# HVAC Calculator Load Lite — Built for HVAC Specialists > Built for HVAC Specialists (iPhone/iPad app by Ryan Perchak.) - Source: https://appshunter.io/ios/app/hvac-calculator-load-lite/id6757761026 (this page in markdown: same URL + `.md`) - Developer: [Ryan Perchak](https://appshunter.io/developer/1838269532) - Category: Productivity, Utilities - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 5 MB - Languages: English - Released: 2026-01-15 - Data updated: 2026-05-17 - User reviews in markdown: https://appshunter.io/ios/app/hvac-calculator-load-lite/id6757761026/reviews.md ## What is HVAC Calculator Load Lite? The fast, simple, field-ready HVAC load calculator - built for Home Service Professionals. HVAC Calculator Load Lite gives technicians, comfort advisors, and sales professionals a quick and reliable way to size furnaces and air conditioners without spreadsheets, manual formulas, or slow, complicated software. Designed for speed, clarity, and accuracy, this Lite version keeps the essentials: • Clean, easy-to-use interface • Fast HVAC load estimates • Residential heating & cooling BTU calculations • Climate and temperature-aware results • Clear outputs you can share or reference on any job Perfect for quoting, service calls, replacement consultations, and quick load checks - right in the field. Who It’s For? • HVAC technicians & installers • Comfort advisors & sales reps • Home service contractors • Residential retrofit professionals • Anyone who needs fast HVAC sizing without complexity What You Can Do With HVAC Calculator Load Lite • Size furnaces and air conditioners quickly • Complete residential BTU calculations in minutes • Generate climate-aware load estimates • Reduce sizing mistakes caused by guesswork • Improve customer confidence during estimates • Speed up replacement consultations • Equip your team with a consistent sizing method Why Pros Use It Traditional Manual J software is slow, technical, and difficult to use on a jobsite. Rule-of-thumb estimates create mistakes, callbacks, and lost trust. HVAC Calculator Load Lite solves both problems. It delivers practical, real-world HVAC sizing you can use instantly - right from your phone or iPad. Ideal For • Quick load calculations during customer visits • Fast estimates before running full Manual J • Techs who want an easy sizing tool • Sales professionals who need speed & accuracy • Companies looking for consistent, repeatable sizing Key Benefits • Fast, field-tested HVAC BTU calculations • Simplified heating & cooling load estimates • Helps reduce under-sizing and over-sizing errors • Boosts homeowner confidence during sales calls • Less time doing math, more time serving customers • Intuitive design made specifically for mobile use HVAC Calculator Load Lite gives you the essential HVAC sizing tools you need - without the complexity - so you can quote faster, reduce mistakes, and deliver better customer service. Download now and size HVAC systems with clarity and confidence. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cozy-home-calc.lovable.app/privacy ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Weekly Access | $1.99 | per 7 days | | Yearly Access | $89.99 | per year | ## Version history (last 4 releases) ### 1.0.4 — 2026-04-06 • Improved HVAC load calculation accuracy for more reliable BTU results • Enhanced sizing logic for furnaces and air conditioners • Improved mobile workflow and input experience • Performance upgrades for faster calculations • General stability improvements and bug fixes HVAC Load Lite delivers fast, simple, and accurate HVAC load calculations, including BTU sizing, AC sizing, furnace sizing, and Manual J–style estimates - perfect for quick, reliable results in the field. ### 1.0.3 — 2026-02-09 This update improves performance, enhances HVAC load calculation accuracy, and makes the app faster and easier to use. We refined the BTU formulas, optimized furnace and AC sizing outputs, and improved the layout for quicker, clearer results. Thank you for using HVAC Calculator Load Lite. ### 1.0.2 — 2026-01-20 Enhanced HVAC Calculator - Mobile Users. HVAC Calculator Security improvement. Work Flow Optimization. ### 1.0 — 2026-01-15 No release notes. ## More apps by Ryan Perchak - [HVAC Calculator Load Pro](https://appshunter.io/ios/app/hvac-calculator-load-pro/id6752215766) All apps by Ryan Perchak: https://appshunter.io/developer/1838269532 ## Related topics [hvac calculator load lite](https://appshunter.io/ios/topics/hvac-calculator-load-lite) · [manual j](https://appshunter.io/ios/topics/manual-j) · [hvac load calculator manual j](https://appshunter.io/ios/topics/hvac-load-calculator-manual-j) · [hvac calculator heat](https://appshunter.io/ios/topics/hvac-calculator-heat) · [hvac load calculator](https://appshunter.io/ios/topics/hvac-load-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*