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Gas Rate & Appliance Commissioning

Meter dial test (metric or imperial) to gas rate and heat input in kW, with net/gross CV and an appliance data-badge tolerance check.

Meter test

m³

Meter reading difference over the test

s

Standard test is 2 minutes (120 s)

Appliance comparison

UK appliance plates now typically quote net; older plates quote gross

kW
%

Gas Safe TB141 default: +5%

%

Gas Safe TB141 default: −10%

Enter the meter test reading and the appliance data-badge rating to calculate
ensign.software · 28 October 2026The Ensign Toolbox