Mirsab M.

Residential HVAC Design Specialist | Manual J, D & S Expert

With 7 years of total experience in HVAC and over 5 years focused exclusively on U.S. Residential HVAC Design; I’ve supported architects, builders, and contractors in creating systems that are code-compliant, energy-efficient, and built for real-world performance. With a deep understanding of ACCA protocols and extensive hands-on experience across U.S. climate zones, I design systems that just work - no guesswork, no oversizing, no shortcuts. 🧭 What I’ve Come to Specialize In Every home is unique and I design HVAC systems that reflect that. ✅ Manual J Load Calculations (climate-adjusted, altitude-corrected) ✅ Manual D Duct Design (zoned, static pressure balanced, ACCA-compliant) ✅ Manual S Equipment Selection (matched to actual design loads—not thumb rules) ✅ Complete HVAC Design Packages (perfect for permits, energy code submittals, and contractor coordination) ✅ Specialized Designs for ERV/HRV, whole-home dehumidifiers, and ventilation systems 🔍 What Sets My Work Apart My designs have served a wide range of climate zones-- from cooling-dominant Arizona to heating-heavy Montana and Wyoming, and even moderate climates like North Carolina and Tennessee. Clients choose to work with me because: 🔹 I focus only on U.S. residential HVAC protocols 🔹 I use Wrightsoft - the industry’s best ACCA-authorized software for Manual J, D, and S 🔹 I deliver 100% ACCA & IECC-compliant designs 🔹 I offer fast turnaround, clear communication, and attention to detail 🔹 I’ve received glowing testimonials from clients across the U.S. for my accuracy, professionalism, and reliability 📁 The Kind of Projects I Handle Here are a few ways I’ve helped clients: ✔️ HVAC designs for high-performance homes in CA, TX, and MT ✔️ Multi-zone duct layouts for large custom homes ✔️ Heat pump sizing and duct optimization for energy-conscious upgrades ✔️ HVAC designs tailored for Florida energy code compliance—including Form R405 submissions ✔️ Energy Star HVAC Design Reports for certified homes (sample available) ✔️ HVAC systems designed for single-family homes across nearly every U.S. state 🧰 The Tools I Rely On ▶️ Wrightsoft Right-Suite Universal (for Manual J, D, and S) ▶️ AutoCAD (for duct layout and markups) ▶️ OEM Data Interpolation (for accurate equipment selection) ▶️ Mitsubishi Diamond System Builder ▶️ REScheck (Web and Desktop) 🤝 Let’s Create Something That Lasts Whether you're a builder, contractor, or homeowner looking for precise HVAC design that’s ready for permits and performs flawlessly; I’m here to help. 📩 Just send me your project details, and let’s design a system that delivers comfort, compliance, and confidence.