Over time, a gas tankless water heater may accumulate mineral build-up which can erode the walls inside your gas tank's heating chamber. 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 and result in it damaging the system - which could result in costly repairs or replacement.
To properly maintain, clean and flush your gas tankless water heater, it's important to flush those mineral deposits at least once a year.
