Load Calc Guru Blog

Why the Pro Plan is Worth It

Discover the features unlocked by Load Calc Guru's Pro plan, including full control over Manual J inputs, verified Manual S selection, and advanced reporting.

December 10, 2025

If you're still using the free version of Load Calc Guru, you’re only scratching the surface. The Pro plan unlocks critical tools that make your work faster, more accurate, and inspection-ready.

What You Get with Pro

  1. Custom Design Conditions
    Instead of relying on defaults, set your indoor temperatures, humidity, and even outdoor design temps. Every project reflects the exact conditions your client needs.

  2. Blower Door & Infiltration Overrides
    Enter measured CFM50 data for your projects to precisely calculate infiltration, rather than relying on tables. This reduces guesswork and ensures compliance.

  3. Duct Losses
    Accurately factor in ducts located in conditioned vs. unconditioned spaces. This affects equipment sizing and energy efficiency, preventing costly oversizing.

  4. Verified Manual S Equipment Selection
    Automatically check equipment performance against your calculated loads. The report flags oversizing, undersizing, or mismatched sensible/latent ratios.

  5. Branded, Detailed Reports
    Export PDF reports that feature your branding, project notes, and inspector-ready traceability.

ROI for Contractors

By upgrading to Pro, you save time, reduce callbacks, and deliver confidence to both clients and inspectors. Instead of double-checking calculations manually, the system handles it all. In many cases, one Pro project saves more time than the cost of the subscription for a month.

Summary

  • Unlock advanced customization and reporting.
  • Ensure compliance and inspection readiness.
  • Save hours of manual checking per project.

The Pro plan isn’t just an upgrade—it’s the professional standard for accurate load calculations and equipment selection.