Benchmark 3000 condensing boilers. AERCO International
Benchmark 3000 condensing boilers.

Boilers and Water Heaters Fill Vacancy for Efficient and Reliable Performance

D.C. hotel saves more than $100,000 annually.

At the luxury Capitol Hill Hotel in Washington, D.C., the water-heating system, which consisted of two 16,000-MBtu fire-tube boilers and two large indirect water heaters that ran off the boilers, dated to the Carter administration. Because they were nearly 40 years old, the boilers had to operate continuously to prevent leakage.

Although the system was designed with 100-percent redundancy, it had no isolation valves, so unit firing had to produce extra heat just to temper the cold wat

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