Simple plan for precise HVAC load calculations
Get accurate Manual J results in minutes. Toggle monthly or yearly billing, upgrade when you need branded PDF reports, blower door ACH50 inputs, multi-system splits, and custom design conditions.
- Branded PDF exports and share links
- Blower door ACH50 inputs and notes
- Multi-system splits and custom design temps
Fetching live pricing…
Designed for real-world HVAC workflows
Load Calc Guru helps HVAC contractors, builders, and energy pros produce credible Manual J results without spreadsheets. The plan covers room-by-room BTU/hr with sensible and latent splits, and Pro features like exportable branded PDFs for permit submittals, blower door ACH50 inputs, multi-system splits, and custom design temperatures so your load report matches design day conditions.
Use our web app on mobile or desktop. Share read-only links with clients or inspectors, compare design options, and keep an audit trail of assumptions for every project. When Manual S and Manual D ship, carry the same data forward to equipment selection and duct design.
- Fast five-minute workflow
- Room-by-room sensible/latent BTU
- Mobile and desktop access
- Reliable design day methodology
What's included
Limits and capabilities may vary by workspace. Values update in real time when your API responds.
| Feature | Pro |
|---|---|
| Projects | Unlimited |
| Export PDF | Yes |
| Custom design temps | Yes |
| Price (monthly) | $29.00 |
| Price (yearly) | $290.00 |
Start sizing HVAC systems the right way
Toggle monthly or yearly billing. Upgrade to unlock branded PDFs, blower door inputs, multi-system splits, and custom design temps.