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Why are hot water heaters being manufactured differently?

April 26, 2017Heaters hot manufactured water

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Why are hot water heaters being manufactured differently?

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A. Effective July 1, 2003, most residential gas-fired hot water heaters meet a new American National Standards Institute (ANSI) Standard so it will not ignite flammable vapors caused by spilled gasoline outside the unit. The new standard does not require you to replace existing hot water heaters but all new hot water heaters must meet the standard.