# HVAC Spools

> HVAC duct weight calculation and estimation tool. (iPhone/iPad app by Rab Elias.)

- Source: https://appshunter.io/ios/app/hvac-spools/id921386269 (this page in markdown: same URL + `.md`)
- Developer: [Rab Elias](https://appshunter.io/developer/918944482)
- Category: Productivity, Education
- Price: $1.99
- Rating: 3.00/5 from 3 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 4 MB
- Languages: English
- Released: 2014-10-05
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/hvac-spools/id921386269/reviews.md

## What is HVAC Spools?

The easy and fast app to record, monitor and calculate and control the weights for HVAC ducts (Type: Rectangular, reducer and Elbow) during Estimation or Construction phase.

You are able to add as much as you want buildings or sections, then for each buildings you can add any type of ducts mentioned above. By providing the dimensions, it will calculate the weights with reference to the densities of galvanized sheet, flanges, angles and Stiffeners.

automatically will add stiffeners if required in according to the size of ducts.

For each section, the total weights, the total length for flanges and stiffeners, angles and the galvanized sheet area will be calculated.

## Key features

- Record and monitor HVAC duct weights
- Calculate weights for rectangular ducts, reducers, and elbows
- Reference material densities for accurate calculations
- Automatic stiffener addition
- Calculate total weights, lengths, and areas per section

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/hvac-spools/id921386269/reviews.md

### 3/5 — Measurement

*2024-11-28*

How do I change it from metric to us imperial to show inches and feet

### 5/5 — Useful

*2023-01-30*

I tried and results are accurate, I like it

### 1/5 — Do not purchase!

*2020-11-05*

Horrible interface, and inaccurate results

**Developer response:** Application is user friendly and results very accurate.
the issue with you.

## Frequently asked questions about HVAC Spools

### What types of HVAC ducts can HVAC Spools calculate weights for?

HVAC Spools can calculate weights for rectangular ducts, reducers, and elbows. The app uses provided dimensions and material densities to generate these calculations.

### Does HVAC Spools automatically add stiffeners?

Yes, HVAC Spools automatically adds stiffeners if they are required based on the size of the ducts. This feature helps ensure accurate material estimations.

### What information does HVAC Spools provide for each section?

For each section, HVAC Spools calculates the total weights, the total length for flanges and stiffeners, angles, and the galvanized sheet area. This provides a comprehensive overview of material usage.

### How does HVAC Spools calculate duct weights?

HVAC Spools calculates weights by referencing the densities of galvanized sheet, flanges, angles, and stiffeners. Users input duct dimensions for accurate results.

### What is the price of HVAC Spools?

HVAC Spools is a paid application priced at $1.99. This one-time purchase grants access to all its features for HVAC duct calculations.

### On which devices can HVAC Spools be used?

HVAC Spools is supported on iPhone, iPad, and iPod devices. It is designed for users within the Apple ecosystem.

### How often is HVAC Spools updated?

The latest version of HVAC Spools is version 3, and it was last updated on September 25, 2022. This indicates a moderate update frequency.

### What is the age rating for HVAC Spools?

HVAC Spools has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals, though its primary audience is professionals.

## Version history (last 3 releases)

### 3 — 2022-09-25

- General update

### 2.0 — 2017-09-11

- Cleaning and improving codes

### 1.0 — 2014-10-03

No release notes.

## More apps by Rab Elias

- [Blast Pressure](https://appshunter.io/ios/app/blast-pressure/id1187622431)
- [Continuous Beam](https://appshunter.io/ios/app/continuous-beam/id1278637736)
- [List Engineering Apps](https://appshunter.io/ios/app/list-engineering-apps/id1287551534)
- [Rectangular Beam](https://appshunter.io/ios/app/rectangular-beam/id1436344246)
- [T Beam](https://appshunter.io/ios/app/t-beam/id1444540553)

All apps by Rab Elias: https://appshunter.io/developer/918944482

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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 2026-06-10.*