# HeatFlow Pro max

> HeatFlow Pro max (iPhone/iPad app by Guanghe Xu (tianjin) Digital Technology Co., Ltd.)

- Source: https://appshunter.io/ios/app/heatflow-pro-max/id6763896840 (this page in markdown: same URL + `.md`)
- Developer: [Guanghe Xu (tianjin) Digital Technology Co., Ltd](https://appshunter.io/developer/1895336115)
- Category: Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-04-28
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/heatflow-pro-max/id6763896840/reviews.md

## What is HeatFlow Pro max?

HeatFlow Pro is a professional HVAC engineering calculator for heating, ventilation, and air conditioning professionals. Calculate heat loads, duct sizing, R-values, and psychrometric properties.

Key Features:
• Heat Load – BTU/hr and tonnage calculations for spaces
• Duct Sizing – Round and rectangular duct calculations with velocity
• R-Value – Building insulation thermal resistance analysis
• Psychrometrics – Moist air properties, enthalpy, and humidity calculations

Essential HVAC tools for engineers and contractors.


## Version history (last 2 releases)

### 1.0.1 — 2026-05-01

Updated the app icon with a clearer professional design. App functionality remains unchanged.

### 1.0 — 2026-04-28

No release notes.

## More apps by Guanghe Xu (tianjin) Digital Technology Co., Ltd

- [WeldSpec Pro](https://appshunter.io/ios/app/weldspec-pro/id6763484882)
- [HydraCalc Pro](https://appshunter.io/ios/app/hydracalc-pro/id6763485334)
- [GearDrive Pro](https://appshunter.io/ios/app/geardrive-pro/id6763485586)
- [AgriFlow Pro](https://appshunter.io/ios/app/agriflow-pro/id6763485593)
- [VentCalc Pro](https://appshunter.io/ios/app/ventcalc-pro/id6763485742)
- [RopeRig Pro](https://appshunter.io/ios/app/roperig-pro/id6763485855)

All apps by Guanghe Xu (tianjin) Digital Technology Co., Ltd: https://appshunter.io/developer/1895336115

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*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.*