Permit-ready HVAC load reports, inspector compliance, and faster job turnarounds
Start with a 7-day Pro trial to get branded permit-ready PDFs, inspector-friendly Manual S checks, and equipment sizing that avoids rework. Save hours on every job with workflows built for contractor speed and permit submittals.
- Branded permit-ready PDF exports
- Manual S equipment verification for inspector compliance
- Blower door ACH50 inputs and duct loss detail
- Custom design temperatures and code-ready checks
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- Avoid rework by locking in permit-ready assumptions and compliant equipment sizing.
- Save hours per job with faster load calculations and fewer follow-up delays.
- Support permit submittals with branded PDFs and inspector-ready outputs.
Designed for real-world HVAC workflows
Load Calc Guru helps HVAC contractors, builders, and energy pros produce credible Manual J results without spreadsheets. Start a 7-day Pro trial for branded permit-ready PDFs, inspector-backed Manual S verification, blower door ACH50 inputs, duct loss detail, and custom design temperatures so your load report matches code-ready design day conditions.
Use our web app on mobile or desktop. Share read-only links with clients and inspectors, compare design options, and keep an audit trail of assumptions for every project. When Manual D ships, carry the same data forward to duct design.
- Fast five-minute permit-ready workflow
- Room-by-room sensible/latent BTU
- Mobile and desktop access
- Reliable design day methodology
Save ~17% yearly on Pro
| Feature | Pro |
|---|---|
| Projects | Unlimited |
| Permit-ready PDF export | Yes |
| Custom design temperatures | Yes |
| Manual S checks | Yes |
| Price (monthly) | $26.99 |
| Price (yearly) | $269.99 |
Start sizing HVAC systems the right way
Start your 7-day Pro trial and unlock branded permit-ready PDFs, inspector-ready exports, blower door inputs, duct losses, custom design temperatures, and Manual S equipment verification.