One of the original Manual J firms nationwide since 2008.
Heat Load USA is an ACCA Certified HVAC design firm. We were one of the first to offer Manual J, D, S and N reports online, and we've been delivering permit-ready PDFs to contractors, builders and homeowners ever since.
Engineering accuracy. Contractor speed.
We've been preparing ACCA-compliant Manual J, D, S and N reports since 2008 one of the original firms to offer this service nationwide. That's nearly two decades of plan reviews, code changes and inspector feedback baked into every PDF we deliver.
Every report is reviewed, stamped, and delivered as a clean permit-ready PDF built around the realities of the field: tight deadlines, revisions, and inspectors who need the math to add up.
Since 2008
Nationwide
Next-Day Service
1000s of Projects
BUILT FOR THE TRADE
Heat Load USA was created to serve HVAC contractors, architects and engineers all over the USA.
We are certified HVAC designers with a combined 50+ years of HVAC industry design and install experience. Every report we produce is built on what actually works in the field not just what passes plan review.
ACCA Manual D
HVAC Load Calculation
Manual S Equipment Selection
ACCA Manual J Calculation
Manual D Duct Design
Manual N Commercial Loads
AWARDS & RECOGNITION
Recognized year after year.
ENERGY STAR EPA Century Award Winner
2012, 2013, 2014, 2015, 2016 & 2019
We're blushing. For five years in a row, we were awarded the EPA Century Award from ENERGY STAR.
BBB A+ Rating
Maintained for years
For many years now, we have maintained an A+ rating on the BBB. We strive to provide excellent customer service all around.
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