This is a full version of the gas ventilation app and is developed against the standards of BS 5440 Part 2 2009.
This app can size vents for:
Open flued appliances
Room Sealed appliances
Vent size checker
The app includes comprehensive instructions of how to use the app
The app also includes the definitions used in gas ventilation standards
The measurement automatically calculates from Gross to Net. The app also gives guidance wherever possible with on screen messages . The app is developed to remove the need to carry books around with you all the time, all you should need is a tape measure.