# HVAC Pipe Sizer Plus — All types of pipe sizing

> HVAC pipe sizing tool for liquid, steam, and gas systems. (iPhone/iPad app by Carmel Software Corporation.)

- Source: https://appshunter.io/ios/app/hvac-pipe-sizer-plus/id352069594 (this page in markdown: same URL + `.md`)
- Developer: [Carmel Software Corporation](https://appshunter.io/developer/317970398)
- Category: Utilities, Business
- Price: $13.99
- Rating: 3.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 27 MB
- Languages: American English
- Released: 2010-02-02
- Data updated: 2026-07-06
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/hvac-pipe-sizer-plus/id352069594/reviews.md

## What is HVAC Pipe Sizer Plus?

The HVAC Pipe Sizer Plus application is a combination of three (3) of our individual pipe sizing applications including:

1. HVAC Pipe Sizer - Liquid
2. HVAC Pipe Sizer - Steam
3. HVAC Pipe Sizer - Gas Plus

This app is a universal app that works on both the iPhone and iPad and adjusts its screen size accordingly.

The "HVAC Pipe Sizer - Gas" module allows you to quickly size a simple low (less than or equal to 1.5 psi) and high (greater than 1.5 psi) pressure gas piping system by inputting a number of piping and gas properties.

The "HVAC Pipe Sizer - Steam" module allows you to size a steam pipe run, and it also includes a bonus steam table calculator.

The "HVAC Pipe Sizer - Liquid" module allows you to size a pipe run with many different types of liquids (or fluids), pipe material and fitting types.

This app also includes the HVAC Equipment Locator. Click here for details: http://bit.ly/1yTq539 

This application includes all of the great features of the individual pipe sizer apps such as the use of slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results. It also allows you to specify different types of liquids, gases, pipe material types, fitting quantities, min and max ranges, and step values. Also, you can display a wide variety of English and Metric units.

The "HVAC Pipe Sizer Plus" application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, Autodesk (the makers of AutoCAD) acquired our load calculation software and incorporated it into their leading 3D modeling software called Revit. In addition, we developed a number of customized apps for ASHRAE, DNV GL, and other organizations. 

We also offer the following additional apps for the iPhone and iPad: 

1. HVAC Residential Load Calcs for iPhone and iPad 
2. HVAC Quick Load Plus 
3. HVAC Quick Load 
4. HVAC Toolkit 
5. HVAC Pipe Sizer – Gas Low Pressure 
6. HVAC Pipe Sizer - Gas High Pressure 
7. HVAC Pipe Sizer – Liquid 
8. HVAC Pipe Sizer – Steam 
9. Steam Tables 
10. Psychrometric Plus 
11. Psychrometric LT 
12. HVAC Pipe Sizer Plus 
13. HVAC Pipe Sizer Gas Plus 
14. HVAC Toolkit Ultimate 
15. HVAC Equipment Locator 
16. HVAC ResLoad-J 
17. HVAC Psych HD

## Key features

- Liquid pipe sizing
- Steam pipe sizing with steam table calculator
- Gas pipe sizing (low and high pressure)
- HVAC Equipment Locator
- Slider controls for input adjustments
- English and Metric unit display

## Chart rankings

- #197 in Top Paid · Utilities (US App Store)

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/hvac-pipe-sizer-plus/id352069594/reviews.md

### 4/5 — Great Pipe Sizing App

*2019-08-07*

I work in HVAC design, and this app works well with other tools used to size piping. It does require background knowledge in order to decide on the selection parameters, but once you get that background this saves a lot of time by consolidating a bunch of pipe sizing resources. 

I would make two changes:

For liquid pipe sizing, it is often the case that two limiting parameters (friction & diameter) are used at the same time. The functionality that should be available is to set the app to select the size based on a maximum friction value AND a maximum velocity. 

For liquid type, it is common for hydronic systems to use a propylene glycol solution. This is currently not an option in your liquids menu but would help in making pipe selections. I would suggest a liquid type “propylene glycol solution” and simply add a “percentage concentration” of propylene glycol to the liquid parameters within this type.

### 3/5 — It's kind of awkward

*2012-04-27*

I would have liked to see my results in any units I select regardless of variable entry units

## Frequently asked questions about HVAC Pipe Sizer Plus

### What types of pipes can HVAC Pipe Sizer Plus size?

HVAC Pipe Sizer Plus can size pipes for liquids, steam, and both low and high-pressure gas systems. It supports various liquids, pipe materials, and fitting types for comprehensive calculations.

### Does HVAC Pipe Sizer Plus work on both iPhone and iPad?

Yes, HVAC Pipe Sizer Plus is a universal app designed to work on both iPhone and iPad, adjusting its screen size accordingly for optimal viewing on each device.

### What is the HVAC Equipment Locator feature?

The HVAC Equipment Locator is an included feature that provides details to help users find necessary HVAC equipment. Further details can be accessed via a provided link.

### Can I switch between English and Metric units in HVAC Pipe Sizer Plus?

Yes, HVAC Pipe Sizer Plus allows you to display a wide variety of English and Metric units, making it adaptable to different regional standards and user preferences.

### How often is HVAC Pipe Sizer Plus updated?

The latest version of HVAC Pipe Sizer Plus is 4.7, and it was last updated on January 26, 2026. This indicates a commitment to ongoing development and improvements.

### What is the price of HVAC Pipe Sizer Plus?

HVAC Pipe Sizer Plus is available for a one-time purchase price of $13.99. This is a paid application with no recurring subscription fees.

### Is HVAC Pipe Sizer Plus suitable for beginners?

While designed for professionals, the app's slider controls and clear input options make it relatively user-friendly for those learning HVAC design. Its comprehensive features cater to experienced users as well.

### Does HVAC Pipe Sizer Plus have ads?

No, HVAC Pipe Sizer Plus does not contain advertisements. As a paid application, it provides an uninterrupted user experience without any ad interruptions.

## Version history (last 5 releases)

### 4.7 — 2026-01-26

1. Added a Share button to the iPhone and iPad versions of the app, so you can now text, email, and download reports.
2. Updated help.
3. Optimized for iOS 26.

### 4.5 — 2023-04-03

1. Optimized for iOS 16 and iPhone 14
2. Updated help

### 4.1 — 2021-11-11

1. Optimized for iOS 15 and iPhone 13
2. Updated all of the individual Pipe Sizer modules
3. Updated in-app and launch icons
4. Updated email subject text
5. Updated help

### 3.7 — 2020-08-07

1. Updated the app launch screen per new Apple iOS guidelines.
2. Updated Google Analytics and Crashlytics

### 3.5 — 2019-11-12

1. Optimized the user interface for iOS 13 and iPhone 11x
2. Fixed the "negative sign" issue that occurs in iOS 13
3. Fixed issue with not displaying properly in iOS 13 "dark mode"
4. Updated help

## Apps similar to HVAC Pipe Sizer Plus

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Duct Calculator](https://appshunter.io/ios/app/duct-calculator/id1078238132) | 4.5 (179) | $19.99 | Utilities |
| [Pipe Calculator](https://appshunter.io/ios/app/pipe-calculator/id1164201249) | — | $3.99 | Utilities |
| [Gas Pipe Sizing Calculator](https://appshunter.io/ios/app/gas-pipe-sizing-calculator/id596009129) | 4.0 (4) | $1.99 | Utilities |
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## More apps by Carmel Software Corporation

- [HVAC Duct Sizer](https://appshunter.io/ios/app/hvac-duct-sizer/id317970395)
- [HVAC Pipe Sizer - Liquid](https://appshunter.io/ios/app/hvac-pipe-sizer-liquid/id325069065)
- [HVAC Pipe Sizer - Steam](https://appshunter.io/ios/app/hvac-pipe-sizer-steam/id336112747)
- [Steam Tables](https://appshunter.io/ios/app/steam-tables/id339948012)
- [HVAC Pipe Sizer - Gas Low](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-low/id341688321)
- [HVAC Pipe Sizer - Gas High](https://appshunter.io/ios/app/hvac-pipe-sizer-gas-high/id341828523)

All apps by Carmel Software Corporation: https://appshunter.io/developer/317970398

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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 2026-07-06.*