Resources

Free engineer resources

Free worksheets and gas-engineer resources.

Free worksheets, calculators and practical training aids, made to be easy to use on the job.

01Printable worksheet

IGEM UP/1B Edition 4 worksheet

A printable worksheet for installation volume, purge volume and permissible pressure-drop calculations.

Download worksheet
04Printable worksheet

Gas pipe-sizing worksheet

Follow Derek’s video with this A4 working sheet. Requires the LCL Domestic manual, tables D1a and D1b; reference tables are not included.

Get the free worksheet
02Onsite calculator

IGEM UP/1B Edition 4 calculator

Quick installation volume, purge volume and permissible pressure-drop calculations when you need them.

Open calculator
03Inspection support

Gas inspection prep guide

Practical preparation support when your Gas Safe inspection is coming up.

View prep guide

These resources are practical guidance and training aids only. Always follow current standards, manufacturer instructions and safe working practices.

More free tools

More calculators and tools.

Calculators and simple guides designed for engineers at the point of use.

Browse all gas tools
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A taste of the October email
Northern Ireland’s upcoming gas-rule changes, explained through landlord-check dates, appliance checks and record keeping. Clearly marked where it applies, with links to read the full guidance.

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