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![eCFR :: Appendix C to Subpart G of Part 431, Title 10 -- Uniform Test Method for the Measurement of Thermal Efficiency and Standby Loss of Gas- Fired and Oil-Fired Instantaneous Water Heaters eCFR :: Appendix C to Subpart G of Part 431, Title 10 -- Uniform Test Method for the Measurement of Thermal Efficiency and Standby Loss of Gas- Fired and Oil-Fired Instantaneous Water Heaters](https://img.federalregister.gov/ER10NO16.020/ER10NO16.020_original_size.png)
eCFR :: Appendix C to Subpart G of Part 431, Title 10 -- Uniform Test Method for the Measurement of Thermal Efficiency and Standby Loss of Gas- Fired and Oil-Fired Instantaneous Water Heaters
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