Free

Details

  • Released
  • Updated
  • August 15, 2012
  • April 14, 2026

Features

HyTools screenshot #1 for iPad
HyTools screenshot #2 for iPad
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About

This app provides HVAC professionals with a comprehensive suite of hydronic calculation tools. It assists with tasks like valve sizing, pressure drop calculations, and radiator power estimation. The tool offers unit conversion and language selection for user convenience.

βœ“Hydronic calculator
βœ“Valve sizing and presetting
βœ“Radiator power estimation
βœ“Pipe sizing
βœ“Unit conversion
βœ“Pressure maintenance calculation
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What's New in HyTools

4.1.6

April 14, 2026

- Added TA Modulator DN100/125

User reviews

New app does not match circuit setters

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.

Update

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

Calculator doesn't work

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.
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Reduced pipe materials selection

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.
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Failed Update

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

Developer apps

FAQ

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.