Water heaters tend to operate quietly in the background. At times, though, you may hear a loud banging, popping, or knocking sound. Is this just the appliance settling, or is this a symptom of a more serious problem? We’ll discuss the implications of a noisy water heater and what homeowners should do.
Hardwater is the most common culprit. The water may contain calcium, magnesium, or other mineral deposits, which sink and collect at the bottom of the tank. Steam bubbles that rise up inside the tank burst as they make their way through the sediment. This creates the popping and crackling noise you may hear from time to time.
The occasional popping sound is no cause for alarm, at least not yet. The water heater isn’t going to drop dead. However, you should contact a plumbing service at your earliest convenience.
The sediment at the bottom acts as an insulation blanket and prevents the heater from transferring heat to the water. This means the heater has to work harder to produce the same output. This is comparable to an HVAC system that has to work harder to heat/cool a room due to a dirty filter. More energy expenditure means less efficiency and higher utility costs.
A water heater that has to work harder may also overheat and wear away the tank’s protective lining, causing it to rust. This is why it’s important to bring in a technician to flush the heater.
Don’t ignore the occasional popping and banging coming out of your heater. Call Plumbing & Heating Specialist to flush the system. Our special offers provide savings on select maintenance work. Don’t ignore a noisy water heater; bring in a technician to flush the system.
Edited by Justin Vorhees
Serving Customers in Snohomish, King & Pierce Counties, including Lynnwood, Mukilteo, Edmonds, Mill Creek, Bothell, Snohomish, Shoreline, Brier, Mountlake Terrace, Maltby, Lake Forest Park, Everett, Marysville, Lake Stevens & Woodway