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About AeroSize: HVAC Load Pro

AeroSize is a professional-grade HVAC engineering toolkit built for technicians, contractors, and designers — completely free with no subscriptions, no paywalls, and no feature restrictions.

Perform residential load calculations based on ACCA Manual J methodologies, size ductwork for optimal airflow, scan blueprints with on-device AI, and generate professional quotes — all from your phone.

LOAD CALCULATIONS • Room-by-room heating and cooling load analysis • Wall, window, door, and ceiling heat gain/loss factors • Climate zone and orientation adjustments • Equipment sizing recommendations based on calculated loads • Results aligned with ACCA Manual J residential standards

DUCT SIZING • Calculate duct dimensions for any CFM requirement • Round and rectangular duct equivalents • Friction rate and velocity calculations • Branch duct sizing with automatic balancing • Supply and return duct recommendations

AI BLUEPRINT SCANNER • Point your camera at a floor plan to detect rooms and dimensions • On-device AI processing — works offline in basements and attics • No cloud upload required — your blueprints stay on your device • Automatic room identification and square footage calculation

QUOTE GENERATOR • Generate professional Good/Better/Best equipment proposals • Customizable markup and pricing tiers • PDF export for client presentations • Save and reuse templates for common installations

BUILT FOR THE FIELD • Dark high-contrast UI — visible in crawlspaces and bright rooftops • Works 100% offline — no cell signal required • Instant calculations — no waiting for server responses • Designed for one-handed use while holding a flashlight • Battery-efficient dark theme for all-day use on site

WHY FREE? AeroSize is part of the HALOCORE app ecosystem. We believe professional HVAC tools shouldn't cost $50/month. Every feature is free, forever. Supported by optional non-intrusive ads.

Unlike measureQuick ($49/mo), Wrightsoft ($400/mo), or HeatWise ($49/mo), AeroSize gives you professional load calculations and duct sizing at zero cost. No trials, no locked features, no subscription traps.

Whether you're a solo technician doing residential installs, a contractor bidding jobs, or an engineering student learning load calculations — AeroSize is the tool you've been looking for.

Privacy: All calculations and blueprint scans happen on your device. Nothing is uploaded. See our full privacy policy at halocore.ai/privacy.