# HyTools

> Hydronic calculator app for HVAC professionals with various calculation and sizing tools. (iPhone/iPad app by IMI Hydronic Engineering International SA.)

- Source: https://appshunter.io/ios/app/hytools/id537674477 (this page in markdown: same URL + `.md`)
- Developer: [IMI Hydronic Engineering International SA](https://appshunter.io/developer/508015425)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.00/5 from 5 App Store ratings · 8 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 114 MB
- Languages: American English
- Released: 2012-08-15
- Data updated: 2026-07-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/hytools/id537674477/reviews.md

## What is HyTools?

IMI Hydronic Engineering proudly presents HyTools, the user-friendly hydronic calculator App for HVAC professionals.

Features include:
- Hydronic calculator (enter any two values and get the third one):
- flow - Kv/Cv - pressure drop
- power - flow - temperature difference
- flow - valve setting - pressure drop
- Dirt and air separator pressure drop calculation
- Valve sizing and presetting
- Radiator power estimation (panel and column)
- Radiator valve sizing and presetting
- Pipe sizing
- Unit conversion
- Run-time selection of localisation
- Run-time selection of language
- Pressure maintenance and vacuum degassing calculation and selection for heating, cooling and solar systems


Stay tuned for great upcoming updates adding further hydronic calculation functions.

Please visit www.imi-hydronic.com for more information and contact details.
Phone numbers to local support can be found here: http://www.imi-hydronic.com/en/contact/

IMI Hydronic Engineering International SA is the leading global provider and expert in hydronic distribution systems and room temperature control, with experience in more than 100,000 projects worldwide. We help our customers everywhere optimise HVAC systems so they deliver desired comfort with optimal efficiency. IMI Hydronic Engineering is part of the international engineering group IMI plc which is listed as a member of the FTSE 100 on the London Stock Exchange.

## Key features

- Hydronic calculator
- Valve sizing and presetting
- Radiator power estimation
- Pipe sizing
- Unit conversion
- Pressure maintenance calculation

## Recent user reviews (8 of 8)

All indexed reviews: https://appshunter.io/ios/app/hytools/id537674477/reviews.md

### 2/5 — New app does not match circuit setters

*2021-09-13*

This new app does not support American model STAD and STAF circuit setters. The app only contains sizing for European DIN numbers and not American sizes. I had to use the TA circuit setter wheel to balance the system.

### 5/5 — Update

*2018-02-07*

Thanks for the update! Glad I can use it again!

### 3/5 — Calculator doesn't work

*2015-10-30*

I really like the app. It's easy to use. I wish all balancing valves had an app so I didn't have to worry about keeping track of a balancing wheel. There is one problem however. On this app I'm able to put in my setting and my pressure drop and the valve model but not the size of the valve. Every time I put in my info and it spits out a gpm it's never correct. I think it has to do with the fact you can't put in the valve size. Unless I'm missing it somewhere.

### 3/5 — Reduced pipe materials selection

*2015-03-18*

Use this app a lot especially the pipe sizing section, particular for comparing sizes for different pipe materials. However, since the region function update, the plastic pipe such as Aquatherm Climatherm or the ABS pipes have disappeared. GFs Instaflex and Aquasystem are used in the UK along with Aquatherms Climatherm and Fusiotherm pipe systems, as well as those from Polypipe etc. it would be great to have these piping systems included in the app for comparison agains the traditional steel and copper.

### 1/5 — Failed Update

*2014-08-23*

The latest update does not let this app load properly. I use this app all the time for my work. I'm a iPhone 4S user please fix. Was a 5 star but now it's useless and simply a waste of space on my phone until it's fixed

### 5/5 — Great app!

*2014-05-24*

Have used this app when designing one of our current projects. Found it very helpful.

### 5/5 — Handy tool

*2013-02-22*

Units converter is handy for people working in an international firm, especially those poor engineers who actually can not afford to mess up!

### 5/5 — 非常方便实用

*2012-08-16*

老字号TA终于发布了与时俱进的好app，除平衡阀系列外还综合排气除渣产品和恒温阀等产品的选型，实用的水力计算。非常方便！

## Frequently asked questions about HyTools

### What hydronic calculations can HyTools perform?

HyTools offers a range of calculations including flow, pressure drop, power, temperature difference, valve settings, and radiator power estimation. It also handles dirt and air separator pressure drop, pipe sizing, and pressure maintenance for heating, cooling, and solar systems.

### Can I use HyTools offline?

The provided description does not specify offline functionality. However, its nature as a calculation tool suggests it may function without a constant internet connection for core features.

### What devices does HyTools support?

HyTools is available for iPhone, iPad, and iPod devices, indicating compatibility with Apple's mobile operating system.

### How often is HyTools updated?

The app was last updated on February 18, 2026, suggesting a recent update. The description also mentions upcoming updates with further calculation functions.

### What is the age rating for HyTools?

HyTools has an age rating of 4+, making it suitable for a wide range of users.

### Does HyTools have ads?

No, HyTools does not contain advertisements, as indicated by the 'hasAds' flag being false.

### What languages does HyTools support?

HyTools allows for run-time selection of language, suggesting it supports multiple languages for user convenience.

### Where can I find more information about HyTools or IMI Hydronic Engineering?

More information can be found on the IMI Hydronic Engineering website at www.imi-hydronic.com. Contact details and local support phone numbers are also available there.

## Version history (last 5 releases)

### 4.1.7 — 2026-07-23

Lots of small enhancements and bug fixes

### 4.1.6 — 2026-04-14

- Added TA Modulator DN100/125

### 4.1.5 — 2026-02-18

- Added Aquatherm Blue SDR 17.6/11/9/7.4 pipe series
- Added TA Nano DN25

### 4.1.4 — 2025-11-03

Minor bug fixes

### 4.1.3 — 2025-10-20

English:
- Introducing TA-Nano: an ultra-compact Pressure Independent Balancing and Control Valve (PIBCV)
- New fluid options: Kilfrost GEO and Glysofor E, for calculating ground-source heat pump circuits

## Apps similar to HyTools

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [OneTwoCount](https://appshunter.io/ios/app/onetwocount/id1454584180) | — | Free | Productivity |
| [Your Ashford BC](https://appshunter.io/ios/app/your-ashford-bc/id1452979480) | — | Free | Productivity |
| [SyncOnSet 5.0](https://appshunter.io/ios/app/synconset-50/id1460160860) | 1.8 (60) | Free | Productivity |
| [ZappID](https://appshunter.io/ios/app/zappid/id1455029820) | — | Free | Productivity |
| [Thetis Tools](https://appshunter.io/ios/app/thetis-tools/id1460268980) | — | Free | Productivity |
| [Jumpstash](https://appshunter.io/ios/app/jumpstash/id1465670860) | 4.2 (5) | Free | Productivity |

## More apps by IMI Hydronic Engineering International SA

- [HyTune](https://appshunter.io/ios/app/hytune/id1053462919)
- [IMI Heimeier neo](https://appshunter.io/ios/app/imi-heimeier-neo/id6445922416)
- [HeimSync](https://appshunter.io/ios/app/heimsync/id6462407888)

All apps by IMI Hydronic Engineering International SA: https://appshunter.io/developer/508015425

## Related topics

[hytools](https://appshunter.io/ios/topics/hytools) · [imi hytools](https://appshunter.io/ios/topics/imi-hytools)

---

*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 2026-07-25.*