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Modern Hydronic Designs, Controls, and Condensing … · Modern Hydronic Designs, Controls, and Condensing Boilers ... Boiler Efficiency Classifications ... – In a condensing boiler,
Highly Efficient Condensing Boiler & Combi Units …Type Boiler Boiler Boiler Boiler Combi Combi Combi Installation Indoor, Wall Hung, Fully Condensing Minimum / Maximum Input (Btu/Hr)1