# HVAC Calculator Load Pro — Built for HVAC Specialists > Field-ready HVAC calculator for accurate residential system sizing. (iPhone/iPad app by Ryan Perchak.) - Source: https://appshunter.io/ios/app/hvac-calculator-load-pro/id6752215766 (this page in markdown: same URL + `.md`) - Developer: [Ryan Perchak](https://appshunter.io/developer/1838269532) - Category: Productivity, Utilities - Price: Free with in-app purchases (on sale, was $12.99) - Rating: 4.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.6 · 11 MB - Languages: English - Released: 2025-09-22 - Data updated: 2026-06-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/hvac-calculator-load-pro/id6752215766/reviews.md ## What is HVAC Calculator Load Pro? Trusted by Home Service Professionals. HVAC Calculator Load Pro is a fast, accurate, and field-ready HVAC calculator designed for professionals who need confidence, clarity, and speed when sizing residential HVAC systems. Size furnaces, air conditioners, and natural gas equipment correctly - without spreadsheets, guesswork, or rule-of-thumb estimates. Unlike generic Manual J calculators, HVAC Calculator Load Pro is built specifically for real-world residential sales and service. With climate-aware calculations, wind factor considerations, and clear client-ready results, you can: • Build trust faster • Explain recommendations with confidence • Win more bids • Avoid costly sizing mistakes If you’ve ever struggled with traditional HVAC calculations, this app was built for you. Whether you’re: • Replacing a furnace • Adding air conditioning • Decoding a hot water tank • Sizing new natural gas appliances HVAC Calculator Load Pro helps you size equipment correctly in half the time - right from your phone or iPad. Ideal For: • HVAC technicians • HVAC sales professionals • Comfort advisors • Home service contractors • Residential retrofit specialists Key Benefits: • Fast, field-ready HVAC BTU calculations • Residential furnace & air conditioner sizing • Climate-aware calculations for accurate results • Reduces under-sizing and over-sizing errors • Helps explain system recommendations to homeowners • Saves time on every estimate and service call • Designed for sales techs, comfort advisors, and installers Stop relying on rough estimates or overly complex software. HVAC Calculator BTU Load Pro delivers professional-grade HVAC calculations in a simple, intuitive mobile app - so you can focus on serving customers, closing deals, and growing revenue. Download now and size HVAC systems with confidence. ## Key features - Fast HVAC BTU calculations - Residential furnace & AC sizing - Climate-aware calculations - Reduces sizing errors - Client-ready results - Saves time on estimates ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | HVAC Load Pro - Weekly | $3.99 | per 7 days | | HVAC Calculator Load Pro | $12.99 | per month | | HVAC Load Pro - Yearly | $99.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | HVAC Load Pro Monthly Subscription | $12.99 | one-time | ## Frequently asked questions about HVAC Calculator Load Pro ### What is HVAC Calculator Load Pro used for? HVAC Calculator Load Pro is designed for HVAC professionals to quickly and accurately calculate the load for residential heating and cooling systems. It helps in sizing furnaces, air conditioners, and natural gas equipment, replacing manual calculations and spreadsheets. ### Who is the target audience for HVAC Calculator Load Pro? The app is ideal for HVAC technicians, sales professionals, comfort advisors, home service contractors, and residential retrofit specialists. It aims to provide them with a reliable tool for field use. ### How does HVAC Calculator Load Pro ensure accuracy? It offers climate-aware calculations and considers factors like wind to provide precise sizing recommendations. This helps in avoiding common errors like under-sizing or over-sizing equipment. ### What are the subscription options for HVAC Calculator Load Pro? The app offers several subscription plans: a weekly plan for $3.99, a monthly plan for $12.99 with a 3-day free trial, and a yearly plan for $99.99. These plans provide access to the full features of the pro version. ### Can HVAC Calculator Load Pro be used offline? The provided data does not specify offline functionality. However, its design for field use suggests it may be optimized for situations with limited connectivity, though a stable internet connection is often required for cloud-based calculations. ### How does HVAC Calculator Load Pro compare to generic Manual J calculators? Unlike generic Manual J calculators, HVAC Calculator Load Pro is specifically built for real-world residential sales and service scenarios. It focuses on providing clear, client-ready results and is designed for speed and ease of use in the field. ### What devices are supported by HVAC Calculator Load Pro? HVAC Calculator Load Pro is available on iPhone and iPad devices. It is designed to be used directly on these mobile platforms for convenience. ### How often is HVAC Calculator Load Pro updated? The latest version of HVAC Calculator Load Pro is 1.3.2, last updated on May 25, 2026. This indicates a commitment to regular updates and improvements for the application. ## Version history (last 5 releases) ### 1.3.2 — 2026-05-25 • Enhanced HVAC Calculator accuracy and flow for better BTU load calculations • Improvements to mobile phone workflow • Updated AC sizing and furnace sizing calculations • Improved HVAC load calculation performance • Optimized Manual J style load calculator logic • Stability improvements for reliable HVAC sizing results HVAC Load Pro continues to deliver fast, accurate HVAC load calculations, BTU sizing, AC sizing, furnace sizing, and Manual J style calculations for HVAC professionals. ### 1.3.1 — 2026-05-13 • Enhanced HVAC Calculator accuracy and flow for better BTU load calculations • Improvements to mobile phone workflow • Updated AC sizing and furnace sizing calculations • Improved HVAC load calculation performance • Optimized Manual J style load calculator logic • Stability improvements for reliable HVAC sizing results HVAC Load Pro continues to deliver fast, accurate HVAC load calculations, BTU sizing, AC sizing, furnace sizing, and Manual J style calculations for HVAC professionals. ### 1.2.4 — 2026-03-20 • Enhanced HVAC Calculator accuracy for better BTU load calculations • Improvements to Pro & Classic HVAC Calculator modes for faster calculations • Updated AC sizing and furnace sizing calculations • Improved HVAC load calculation performance • Optimized Manual J style load calculator logic • Stability improvements for reliable HVAC sizing results HVAC Load Pro continues to deliver fast, accurate HVAC load calculations, BTU sizing, AC sizing, furnace sizing, and Manual J style calculations for HVAC professionals. ### 1.2.3 — 2026-03-18 • Enhanced HVAC Calculator accuracy for better BTU load calculations • Improvements to Pro & Classic HVAC Calculator modes for faster calculations • Updated AC sizing and furnace sizing calculations • Improved HVAC load calculation performance • Optimized Manual J style load calculator logic • Stability improvements for reliable HVAC sizing results HVAC Load Pro continues to deliver fast, accurate HVAC load calculations, BTU sizing, AC sizing, furnace sizing, and Manual J style calculations for HVAC professionals. ### 1.2.2 — 2026-03-13 • Enhanced HVAC Calculator accuracy for better BTU load calculations • Improvements to Pro & Classic HVAC Calculator modes for faster calculations • Updated AC sizing and furnace sizing calculations • Improved HVAC load calculation performance • Optimized Manual J style load calculator logic • Stability improvements for reliable HVAC sizing results HVAC Load Pro continues to deliver fast, accurate HVAC load calculations, BTU sizing, AC sizing, furnace sizing, and Manual J style calculations for HVAC professionals. ## Apps similar to HVAC Calculator Load Pro | App | Rating | Price | Category | | --- | --- | --- | --- | | [Fill & Sign: PDF Filler Editor](https://appshunter.io/ios/app/fill-and-sign-pdf-filler-editor/id6450647303) | 4.8 (29) | Free | Productivity | | [Peirce Phelps HVAC Pro+](https://appshunter.io/ios/app/peirce-phelps-hvac-pro-plus/id1491350039) | 4.7 (50) | Free | Productivity | | [WeekCal for iPad](https://appshunter.io/ios/app/weekcal-for-ipad/id434143491) | 4.1 (426) | Free | Productivity | | [Fire Shift Calendar](https://appshunter.io/ios/app/fire-shift-calendar/id1559443433) | 4.8 (16) | Free | Productivity | | [Stopwatch plus Multiple Timer](https://appshunter.io/ios/app/stopwatch-plus-multiple-timer/id923834737) | 4.6 (181) | Free | Productivity | | [Family Schedule Planner App](https://appshunter.io/ios/app/family-schedule-planner-app/id6468680257) | 4.8 (4) | Free | Productivity | ## More apps by Ryan Perchak - [HVAC Calculator Load Lite](https://appshunter.io/ios/app/hvac-calculator-load-lite/id6757761026) All apps by Ryan Perchak: https://appshunter.io/developer/1838269532 ## Related topics [hvac load](https://appshunter.io/ios/topics/hvac-load) · [hvac calculator load pro](https://appshunter.io/ios/topics/hvac-calculator-load-pro) · [manual j](https://appshunter.io/ios/topics/manual-j) · [hvac load calculator](https://appshunter.io/ios/topics/hvac-load-calculator) · [hvac load plus](https://appshunter.io/ios/topics/hvac-load-plus) · [hvac calculator load lite](https://appshunter.io/ios/topics/hvac-calculator-load-lite) · [hvac calculator](https://appshunter.io/ios/topics/hvac-calculator) · [hvac load calculator manual j](https://appshunter.io/ios/topics/hvac-load-calculator-manual-j) · [hvac pro calculator](https://appshunter.io/ios/topics/hvac-pro-calculator) · [HVAC calculator](https://appshunter.io/ios/topics/hvac-calculator) · [blue cold heat load calculator](https://appshunter.io/ios/topics/blue-cold-heat-load-calculator) · [ats load calculator](https://appshunter.io/ios/topics/ats-load-calculator) · [hvac check charge](https://appshunter.io/ios/topics/hvac-check-charge) · [ratestrike pro](https://appshunter.io/ios/topics/ratestrike-pro) --- *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 2026-06-01.*