Efficiency rating of up to 90% AFUE.
ENERGY STAR® qualified which means it meets or exceeds U.S. federal guidelines for energy efficiency.
Cast-aluminum heat exchanger transfers heat up to three times faster than traditional cast-iron exchangers.
Easy integration with traditional radiator systems to provide precise heating comfort, regardless of outdoor temperatures.
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in section "Storage water heaters"
View also products categories "Water heaters, boilers"