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8.1.9 Combustion test
A BS7967 combustion analysis check should be carried out using an
analyser to BS7927 positioned in the flue outlet, or draft diverter.
A Ratio of CO/CO2 should be less than 0.01 within 30 minutes. (100ppm
CO per 1% CO 2).
A reading of CO in the room centre should give a rise of less than 9ppm
over ambient, peak reading.
8.2 Propane conversion
For conversion from propane to natural gas (or the other way around),
you have to order a complete new propane burner unit. Contact your
supplier and give the serial number from the data plate when you order.