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AERCO International Inc.: Commercial Condensing Boiler

August 2, 2010
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The Esteem 399 wall-hung condensing boiler offers high efficiency and reliability to a variety of commercial hot-water applications. The boiler delivers 3.6:1 turndown and 95 percent efficiency, which helps improve system operation and reduce overall energy consumption in applications requiring 112,000 to 399,000 Btuh. A corrosion-resistant 439 stainless steel fire tube heat exchanger makes the boiler well suited for today’s efficient, condensing hydronic heating systems, says the company. Thermal efficiency is maximized by the heat exchanger tube design, which creates flue gas and water turbulence. A premix air/fuel blower and high-grade stainless steel burner capable of modulating the firing rate from 28-100 percent allows the Esteem 399 to closely match heating needs without short cycling or reducing efficiency. According to the company, the burner features whisper-quiet operation of <50 dBa and reliable spark ignition.

AERCO International Inc., 159 Paris Ave., Northvale, NJ 07647; 201-768-2400 or 800-526-0288; www.aerco.com

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