Gas Combustion Toolbox is a fully featured calculator that allows to:

- calculate either gas flow or heat power of natural and LPG reference gases.
- compare two different gases calculations either by considering the density ratio or the same power
- calculate the air flow necessary to combust a given gas flow
- calculate corresponding combustion parameters as CO2%, O2%, lambda.
- calculate gas injector diameter or gas pressure drop
- calculate the equivalent diameter of multiple gas injectors
- calculations are based on UI or Imperial units (selectable)

Pro version has the following additional features:
- 37 natural and LPG gases are available (comprising limit gases)
- the altitude influence on combustion is automatically calculated
- additional custom gases can be added giving their composition; they can be saved allowing to build your own gas database. The new gas characteristics (density, low and high calorific value and wobbe index are automatically calculated)

Step 1. Download Gas Combustion Toolbox Pro Mod (Paid for free Free purchase) APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Gas Combustion Toolbox Pro Mod (Paid for free Free purchase) APK will begin installing on your device. Simple.

Step 1. Download HappyMod APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Search Gas Combustion Toolbox Pro Mod, click Download.
Step 4: You can download 100% working mods on HappyMod with one click.