The operation of boilers in buildings must be done in a safe and environmentally acceptable manner. Safety issues include control of water level and overpressure. Environmental issues include restrictions on sewering boiler blowdown. Indoor air quality issues include the use of amines in steam used for humidification, sterilization and food preparation. Control of feedwater and boiler water quality is a factor in both safety and environmental considerations. Keywords: boiler tiety, environmental, indoor air quality, boiler water chemistry, arnines, boiler
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