Calculate CO/CO₂ ratio and verify combustion performance against industry safety standards.
CO/CO₂ Ratio
0.0000
Ratio Assessment
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Limit: 0.008
CO Level
0
PPM
CO Assessment
—
Max: 200 PPM
Formula Reference
CO/CO₂ Ratio = CO (PPM) ÷ (CO₂ (%) × 10,000) Ratio Pass = Ratio < Appliance Type Limit CO Pass = CO PPM < Action Level Limit
Note: For flueless cooker hobs, assess flame picture visually as per manufacturer guidance.
Important: This calculator provides indicative combustion analysis only. Always follow manufacturer specifications and Gas Safe guidelines. If readings fail, do not leave the appliance in operation.
