Tankless Water Heater Annual Flush Routine

In order to get the full life from your tankless water heater you must flush it regularly to clean the internal boiler from scale build up. In this video I'll show you how to do this simple process on a Takagi unit that's a year old. -Matt Risinger Principle of Risinger Homes an Austin TX based High Performance Green Builder and Remodeler

Category:

People & Blogs

Tags:

• Takagi
• Noritz
• Tankless Waterheater
• Tankless Heater
• Rinnai
• Austin Custom Builder
• Austin Remodeler
• Tankless Flush
• Tankless Scale
• Scale Build up removal
• Tankless annual maintenance
• Water Heater Maintenance

[ThePariss333]

DO I HAVE TO DO THIS, IF I HAVE A WATER SOFTENER?

[MattRisinger]

@ThePariss333 Excellent question. Best I can tell you is that it's not going to need flushed as frequently when used with soft water, but I'd still do it every 24-30 months to be safe. Matt Risinger

[nestorabc]

Are you trying to KILL YOURSELVES?? That unit you have is an OUTDOOR MODEL, and vents directly to the environment. You need a unit that vents through a flue to the OUTSIDE!!!!!

[MattRisinger]

@nestorabc This is indeed an outdoor model and it's mounted on the exterior of the house. It's located in the large crawl space under the house. The house is built on a rocky sloping lot and the water heater is located under the house next to a storage room built on that lower level. It's fully open to the outside air. Texas is a great climate to use these exterior mounted units. Thanks for commenting. Matt Risinger

[firejoey41]

Matt,

Does anything change in the cleaning process if you have a scale shield installed on your noritz tankless. Its a mounted descaler and the replacements cost around 80 dollars per year.Do you know what I am referring to. Thanks for your help.

[MattRisinger]

@firejoey41 I'm not familiar with that product. This flush routine featured in that video would run about $10 in supplies (White Vinegar) and about $70 for the pumps/hoses that can be reused. Seems like it would be less overall to flush your tank annually. Matt

[wzg8s7]

Thank you!

[TochSergio]

I never was told to do this. It's been 5 years and I notice the water isn't as hot. Can I do the vinegar for a longer time , or every month for a few months. Is the damage done irreversible?

[MattRisinger]

@wtowner911 Yes, excellent comment. I'm not sure I've made it clear but I like to run some clean water through the water heater after the vinegar and definitely run water through your pump/hoses. THanks, Matt

[wtowner911]

What about flushing after the white vinegar? Rinnai recommends it after cleaning.