TopTen USA

Ranking Criteria: The most efficient water heaters, ranked by Energy Factor, based on likely annual energy consumption. ENERGY STAR also uses this calculation.
Comparison Criteria:

How We Evaluate Our Electric Storage Water Heaters

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Stiebel Eltron Accelera 300

Stiebel Eltron
Accelera 300

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Airgenerate AT166

Air Generate, USI Green Energy
Multiple Models

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Airgenerate AT150

Air Generate, USI Green Energy
Multiple Models

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GE Geospring

GE
GEH50DNSR, GEH50DXSR

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Kenmore Elite both sizes

Multiple Brands
Multiple Models

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Kenmore Elite both sizes

Multiple Brands
Multiple Models

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Bosch HP200

Bosch, HTP
Multiple Models

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Rheem hp40

Rheem, Richmond, Ruud
Multiple Models

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Rheem HP50

Rheem, Richmond, Ruud
Multiple Models

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Category Last Modified: September 15, 2011

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