Dunkirk Boilers offers its new Quantum 95M-200 sealed combustion boiler with 95 percent efficiency. It is fully modulating from 80 - 200 MBH and features a one-piece cast-aluminum heat exchanger. The one-piece casting eliminates section interface leaks and includes wide waterways resulting in little pressure drop, which eliminates the need for expensive and bulky high head circulators or special near-boiler piping.

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