What Is Your Zone?


Higher efficiency means higher savings.
Affinity™ gas furnaces can provide double the efficiency of older models. To use the map and chart, determine the AFUE of your current system. Then using the map, find your zone. Cross-reference your zone and AFUE in the table to determine your approximate operating cost. Take the difference between your current cost and that of a new, more efficient Affinity™ System to learn your estimated annual savings.

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