It is known that the temperature of combustion flames should be less than 3,272 °F to prevent NOx generation. Generally, combustion flames will have some high temperature areas generating NOx.
Miura engineers calculated the temperature distribution in the combustion and the heat exchanging areas. From theoretical analysis and rigorous testing, the designed temperature distribution is homogeneously less than
3,272 °F.
The burner surface is made as large as possible and the furnace volume as small as possible to optimize the combustion process. As a result, the LX has NOx emissions of less than 30 ppm with no efficiency loss at 3% O2 and 85% efficiency.
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MIURA Boilers 
