Hydronic boilers enable efficient control and delivery of heat when and where it is needed. Before the introduction of condensing-boiler technology, boilers typically operated at efficiencies of 80 to 85 percent. Today, condensing hydronic boilers can operate at efficiencies in the mid- to high 90s. Hydronic boilers can be used for either building heat or process hot-water applications. A condensing boiler extracts latent and sensible heat from combustion exhaust, and the resulting energy ...

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