---
title: "HVAC Pipe Sizer - Gas Low - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "The "HVAC Pipe Sizer - Gas Low" application allows you to quickly size a simple low pressure (less than 1.5psi) gas piping system by inputting a number of piping and gas properties.  You can specify t"
---

# HVAC Pipe Sizer - Gas Low — United States
> Low pressure gas pipe calcs

![HVAC Pipe Sizer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/cd/41/1e/cd411e98-79ae-eb9f-45a8-4aa3633dc945/AppIcon-1-0-0-1x_U007emarketing-0-10-0-85-220.png/434x0w.png)

**Developer:** [Carmel Software](https://apptail.io/developer/carmel-software-daB) (United States)
**Category:** Productivity
**Rating:** 5.0/5 (2 ratings)
**Price:** Free
**Bundle ID:** com.yourcompany.HVACPipeSizer-GasLow
**Store:** Apple App Store
**Country:** United States
**Version:** 4.76 (released 2025-12-05)
**Original Release:** 2009-12-03
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id341688321)
**AppTail Page:** [https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/united-states](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/united-states)

## HVAC Pipe Sizer Description
The "HVAC Pipe Sizer - Gas Low" application allows you to quickly size a simple low pressure (less than 1.5psi) gas piping system by inputting a number of piping and gas properties.

You can specify the total gas flow in cuft/hr (CubicM/hr) and one of either pressure drop (in. wg or Pa), pipe internal diameter (inches) or gas velocity (ft/s) parameters. The results include both the exact and nominal pipe diameters and the calculated velocity and total pipe equivalent length. If you are analyzing an existing pipe system, there is an option to input the existing pipe internal diameter and one of either pressure drop or gas velocity parameters to derive the calculated gas flow and other remaining properties.

You can specify additional parameters such as the type of gas, various properties of the gas, the pipe material type, the total length of pipe, quantities for up to 11 different types of pipe fittings, and much more. You can also choose to display values in either english or metric units.

This application includes built-in pipe fitting equivalent length and nominal pipe sizing tables for a wide variety of pipe material types and diameters.

The "HVAC Pipe Sizer - Gas Low" application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results. You can also manually input exact values.

All values can be displayed in English (IP) and Metric (SI) units.

This app now includes the HVAC Equipment Locator. Click here for details:  

This 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. 

We also offer the following additional applications for the iPhone/iPad:

1. HVAC Duct Sizer
2. HVAC Pipe Sizer – Gas Low Pressure
3. HVAC Pipe Sizer - Gas High Pressure
4. HVAC Pipe Sizer – Liquid
5. HVAC Pipe Sizer – Steam
6. Steam Tables
7. Psychrometric Plus
8. Psychrometric LT
9. HVAC Pipe Sizer Plus
10. HVAC Pipe Sizer Gas Plus
11. HVAC Toolkit
12. HVAC Toolkit Ultimate
13. HVAC Residential Load Calcs
14. HVAC Load Plus
15. HVAC Equipment Locator
16. ASHRAE Duct Fitting Database
17. ASHRAE 62.1 Ventilation Load Calcs
18. HVAC Psych HD
19. HVAC ResLoad-J
20. HVAC Residential Load Calcs HD

## HVAC Pipe Sizer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/64/c1/f2/64c1f231-f864-48fa-f951-1efc5ee08b93/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/1a/ed/1a/1aed1a07-397c-92c0-f64a-c18ca438cca2/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/30/db/c8/30dbc84e-d4a6-e545-e65d-9909959c3056/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/8e/c2/65/8ec26514-6947-f3ad-3cc7-e5647370d7e6/pr_source.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/a2/76/59/a2765997-4449-7b05-8f49-0b699c71ab78/pr_source.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/65/98/37/65983794-0f9a-2543-eda7-095e04f97b8f/pr_source.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/b7/7a/5e/b77a5e36-3f00-2d7e-5e6e-00d6228c9316/pr_source.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/55/82/0f/55820fd9-3aa8-a75f-0463-c52d40a2b51a/pr_source.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/1d/fd/c1/1dfdc18a-918a-d357-6850-63f802715dde/pr_source.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/32/f6/02/32f602bb-10f7-a38e-172f-6d0088fbea5e/pr_source.png/1242x2688.png)

## HVAC Pipe Sizer Rating Breakdown in United States
- 5 stars: 2 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)




## HVAC Pipe Sizer Discovered Keywords
- hvac pipe sizer
- gas low

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## HVAC Pipe Sizer Available In
- [United States](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/united-states)
- [United Kingdom](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/united-kingdom)
- [Austria](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/austria)
- [Australia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/australia)
- [Azerbaijan](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/azerbaijan)
- [Belgium](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/belgium)
- [Bulgaria](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/bulgaria)
- [Brazil](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/brazil)
- [Belarus](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/belarus)
- [Canada](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/canada)
- [Switzerland](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/switzerland)
- [Chile](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/chile)
- [China](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/china)
- [Colombia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/colombia)
- [Czechia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/czechia)
- [Germany](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/germany)
- [Denmark](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/denmark)
- [Dominican Republic](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/dominican-republic)
- [Algeria](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/algeria)
- [Ecuador](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/ecuador)
- [Estonia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/estonia)
- [Egypt](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/egypt)
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- [Finland](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/finland)
- [France](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/france)
- [Greece](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/greece)
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- [Honduras](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/honduras)
- [Croatia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/croatia)
- [Hungary](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/hungary)
- [Indonesia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/indonesia)
- [Ireland](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/ireland)
- [Israel](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/israel)
- [India](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/india)
- [Italy](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/italy)
- [Japan](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/japan)
- [South Korea](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/south-korea)
- [Kuwait](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/kuwait)
- [Kazakhstan](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/kazakhstan)
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- [Panama](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/panama)
- [Peru](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/peru)
- [Philippines](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/philippines)
- [Pakistan](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/pakistan)
- [Poland](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/poland)
- [Portugal](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/portugal)
- [Qatar](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/qatar)
- [Romania](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/romania)
- [Russia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/russia)
- [Saudi Arabia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/saudi-arabia)
- [Sweden](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/sweden)
- [Singapore](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/singapore)
- [Slovenia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/slovenia)
- [Slovakia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/slovakia)
- [Thailand](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/thailand)
- [Tunisia](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/tunisia)
- [Türkiye](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/turkey)
- [Taiwan](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/taiwan)
- [Ukraine](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/ukraine)
- [Uzbekistan](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/uzbekistan)
- [Vietnam](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/vietnam)
- [United Arab Emirates](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/united-arab-emirates)
- [South Africa](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/south-africa)
- [Argentina](https://apptail.io/app/hvac-pipe-sizer-gas-low-NdRj/argentina)

---

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