Get accurate, permit-ready HVAC load calculations in 60 seconds. Just upload your blueprint—our AI does the rest.
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Simple "BTU per square foot" calculators ignore the factors that actually determine your load. Here's what they miss—and why it matters.
⚠️ Wrong-sized equipment = callbacks, comfort complaints, and unhappy customers
HVAC contractors lose thousands of dollars per year on callbacks from improperly sized systems
Proper Manual J sizing eliminates these problems before they start
Get Accurate Sizing FreeThree steps. 60 seconds. Permit-ready results.
Upload any blueprint PDF. Floor plans, elevation drawings, energy specs—our AI reads them all.
Our AI extracts dimensions, R-values, windows, and construction details. Full Manual J methodology.
Download a complete, permit-ready Manual J report with room-by-room loads and equipment sizing.
Precise BTU/hr requirements for both heating and cooling based on your climate zone.
Individual load calculations for each room with CFM requirements for duct design.
Professional documentation that meets building department requirements.
Furnace and AC tonnage recommendations based on calculated loads.
Stop guessing. Stop using outdated rules of thumb. Upload your blueprint and get accurate, permit-ready load calculations—first one's free.
Upload Blueprint & Get Free ReportNo credit card required • No software to install • Results in 60 seconds