For updated procedure go to kzread.info/dash/bejne/hahnmqV_mMzHeZM.html WARNING: Do not use the power switch to turn off unit, instead just unplugged or turn off the circuit breaker. This will prevent the internal valves from closing and bypassing the heat exchanger. For updated procedure go to kzread.info/dash/bejne/hahnmqV_mMzHeZM.html

Thanks for this video. Very helpful. The manual mostly made sense but this walkthrough really helped bring it all together.

@cfldriven

4 жыл бұрын

The big gotcha is not using the power button to shut down the unit, instead unplugging it or shutting down the circuit to it. Thanks for watching.

@RitterTX

4 жыл бұрын

cfldriven thanks for the tip. I did also watch the updated video that you made. Thanks again.

I bought this water heater kzread.infoUgkx8G49mV71sAzUl9shXyLW-r3XgHH9EVh1 for use in my bus conversion. I installed it under my kitchen sink and it is fed by a high efficiency on-demand LP water heater. It is both a backup hot water source as well as a water saving device since we have hot water on demand rather than having to wait for the gas on demand water heater to finish its ignition cycle. I decided on this water heater due to the fact that it only draws 1300watts when it's ON instead of the 1500 watts that most Water heaters this size draw. In an RV a couple hundred watts can be a big deal. With very low standby losses, I don't have to worry about excessive power consumption. When propane is not available for our gas water heater, in conjunction with our low flow shower head there is enough hot water available to shower, albeit we won't be taking "hotel showers." Also very happy with the recovery rate of this water heater. Granted, it is quite small, but it does exactly what we need it to do.

@cfldriven

10 ай бұрын

Angel, that is great news, but the manufacturers instructions call out for a dedicated circuit for the water heater. They do provide for several water heaters to be connected to a single circuit, providing it does not exceed the rated service load. Thank you for watching.

Utilized procedure and it worked very well. Thanks.

@cfldriven

7 жыл бұрын

Glad you found it useful. An updated video is now available kzread.info/dash/bejne/hahnmqV_mMzHeZM.html

Great video and instruction! Thanks!

@cfldriven

6 жыл бұрын

Make sure to check out the updated video for shut off procedure, as mentioned in notes just unplug or cut power, but don't use the power button. kzread.info/dash/bejne/hahnmqV_mMzHeZM.html

So helpful! Thanks for creating and sharing this!

@cfldriven

Жыл бұрын

Shalom, glad to hear the video was helpful. There is also an updated video at kzread.info/dash/bejne/hahnmqV_mMzHeZM.html Thank you for watching.

Thanks for posting the video. I have had the same Rheem tankless water heater for a couple years now and have not flushed out the scale and lime yet. I am concerned about recirculating the scale back through the pump and coil system. Is there any visible scale left in the bucket after the process? If so, would you recommend placing some kind of screening barrier (i.e. pantyhose filter on the outlet) between the two flows? Also, would a 300 gph submersible fountain pump be sufficient? Thanks again!

@cfldriven

7 жыл бұрын

The solution dissolves it, so there isn't a need to do more. At 300 gph we are talking about 5 gpm which for the recommended run time should be sufficient.

Some additional information from a plumber: 1) The gas tag on the gas inlet is usually just covering the testing port to test gas pressure and most of the time has nothing to do with adjusting or fine tuning the tankless. (At least that’s my understanding with all the training I have gone through. 2) the condensation drain on a lot of those units (not Navien) can be capped like that if they are horizontally vented within a certain distance. They must have a drain attached though if they are vertically vented. 3) Additionally to cleaning out that cold inlet screen you should have the tankless flushed/descaled yearly and if your water is “hard” (has a lot of calcium and magnesium causing scale buildup) you should have a form of water treatment to retain most warranties.

@cfldriven

Жыл бұрын

Thank you for sharing your insight on this important topic. An updated version of this process is available at kzread.info/dash/bejne/hahnmqV_mMzHeZM.html which includes not using the power switch.

It’s a great video,FYI turn gas off to unit aswell

@cfldriven

3 жыл бұрын

Rheem also recommends shutting off the gas, I tend not just because the unit is de-energized, but nothing wrong with taking all the proper safety precautions. Thanks for watching.

Do not turn the unit off. That closes the valves inside the heater. You will circulate the vinegar without flushing the heating exchange. Read the manufacturer manual closely. You should unplug the unit instead.

@cfldriven

7 жыл бұрын

Thank you so much for the correction. Next flush i will update video.

Why do you need to run a hose from the hot water side to outside when finished to flush vinegar out? Why not just return everything to normal and open a hot water valve in kitchen sink and let the vinegar flush out and drain there?

@cfldriven

7 жыл бұрын

Did not want vinegar going into my plumbing system when I could easily flush it directly from the tankless unit.

@victory21222

4 жыл бұрын

Just open everything back up and flush with your incoming cold water and open all hot water fixtures to the bath and kitchen. I'm a plumber and you are correct Kelly.

"WARNING: Do not use the power switch to turn off unit," is this the power button on the remote control that you are referring to? i flushed mine today, i just cut the power at the breaker box without turning the unit first using the remote control. but i didnt see much scale in my bucket when i was done?? my remote and my heater are on the same circuit so when i shut off the breaker, both turn off simultaneously. does that cause my flow to bypass the heating elements?

@cfldriven

7 жыл бұрын

Yes it is the power switch on the Remote Control panel. By cutting the power at the circuit breaker you prevented the internal valves from closing, which is a good thing. Had you powered the unit down via the Remote Control panel the internal valves would have closed thus bypassing the tubing in the heat exchanger. I have updated the warning. Thank you for your input, much appreciated.

I have been working on a tankless water heater that doubles as the boiler for the hot water baseboard system. I can't pump the vinegar through the heater and someone has told me there is a special (3 way?) valve inside the heater that keeps the two water flows separate and that it isn't opening. What can I do in a situation like this, if there's anything to do?

@cfldriven

7 жыл бұрын

Peter I would check with the manufacturer of your unit. BTW how do you like the system for heating? What brand? I am thinking I will need one in NC.

@victory21222

4 жыл бұрын

All you need is 2 valves on the tankless like the one in the video. After cleaning just hook up a water supply to the cold water inlet and flush the vinegar into a pail. Then just close the flush valves and open the valves to their normal operating position.

Thanks!

@cfldriven

Жыл бұрын

Selta, thank you so very much for your support, very much appreciated.

Don’t forget to remove the filter on the cold water side and clean it also.

@cfldriven

2 жыл бұрын

Thank you for that important reminder, here are the details kzread.info/dash/bejne/ZGZ-s8qBXcvKppM.html

The green in your water might be the rubber hose that is not rated for acids.

@cfldriven

2 жыл бұрын

Prolong use of vinegar in a rubber hose can lead to softening. This why you shouldn't use vinegar to clean out your clothes washer.

Incredible video! Thanks for sharing your knowledge! We bought a home with a Rheem and in following your instructions, noticed that this installation doesn't appear to have what you refer to as "service vales". How might I go about flushing this without them?

@cfldriven

Жыл бұрын

Without the service valves you would have to disconnect the inlet and output lines. At which point you might as well add the service valves. It a shame they weren't put in at installation.

@Steven-wp4wu

Жыл бұрын

@@cfldriven Apologies for the delay - thank you for the response! It appears there are service vales, but no means of turning them off as in your video. Is that just a poor install where a step was skipped (no means of turning off the feed to the service valves)? This set up looks identical to yours with the exception of missing those smaller handles to cut off that water feed. Wish I had a means of sharing a photo. Appreciate your channel and sharing your knowledge!

@cfldriven

Жыл бұрын

@@Steven-wp4wu Some tankless units include services valves, but both of my Rheems did not. Each time I had to instruct the plumber to include them as part of install. Funny thing is the installation instructions call for them to be put in. It is interesting that the service valves from 4yrs ago only have one valve per side as oppose to the double valves in the video.

@Steven-wp4wu

Жыл бұрын

@@cfldriven What our unit has is the service valves (with port caps), but not the handles to turn them on/off to isolate the system. Does that mean this was installed incorrectly?

@cfldriven

Жыл бұрын

@@Steven-wp4wu Steven, to flush the tankless it must be isolated from the rest of the house plumbing system. Is there a cold water shut off valve leading to the tankless and a shut off valve on the hot water side? If there are in close proximity to your service ports it could work.

Thank you for all of your help. I got everything I needed and I did this yesterday. It wouldn't work for the life of me. I called Rheems and they were of no help. What finally made it work was that my red/blue levers needed to be in the OFF setting. That was the only way to get the vinegar to flow through the unit. Is this very odd?

Isn’t that a little green filter above the cold water intake that needs to be cleaned?

@cfldriven

Жыл бұрын

Yes, depending on the quality of your water it should be checked on a regular bases. Here is a video on that procedure kzread.info/dash/bejne/nIVru5iumqnIh8o.html Thank you for the question and for watching.

So I followed your replacement video to a T and when I run the pump nothing comes out of the hot water side. I can lift the thermal relief valve and it will flow out of that, but not a drop out of the hose side. Do you need to have the hot water running in your house when you kill the power to it to keep the internal flow control valve open? Because if you just power it down with the unit not running the valves would already be closed. I don’t get it.

@cfldriven

2 ай бұрын

For updated procedure go to kzread.info/dash/bejne/hahnmqV_mMzHeZM.html You need to turn off power to the unit, as opposed to using the power switch.

@allenemiesforeignanddomest3320

2 ай бұрын

Thanks for the reply. I did follow the replacement video and I have no water coming out of the hot side with the pump running. The unit was not running when I powered it down via the breaker so I’m wondering if there’s an internal valve that is remaining closed? Should I have the hot water running inside the house when I cut power maybe? This is a non-condensing unit BTW.

@cfldriven

2 ай бұрын

@@allenemiesforeignanddomest3320 With the unit powered on and the power turned off from the breaker the bypass valve should stay open. (No need to run water) You can test this by allowing water through the inlet service valve into the tankless and it should flow out of the outlet service valve. If that works then check connections to pump to make sure your pumping into inlet side.

Can powdered deacalers be used instead of vinegar on Rheem units?

@cfldriven

2 жыл бұрын

Rheem only recommends vinegar.

Hello, What kind of pump do you need to get? Did I miss a link? I'd love to know where to get the products needed so I don't have to pay $130 for the service and $159 for the visit (this is the only company that I can use or it negates warranty). Thank you!!

@stephaniebast1729

6 жыл бұрын

Also, I haven't done this before and our tank is 4 years old. Do you think I should do it more than once? Thank you!

@cfldriven

6 жыл бұрын

Stephanie, thanks for posting a link. The pump I use was a gift so I have no idea what it cost. In your case I would replace the solution and run the pump one more time. After that at least once a year. Good luck and thank you watching. If you can subscribe, thank you.

@stephaniebast1729

6 жыл бұрын

Thank you for your reply! One more question: I have 2 garden hoses (they're coiled). My tank is outside and close the ground so I have a feeling they'd be fine, but I'd need to make one female to female, yes? Would this kit do? www.amazon.com/Superior-Pump-99555-Plastic-Universal/dp/B005MKGQGA/ref=pd_bxgy_60_img_3?_encoding=UTF8&pd_rd_i=B005MKGQGA&pd_rd_r=BSZQERRT16CQRKA1YC10&pd_rd_w=LkFlc&pd_rd_wg=Vur4x&psc=1&refRID=BSZQERRT16CQRKA1YC10 And if they garden hoses won't work, would this? www.amazon.com/Little-Giant-SPDK-Discharge-24-Feet/dp/B004XQYK76/ref=pd_bxgy_60_img_2?_encoding=UTF8&pd_rd_i=B004XQYK76&pd_rd_r=BSZQERRT16CQRKA1YC10&pd_rd_w=LkFlc&pd_rd_wg=Vur4x&psc=1&refRID=BSZQERRT16CQRKA1YC10 Thank you!

@cfldriven

6 жыл бұрын

Stephanie, you can try the following link for a connector or any hardware store. Especially like an Ace or Tru-Value. You don't want too long of a hose because you'll need to push the solution through the entire length and the pump will have to work harder. www.grainger.com/product/1P724?cm_mmc=PPC:+Google+PLA&s_kwcid=AL!2966!3!166588899559!!!g!82166687037!&ef_id=WBoTcAAAAWH28ffZ:20180131025836:s&kwid=productads-adid^166588899559-device^c-plaid^82166687037-sku^1P724-adType^PLA

How about the gas line, does that need to be turned off?

@alarce129

4 жыл бұрын

No need to turn off the gas. Even without power there is no way for gas to flow. Thanks for the question and for watching.

Maybe I missed it, but you never said yo turn off the water going into the unit. (Pre-bypass valve)

@cfldriven

2 жыл бұрын

You are absolutely correct, since the service valves include shut offs for the incoming and outgoing lines plus to each of the ext ports there no need to shut off water to the rest of the house. Of course if one feels more comfortable it can be done. Thanks for bringing up a good point.

Is there any need to turn off the Gas Valve in this process?

@cfldriven

3 жыл бұрын

It is part of the official Rheem procedure, with the power off the unit can no longer operate or monitor the internal gas valve and thus closing the external gas valve avoids any possible leak.

How often do you need to descale the system?

@cfldriven

7 ай бұрын

Frequency of descaling will depend on you amount of minerals in your local water and whether there is a water softener. In southern California it was once a year. Where I live now the water has a lot less minerals so I can get by with once every 3 years. Thank you for watching.

I got a code 29 , will this take care of that code 29 ??

Also, I only have 1lever for the red/hot and 1 lever for blue/cold. Not 2 like you. I'll see if I can share a picture. (It won't let me add a picture. And something is wrong with the "reply" on this site right now, I can only comment, so apologies for new comments).

THIS IS NOT CORRECT AT ALL!!!!!! if you turn off the remote control to the unit before cutting the power you will activate bypass switch and the whole process will not work. you will end up wasting your time and vinegar. DO NOT USE THIS VIDEO

@cfldriven

6 жыл бұрын

Yes you are correct, as I had already noted in the description and even provided a link to an updated video. The reason for leaving this video up is it shows the process and provides useful information, including the correction. Thank you for your feedback.

@victory21222

4 жыл бұрын

You beat me to the punch Kristi. You are 100% correct. People that are not in the trade should not be making these videos and wasting peoples time and money.

@tonyt0906

3 жыл бұрын

Crap, now I have to do it all over again, I followed this video, and didn’t read through the comments, as a neighbor shared it with me. Off I go to get more vinegar. Smh

@allenemiesforeignanddomest3320

Ай бұрын

I’ve tried killing power at the breaker, turning the hot water on inside the house and then killing power and nothing works. Water will not flow!!! There is something about these Rheem’s they are not sharing to get the flush to flow through the heat exchanger.

One problem...inlet cold water valve is closed when power is disconnected....now what??

@cfldriven

4 жыл бұрын

Inlet valve closes if you press the power button, if you just pull the plug or open the circuit the internal valve remains open.

@insideoutsideupsidedown2218

4 жыл бұрын

@@cfldriven that's only if it on and running. I have a bank of 7. I flip the t&p valve then close the outlet on the hot water side while the unit is running. Then just unplug and the water inlet valve stays open. Then I start the flush. Then I have to let the system cycle to the next one, and do it again.

@cfldriven

4 жыл бұрын

@@insideoutsideupsidedown2218 Thank you for sharing your experience.

How often do you need to do this?

@cfldriven

7 жыл бұрын

Once a year

@rkneti

2 жыл бұрын

@@cfldriven Nice video, thanks! If a water softener system is installed, do we still need to perform descaling every year?

@cfldriven

2 жыл бұрын

@@rkneti Depends if the water softener is before or after the tankless unit. If before you can go longer, in my area I have soft water and will be flushing every three years whereas my prior home had hard water area and it was every year.

I have a 1800 gph 1/4 superior submersible pump? Is this an adequate pump to use?

@cfldriven

5 жыл бұрын

As long as you don't exceed the max pressure rating for the unit you should be fine. You just need enough pressure to flow the solution through the coils. According to the manual "The pressure rating of the relief valve must not exceed 150 psi (1,034 kPa) or the maximum working pressure of the water heater. (See the rating plate on the water heater.)

@insideoutsideupsidedown2218

4 жыл бұрын

Yes

That is one of the ugliest installs ive seen. Flex water supplies and flex gas line is pure laziness. Correct way to flush a tank tho!

@cfldriven

6 жыл бұрын

Actually in California flex lines into appliances is the way to go due to seismic activity. The problem with replacing an old water heater with most tankless unit is the connections are on the bottom. Definitely worth doing in new construction or remodeling, otherwise installation can be challenging. Thank you for commenting.

@cfldriven

6 жыл бұрын

Good question, it all depends on the type of shaking, the amount of shaking and the duration. It may stay bolted or it may be stressed beyond limits, causing it to dislodge or fall. The flex lines are per code. In the Northridge quake the top strap on the water heater failed and the unit tilted. Only the flex lines kept it from falling over.

@seanmulholland7597

4 жыл бұрын

James Webb no shit,‘horrible

ya fuck checking the filter right?

Time to retire this video. The process is correct, with A BIG CAVEAT regarding the power shut off procedure. You should really remove this video and just leave the fully correct version online. Your "WARNING" segment in the description does not even show up unless someone clicks "show more" and you make no mention of it in the video. You are doing your subscribers and anyone who happens to view this a disservice.

@cfldriven

2 жыл бұрын

Thank you for the feedback, we have added additional notifications.

@JoeCavallo

2 жыл бұрын

@@cfldriven There is no notification when you view this on a mobile device that does not show expanded captions by default. Unfortunately, you are doing more harm than good with this video.

Thanks!

@cfldriven

6 ай бұрын

Thank you so much for watching and the financial support, it is very appreciated. Make sure to check out the updated video. kzread.info/dash/bejne/hahnmqV_mMzHeZM.html