TopTen USA

Ranking Criteria: The most energy efficient gas storage water heaters, ranked by thermal efficiency (%)
Comparison Criteria:

How We Evaluate Our Gas Storage Water Heaters

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American-Polaris PG10 34100

American Water Heater Company
PG10 34-100-2NV

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AO Smith 6 50

A.O. Smith, Reliance, State
Multiple Models

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HTP PH100-80

Heat Transfer Products
PH100-80

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HTP PH100-80

Heat Transfer Products
PH100-55

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AO SMith btx80

A.O. Smith, Reliance, State
Multiple Models

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AO Smith HYB-90

A.O. Smith
HYB-90N

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Category Last Modified: September 15, 2011

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