Originally Posted By: jhagarty
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Bradford White 50 Gallon Natural Gas water heater / 8 years old.
Water heater is a Hi Efficiency Hydro-Jet model directly vented thru the foundation wall to the exterior of the home.
4 Bedroom, 3.5 Bath Home / 8 years old.
Copper water supply lines throughout the home.
High vibration on the hot water piping reverberating throughout the home.
Vibration occurs for approximately 5 minutes AFTER the water is shutoff and only when the Hot water is used. It also only occurs when the Burner on the water heater is firing when the water is shutoff.