Browse categories
Explore
Fiverr Pro
English
$
USD
I will do manual j d and s load calculations with duct design
HVAC Design Engineer
Experienced HVAC Design Engineer with over 13.5 years of expertise in delivering high-efficiency heating, ventilation, and air conditioning solutions. I specialize in load calculations, duct design, v...
About this Gig
Welcome to my profile. I'm Harun, I have 13+ Years Experience in HVAC Design & Project Implementation. And this is my 2026 updated Profile.
I will provide Residential Load Calculations, Equipment Selection, Measurement & Payment (M&P) Sheet, Specification and Duct Design Reports that are guaranteed to pass building department inspections nationwide. All calculations are completed using ASHRAE, Carrier Standard, Hourly Analysis Program (HAP), ASTM & ACCA-approved software to ensure your HVAC system is perfectly optimized, energy-efficient, and code-compliant.
What's Included in This Gig:
Manual J: Heating & cooling load calculations.
Manual S: Precise HVAC equipment selection based on your specific climate and load data.
Manual D: Complete duct design, layout, and sizing for balanced airflow.
Why Choose Me?
1,000+ Completed HVAC design projects across the country.
13+ Years of hands-on HVAC system design experience.
Trusted Nationwide by homeowners, HVAC contractors, builders, and architects.
Project scale:
Building
Building type:
Commercial
•
Office & workspace
•
Industrial
Delivery style preference
Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.
FAQ
What is your turnaround time, and do you accept rush orders?
My standard turnaround time varies depending on the size of the project (typically 2 to 5 days). If you are facing a tight deadline with the building department, please send me a message before ordering, and I will let you know my current availability for a rush delivery.
Can you help me pick a specific brand (like Carrier, Trane, or Goodman) for Manual S?
Absolutely. If you already have a preferred manufacturer or a specific equipment model in mind, just let me know! I will use their expanded performance data to verify that the equipment matches your Manual J loads.
Why can't I just use a standard rule of thumb (like 400 sq. ft. per ton) to size my HVAC?
"Rules of thumb" often lead to severely oversized or undersized equipment. An oversized system cycles on and off too quickly, causing high energy bills, poor humidity control, and premature equipment failure. A Manual J/S/D ensures your system is perfectly optimized for maximum comfort.
