Benefits of using a Licensed Engineer for your Load Calculations and Duct Designs for New Homes
- Better Quality – By using Licensed Engineers, you can be assured the HVAC system designed for the home will perform as expected and fully meet state requirements
- Fewer Call Backs – Properly sized systems ensure customer comfort and reduce the need for call backs for too-hot or too-cold conditions indoors
- Better Pricing – The HVAC system design can be used to quote installations with multiple contractors
- Quicker Installs – HVAC contractors no longer need to design duct runs and select equipment, leading to more streamlined installations
- No Liability – Liability for system design falls on the Engineer, freeing the Builder from liability for potential damages caused by incorrectly sized equipment or improper duct designs
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It’s Required by Law
North Carolina State Mechanical Code requires all NEW homes have a Manual J, S & D performed before any Heating & Cooling System is installed. Is your HVAC contractor using ACCA Manual J, S & D or other APPROVED Calculation Methodologies? Ensure compliance by using a Licensed Engineer for your Load Calculations and Duct Designs.
Engineers Licensed in Virginia, North Carolina, and South Carolina, specializing in HVAC Systems for Residential and Small Business Applications.

