Best apps like HVAC Load Calc: Manual J

10+ similar apps compared and reviewed

4.2 avg rating
10 free apps
Updated September 2026

HVAC Load Calc is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to HVAC Load Calc

HVAC Load Calculator Manual J#1

HVAC Load Calculator Manual J by Mike Watson

BTU Sizing for Contractors
Editor's Choice
🔧 Utilities
4.8(37 ratings)
FreeIn-App Purchases
HVAC Load Calculator Manual J screenshot 1
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HVAC Load Calculator Manual J screenshot 6

This app provides professional HVAC load calculations for contractors, offering three levels of accuracy from quick estimates to detailed Manual J calculations. It's designed for field use with an intuitive interface, offline capabilities, and professional report generation.

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