Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Radiator / BTU Calculator Screenshots

iPad

iPhone

About Radiator / BTU Calculator

This application is a must for any plumber, builder or home DIY enthusiast, infact anyone who wants to find out what radiator BTU's are required for a particular room size.

Wether you have existing radiators and want to check that they are the correct size or if you are adding a new radiator to a room; this is the application for you.

The simple yet intuitive interface allows you the choice of measurements in feet or meters.

This calculator has the added benefit of showing you the BTU required and also the kW required - all of which can be stored in the application database so you can refer to them at a later date. No more scraps of paper left lying around.

Features that can be adjusted for the BTU calculation include:

Room volume
Room use
Double glazing
North facing
French windows
Flooring
Foam-filled or uninsulated cavity walls
2 or 3 outside walls
Units of measurement
Save your results

We have also included a free Celsius to Fahrenheit converter and a gross / net kW/BTU converter.

What's New in the Latest Version 7.0.0

Last updated on Sep 15, 2019

Old Versions

Completely redesigned interface for all screen sizes.
Added handy gross / net BTU/KW conversion tool.
Added handy Celsius to Fahrenheit conversion tool.

NOTE - Please backup or take a note of your saved results before updating.

Version History

7.0.0

Sep 15, 2019

006

Jan 14, 2016

Made compatible with latest iOS version

= Please backup or take a note of your saved results before updating.

003

Jan 6, 2011

Added in additional room features such as :

Solid floors
Foam-filled and uninsulated cavity walls
2 or 3 outside walls.

Additional functionality allows for greater flexibility and hence greater accuracy.

Calculator is now in a scrollable window due to extra content.

Updated the About page.

Please take a note / backup of your saved results incase there should be any loss of result data before updating.

002

Dec 2, 2010

Shake to clear function - Added in ability for user to shake and clear the inputs.

Application now remembers the last units of measurement used.

Save function - You can now to save any of your results allowing you to refer to them at a later time or date.

Saved Results List - Previously saved items can be deleted to remove results which are no longer required.

001

Oct 19, 2010

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