Rheem gas-fired water heaters

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December 13, 2010

Rheem Water Heating has developed a damper design on select residential gas-fired models, enabling them to achieve an energy factor (EF) from 0.67 to 0.69 to meet Energy Star’s Phase II requirements. Consisting of a 24-volt, powered flue damper positioned atop the unit, the technology opens and closes automatically in response to gas-burner activity within the water heater. When the gas control shuts off the fuel supply it also signals the damper to close, trapping whatever heat remains inside the flue and reducing standby heat loss.

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