Work out gas purging volumes. under IGE/UP1b Domestic installers can work on pipes up to and including
35mm or 1 1/4" and meters up to 16 m3/hr volume.
Calculations are required, well not any more..... select the type of meter, input the lengths of pipe that have or will be installed in the property press calculate
It is so simple no more tables or decimal points to get wrong.
It even tells you what type of purge procedure should be used.
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