My water heater has been making loud popping and rumbling sounds, especially when it is heating up. Is it going to explode?
Popping and rumbling sounds from a water heater are caused by sediment buildup at the bottom of the tank. Over time, minerals settle and form a layer. When the burner heats the water, trapped water underneath boils and creates popping sounds. It is not going to explode, but it reduces efficiency and shortens tank life. The fix is to flush the tank: turn off gas or electricity, connect a garden hose to the drain valve, run to a drain or outside, and let water flow until clear (5-15 minutes). Flush annually to prevent buildup. If the tank is over 8-10 years old and never flushed, sediment may be too hardened. If you hear a high-pitched whining instead of popping, that could indicate a failing pressure relief valve, which needs professional attention.
How do I know when to replace the water heater entirely?
Replace when the tank is over 10-12 years old, if you see rust-colored water from the hot tap, visible leaks around the base, or if flushing does not stop the noises. A leaking water heater can cause thousands in damage so do not wait for failure.
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