Free tools
Tools for everyday gas work
Quick, free tools for the sums you do on the job and in class. They work on a phone or tablet, and you can add any of them to your home screen.
- Free
Gas rate and heat input
Enter the meter readings from a timed test and get the gas rate and the gross and net heat input.
Open tool
- FreeDraft: not yet checked
Installation and purge volume
Pick the meter, tap in the length of each pipe size as you walk the property, and get the installation volume (IV) and the purge volume (PV), and whether IGEM/UP/1B applies.
Open tool
- FreeDraft: not yet checked
Tightness test
Walk through a tightness test to IGEM/UP/1B for natural gas, LPG or LPG/air on a live supply, or an air test of a new installation: the let-by test, raising and stabilising the pressure, and the two-minute test, with a timer for each part and a pass or fail at the end.
Open tool
- Coming soon
Pressure units converter
Convert between mbar, kPa, Pa and inches water gauge.
- Coming soon
Tightness test and purge volume
Find the permitted drop for an installation and the purge volume.
- Coming soon
Pipe sizing
Check a pipe run is big enough for the appliances it supplies.