Over time, a tankless water heater may accumulate mineral build up which can erode the walls inside your tank’s heating chamber. To properly maintain and clean your tankless water heater, it’s important to flush those mineral deposits at least once a year.
How long should I descale my tankless water heater?
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Attach hosing lines that work with the specific tankless water heater model. Open purge valves again. Run vinegar through the tankless water heater to remove the scale. Flush and drain according to the manufacturer’s instructions for 45 minutes.
How often should you descale tankless water heater?
During a regular maintenance visit, a professional will descale, also called delime, your tankless water heater to make sure there’s no buildup around the heating elements. A professional should descale your water heater at least once a year.
How long does it take to descale water heater?
Exterior maintenance typically takes about 20 minutes. Flushing the water heater will take a little longer.
What happens if you don’t descale your tankless water heater?
What happens if I don’t flush out my tankless water heater? Mineral deposits may build up. This could cause a clog within the unit and may prevent normal heating activity. Your hot water could also fluctuate and overheat the system, impacting its efficiency.
How much does it cost to flush a tankless water heater?
It costs around $150 to flush a tankless water heater. You especially need it at least annually if you have well water with a lot of iron. That causes more sediment buildup. The process takes about a half-hour.
