How To Properly Flush A Tankless Water Heater! #plumbing #rinnai

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In this video, I show step by step how I flush and maintenance a Rinnai Tankless Water Heater. This process goes for any tankless water heater as long as you have flush valves installed. Also I repair an installation error on the exhaust condensation port.

Use the links below for material and equipment I use to flush tankless water heaters.

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[JeffsHVACAdventures]

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[azukark]

thank you! my plumber was charging me 300$ each year... now saving money for family vacations

[mtngrammy]

Thank you for making this such a clear step-by-step video! Maybe easy enough that even a near 80 year old lady could do it. I hope so.

[Ddronron]

Thanks so much for taking the time to show this great video and explain each step! This is extremely helpful and I really appreciate how slowly and methodically you spoke, which made it not only easy to follow, but a real pleasure. You did a fantastic job and certainly will help me and any others who want to flush our tankless water heaters.

[svenhodaka]

I like your post purge process after descaling. This ensures all the vinegar or descaling fluid is removed from your system and not flushed through your water system to the taps. Cleaning the in-line screen before and after the descaling is an excellent idea too. Great demo. Thanks 😁

[jolivares]

Dude, this video is amazing. Thank you so much. Just what I needed.

[memoreeze]

Thanks for the instructional video. Saved me from having to have a plumber do it and $350! 👍🏽

[michaelbullington]

Well done. The most thorough video on the subject that I've seen.

[buddha]

Just wanted to say "Thank You".. have seen several of these but NONE with the ATTENTION TO DETAIL as this one... did not even know that there was a 'FILTER" on the inlet side... very nice man.. Happy New Year 2024!

[Portageediggah]

Great great video. Thanks and God Bless you and your business

[Helmut-ew]

At the end of flushing I rinse first the system into a second white bucket to see how clean the outcomig water ist, then I open the house system and flush out of a nearby tap.Using White Vinegar I can go by the smell if anything is clean.BTW . After all done I rinse and flush my pump very good to get the internals cleaned out of any essit.Knowing that most installers are messy and ask to cut corners, I let the instalers just do what the law requiers and did the rest myselfe.

[mattro]

This was very informative. Much appreciated.

[testtest]

The one bit of advise i'd add is to only unplug it when it's firing. If you do this the valves will be fully open and it will descale more fully.

[joegioffre]

Thank you for the tutorial! Worked out perfectly. 😊

[jrh]

Good stuff another Job sorted, interesting and informative thanks 👍👍😃

[fbm]

Excellently communicated and shown!! Thank you.

[sohailahmad]

Hi, great video. I was wondering if this is still a DIY task even if you haven’t done a descale since the install? Got my house in 2017 new and hasn’t been done before. Read on a few comments for the Rheen tank that it’s better to let a professional do it. But mine is exactly like yours tankless.

[carlyy]

Do you think it would be ok to use a 1/2 hp pump instead? Already own one :)

[wyliecoyote.]

Is this process needed on electric tankless water heaters?

[NoName-beir]

I’m not getting a flush circulation when I plug the pump up. Does the power to the tankless need to be on ? I have pump hooked to cold inlet and valve open, house water valve off. Hot side to house off but out side flush valve open for an open loop.
Gas valve off also.
Never mind lol it’s circulating now.. with no power on, i started over and just must of missed something.. it’s flushing 😅now. Thanks for the video!!