This is a short video displaying the flame shape and length in a vertical firing 5MW Limpsfield burner fitted with the Autoflame System on a 1968 Hygrotherm Thermax Oil Heater.
The flame was commissioned on both No. 2 Oil, and Nat.. Gas.
On oil, the combustion readings ranged between 4.2% O2 and 5.9% O2 from high to low fire (at 5 to 1 turn down) with 0ppm CO.
On gas, the combustion readings ranged between 2.6% O2 and 6.5% O2 from high to low fire (at 5 to 1 turn down) with 0ppm CO.
The High O2 values at low fire were due to excess tramp air in the furnace.
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