Radiator / BTU Calculator at App Store analyse

App power index: 145 (based on ranks around App Stores today)
Utilities Productivity
Developer: Claire Holmes
Price: 0 free
Current version: 7.0.0, last update: 4 years ago
First release : 19 Oct 2010
App size: 39.53 Mb
4.8 ( 3568 ratings )
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Estimation application downloads and cost

> 3.19k
Monthly downloads
~ $ 1.31k
Estimation App Cost


This application is a must for any plumber, builder or home DIY enthusiast, infact anyone who wants to find out what radiator BTUs 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
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We have also included a free Celsius to Fahrenheit converter and a gross / net kW/BTU converter.
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Available in countries
Country Price
Canada 2.99 CAD
China 15 CNY
France 1.99 EUR
Germany 1.99 EUR
Italy 1.99 EUR
Netherlands 1.99 EUR
Portugal 1.99 EUR
Spain 1.99 EUR
Poland 2.29 EUR
UK 1.99 GBP
India 199 INR
Japan 300 JPY
Korea, Republic Of 3300 KRW
Poland 9.99 PLN
Russia 199 RUB
Turkey 59.99 TRY
USA 1.99 USD
Korea, Republic Of 2.19 USD
Ukraine 1.99 USD
Available for devices
iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX, iPad75, iPad76, iPhoneXS, iPhoneXSMax, iPhoneXR, iPad812, iPad834, iPad856, iPad878, Watch4, iPadMini5, iPadMini5Cellular, iPadAir3, iPadAir3Cellular, iPodTouchSeventhGen, iPhone11, iPhone11Pro, Watch5, iPadSeventhGen, iPadSeventhGenCellular, iPhone11ProMax, iPhoneSESecondGen, iPadProSecondGen, iPadProSecondGenCellular, iPadProFourthGen, iPadProFourthGenCellular,