In the "Common Water Heater Myths Answered" episode of Ask This Old House, the hosts delve into the crucial question of when it's time to replace a water heater, also referred to as hot water tank. They distinguish between electric and gas water heaters, elucidating that electric variants generally last 12 to 15 years with lower maintenance requirements, while gas counterparts typically endure 10 to 12 years but necessitate more attention.
As water heaters approach the 10 to 12 year mark, homeowners are advised to evaluate the potential risks and contemplate upgrades, such as transitioning to tankless water heaters. However, the hosts emphasize that installing tankless water heaters can be a substantial undertaking.
One key maintenance practice highlighted is the routine replacement of the anode rod in glass-lined steel tanks every 2 to 3 years. This sacrificial component prevents corrosion and fusion with the tank, significantly extending its lifespan.
The hosts also underscore the importance of periodic draining of the water heater every few years to eliminate mineral buildup, promoting a longer tank life. Additionally, in the event of a leak, homeowners are encouraged to promptly turn off the water heater, relieve pressure, and calmly assess the situation. The hosts reassure that most leaks start as small pinhole leaks and can be addressed without panic. This informative episode dispels common myths surrounding water heaters, empowering homeowners with knowledge to make informed decisions about their water heater maintenance and replacement.
