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15 yrs old water heater
- Thread starter harmony68
- Start date
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The crackling or rumbol sound is excessive sediment build-up in the tank (The sediment is heating up). Yes ,It would be futile to attempt to drain it. The water heater probably would not drain with out removing the boiler drain due to the build up of sediment. At 15 yrs old I would replace it.
Retroloco-LJ
Member
The average life span of a storage tank heater is 11 years. You're well over that. I would definitely replace it and do so knowing you got the full life span of your current one.