Guideline A-9: NOx Emissions from Boilers and Heaters (March 2001)
Description: The purpose of this Policy Guideline is to reduce smog in Ontario, by reducing the emission of oxides of nitrogen by new (or modified), large, boilers and heaters. This guideline specifies limits for emissions of oxides of nitrogen (“NOx”) for new or modified fossil-fuel boilers and heaters which have a fuel energy input greater than 10 million Btu/h (10.5 GJ/h). It also specifies various NOx emission limits, based on the type of fuel and the size of boiler or heater, with specified credits for high efficiency.
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