper sizing is the single most important factor in choosing an HVAC system. An oversized system cools too fast, short-cycles, fails to remove humidity, and wears out faster. An undersized system runs constantly and can't keep up on 105°F Texas days. In my 10 years of HVAC work across Farmers Branch, Coppell, Irving, Flower Mound, Lewisville, Grapevine, oversizing is the mistake I see most often.
A proper Manual J load calculation considers your home's square footage, insulation, window count and orientation, ceiling height, ductwork condition, and local climate data. Any contractor who sizes your system based solely on square footage is cutting corners. At Frosty's HVAC, we do a full load calculation on every installation.
What HVAC brands does Omar Jacobo recommend?
I've installed and serviced every major brand over my career. The three I recommend most for DFW homes are:
Carrier
Premium reliability and excellent warranty support. Higher upfront cost but lower long-term maintenance. Best for homeowners who want a set-it-and-forget-it system.
Goodman
Best value in the market. Solid performance at a lower price point. Great option for budget-conscious homeowners who still want quality.
Trane
Known for durability and handling extreme heat. Popular in Texas for good reason — these units are built to last through brutal summers.
What efficiency rating should I look for?
The new SEER2 rating system replaced the original SEER ratings in 2023. For DFW, I recommend a minimum of 15 SEER2 for good efficiency. Higher ratings (17-20+ SEER2) cost more upfront but save significantly on energy bills, especially during our 4-5 month cooling season. Consider a heat pump if you want year-round efficiency.
What questions should I ask my HVAC contractor?
Before signing any contract, ask these questions:
- Did you perform a Manual J load calculation?
- What is your HVAC contractor license number? (Ours is TACLA126718E)
- Will you evaluate my existing ductwork?
- What warranty comes with the equipment and labor?
- What refrigerant does this system use? (Should be R-454B for new installs)
- Do you offer financing options?
Ready for a free estimate?
Call (469) 254-0548 for an honest assessment and no-pressure quote.