June 2025

Many Dallas homes have overlooked ductwork issues impacting AC performance, even new systems. At Greentech Engineering Heating & Air Conditioning, we see it often: suboptimal duct design is a major culprit.Why? In Dallas, for most residential homes, there isn’t a specific city requirement for every duct design to be performed by a licensed engineer or

🏠 Location: McKinney, TX 75070 🔧 Issue: Original 2003 R-22 5-ton system couldn’t cool; owner spent ≈ $800 / yr on repairs. 🔍 Diagnostic • Coil, condenser & furnace all end-of-life. • Return bottleneck: one 18″ duct (≈ 1,300 CFM) for a 5-ton unit that needs ≈ 2,000 CFM. No plenum → high static pressure,

If you’re thinking about replacing your AC system, you’ve probably come across the term SEER2. Here’s a quick breakdown for fellow DFW homeowners: 🔍 What is SEER2?It stands for Seasonal Energy Efficiency Ratio – Version 2, introduced in 2023. Unlike older ratings, SEER2 reflects real-world conditions—like ductwork length and airflow resistance, which are common in

🏠 Location: Dallas, TX 75216🔧 Issue: AC not cooling. System empty of refrigerant.Diagnostic:– 2017 condenser charged with R-410A.– 1999 evaporator coil & furnace still rated for R-22.– Leak confirmed in the old R-22 coil; mixed refrigerants contaminated oil throughout the system.🛠️ Solution• Full Upgrade: Removed condenser, coil, and furnace; installed a fully matched Goodman R-32

   🏠 Location: Carrollton, TX 75010 🔧 Issue: 2009 R-22 downstairs system couldn’t beat summer heat. Vents roared like wind tunnels, and the unit seemed to run forever. 🔍 Diagnostic Supply Side: Only 3 main supply trunks (≈ 635 CFM) feeding a 3-ton system that needs ≈ 1200 CFM. Return Side: Single 16″ return (≈

Project Location: Frisco, TX 75034Service Type: Full HVAC Replacement for Residential Rental Property 🔧 The ChallengeA rental home in Frisco was experiencing repeated A/C failures every summer. The aging HVAC unit couldn’t keep up with demand, leading to frequent repair bills and ongoing tenant dissatisfaction. Concerned about rising costs and tenant turnover, the property owner

🏠 Location: Southlake, TX 76092 🔧 Issue: AC not cooling; system empty of refrigerant Our homeowner felt warm air throughout the house. Gauges showed zero pressure—total refrigerant loss. Instead of guessing which part leaked and billing thousands, Greentech launched a systematic, money-saving investigation: Standard Leak Detection: 1️⃣ Added trace refrigerant + dry nitrogen, pressurized to