I have the next Rheem model up. 3 - 40amp breakers to match my tankless oil boiler output. When the spring comes I shut down the boiler and maintenance it and turn on my electric water heater. Very impressed. The truth, I’ve noticed the bill go up about 20 bucks but I don’t use the tankless during the winter.
Tankless heaters will last longer if you put cleanout transfer valves for flushing the heater with a vinegar/water mixture to descale the unit. I do this yearly.
@@ronaldvanostrand5482 absolutely. I ended up putting out an updated review where I added isolation values and deacaled the unit. A must for these types of water heaters. Thanks for stopping by and commenting 🙂
Jeff, Thanks for the review. As a retired master electrician I would urge you to wrap the white wires in red electrical tape. This will signal to anyone who follows you that these are in fact HOT wires when electrified. White represents Neutral wires. Your present wiring without red colors will confuse all but professionals who know how to spot non-professional installs. Safety first, please.
Thank you for creating the video. Completed the installation of my Rheem 11series for my bathroom shower in my office. Your video clarified a few questions I had.
Great info! A couple tips on the electrical. You have to re- identify the white conductors with red or black tape at both the heater and in the panel. Also the ground ( bare) wire is not connected to the neutral. It’s landed on the equipment ground in the panel.
I'm glad I found this video. You answered a few questions I've had. First, it looks like you're using pex and that's what I want to do. I know I need to check my current regular water heater power requirements, but I'm hoping I can use the same circuit. I'm pretty confident that I won't need to use much pipe because of the existing pipes. But I need to study it. With only 2 of us in the house I think one of these will take care of our needs.
This was a pretty quick and easy install. In this video, I did a quick setup to get hot water quickly (my tank stopped working). I later went and did a more professional install. Check that out here: th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
Bought this exact model for a single wide I reacently bought. I am going to be redoing the entire water system, which is currently galvanized steel and copper, with bits and pieces of other materials here and there. Doing everything in PEX-A due to the material's ability to expand, for piece of mind with frozen lines having a lower chance of bursting.
I would appreciate if you went into more detail into the electrical connection. I can't believe these contractors want $4000 dollars to install this water heater. Thank You, I love your video, it's going to save me some money
Although not electrical, that you were looking for, this video has other important updates for the installation. Thanks for stopping by and commenting 👍 th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
Ok for future reference to anyone who sees your video. They must know that the unit requires 2 40 amp dual pole breakers because each chamber requires 40 amp at 240v. In order to obtain this you need to connect both black & white wire to your dual pole breaker. Then respectively connect them to the system.
Getting propane is tricky. I have 2 Rinnais, one for hot water the other as a boiler for the radiant floor. They are wonderful as long as they have propane, DA! I want a backup tankless electric water heater just in case. Great video. Thanks. In the country off Virginia's Chesapeake Bay.
I had this unit installed on the outside my house and it has lasted for about 20 months. It has stopped heating constantly since the last descaling. I have been given a lot of advice about what I should do and it is all expensive. Considering the price of everything, I think I am going to just change it for the same one. With this video, I think I can do it myself. So, wish me luck and thank you.
Don't install it outside your house, they are not weather proof - that's why your last one failed. These need to be installed indoors. This model does not require a vent either, so you can place i pretty much anywhere.
I’m installing the Rheem 13KW heater. I’ve got low flow showers and I’m willing to restrict folks to one shower at a time. I’m still in the dark about my water connections. There are male 5/8” compression fittings into and out of the heater. They included two 5/8” sleeves and two options: I can use a sleeve and female compression fitting with 5/8” copper but that’s out. I have well water that’s slightly acid and I’m replacing all the copper pipes now. I’m going to use an acid neutralizer but no copper - all plastic. The other water connectors are a male compression to 1/2” male NPT. I can buy flex hoses with 1/2 NPT so I prefer that option. I called Rheem to ask if I could use just the sleeve or do I need to put short pieces of 5/8” copper tube inside the sleeves? They just said to “Ask my plumber.” I’ll just have one 60 Amp breaker with #6 wire. Rheem shows how to wire the breaker but doesn’t even mention opening the unit. There are two sets of small screws. One set didn’t seem to allow anything to open. The other set let me remove the entire front of the unit. Pity they didn’t bother to tell us which to try. It looks nice inside though. Neat! Ok. Back to it.😊
Several years ago I thought about putting a natural gas instant water heater. After researching it further I decided to stay with the old 40 gallon natural gas heater. This what changed my mind. 1. I would have to have a larger gas line from the meter to the house. I would have to upgrade my natural gas meter. Just upgrading the meter would cost $ 625. The cost to upgrade the natural gas line from the meter to the house and to the instant water heat would be several thousands more. 2. I would have to install a water softener. That would cost anywhere from $ 2,000-$3500. Water softeners have to be maintained with chemicals in order to work. Our water in Houston is pretty hard. Scale, lime and other deposits would plug it up over the years.
I thought about going with gas too, but the upgrade cost wasn't worth it. I've been impressed with this little electric unit. Thanks for sharing your thoughts! 😃 👍
@@Jeffreviews4u everytime I talk to a plumber that do not recommend electric tankless of any size they always say people complain about it not providing hot water in a shower or tub, how's your experience with this one.
You don't need a water softener, I install them daily. Unit just needs to be descaled once a year. Also you don't need to "upgrade your meter", just an individual 3/4" gas line to the tankless OR If your gas system is already capable of adding the added btu then you don't need to do anything besides update a small portion of 3/4" gas line that was branching off of to the old water heater.
I’m in Charlottesville and installed a Rheem gas unit in my house. The first month that I had it my gas bill went down $39.00. No more keeping a 40 gallon tank full of water hot. And I always have enough hot water.
You mentioned another brand with plastic inlet and outlet are you referring to the A.O. Smith model? I’m probably one of the few that have both the Rheem 18 kW and A.O. Smith 18 kW. I’m currently using the AOS which according to them lasts longer due to the way the heating elements draw electricity. I like the Rheem because you can turn it on and off and like you said the display will change when it’s in use.
Yes, I looked at the AO Smith model as well... didn't have great reviews and the connectors were made of plastic. I also think it was a little more expensive. I've been pretty impressed with the Rheem. Thanks for stopping by and commenting 👍
@8:49 you mention the E5 code. I think the E5 is actually an error that is letting you know that the water temperature that you have set is not being reached. Typically, due to excessive flow rate. Meaning, due to high water pressure (high flow rate) the water is not staying in the element long enough to reach the desired temperature. So the fix would be to install the proper flow regulator and/or lowering the desired temp.
@@Jeffreviews4u I have this same unit and was looking for info regarding the E5 error. The TH-cam algorithm is still serving me content related to this unit. Thought I would share what I learned about the E5 issue on your video when I saw that you mentioned it.
@@Jeffreviews4u You might also set it lower to the anti-scald temperature of 120 degrees, possibly lower, most appliances and spigots don't need to be that hot.
Hahahaha!! This exact brand and size is a POS!!! 💯 Displaying E5 is all it’s good for and that’s because I live in the south in Texas with hotter climate and this unit can only run sinks literally so even though it’s brand new it coming off the wall because my new unit has arrived and didn’t give Rheem any money again. Fool me once shame on me, but not again cuz I bought a different brand with better warranty 💯
@@mattcradic499 I have not had any issues with the hot water running out. 10 minute showers. No issues. Hope this helps. Thanks for stopping by and commenting 🙂
Years ago I had an Aqua Star the oil company installed it ( it was propane) I'm sure they have greatly improved since ( 20+ yrs ago ) the concept is a great one .
Great coverage of this Jeff and I've learned alot from your video and the many good comments posted. My old gas heater is just that, 'old', so this gives me some very good ideas and information when the day .... oops, don't want to say it out loud!! Thanks Jeff.
Good info. Thanks! Quick tip: don't use Teflon with those fittings. It doesn't provide any backup protection and only prevents you from getting the connection tight enough to prevent leaks like you had.
My system is set up the way you have it in the video. I'm trying to figure out how to get it flushed because my hot water pressure is low. I don't have an isolation valve on it. Can you please give me some advice? I have had several plumbers come out and they are saying different things and I can't get it flushed.
No, I used them at the time for a quick easy install. I ended up putting out an updated video showing how my final install looked. Thanks for stopping by and commenting
Jeff, you stated you connected one white wire to one side of the breaker and the black wire to the other side. My understanding is it doesn't matter what side the white or black wire goes on the breaker, because both wires supply power to the unit. Do I have it wrong? or that's your preferred method. My second question is which unit would you recommend the Rhem 18KW of the Theromate 18KW. Thank you for your time.
Hello Jeff, I have a question. If I'm installing a 27kw rheem tankless water heater will I need three 8/2 wires and three 40amp breakers to get it hooked up correctly?
Hey there, my recommendation is to always consult an electrician, as i am not one. I checked outthe HD website, it looks like the 27 kw unit calls for 3 double-pole 40 amp breakers and 3 separate 8 AWG wires.
Great video. A neighbor was just quoted $5000 to replace his with a unit that costs $1500. I figured since it is a replacement it should be maybe 2-3 hours of labor ... which would amount to about $1100+/hr. What am I missing? Is it really that difficult to replace a unit?
I had this exact unit installled in my familys cabin 5 months ago, it worked great up until about 3 weeks ago. Granted we are on a well, and have hard water, but we literally take this thing apart at least twice a day, clean out the inlet impeller, clean the inlet screen, put it all back together again, it works for a few hours and then stops. It doesnt show any codes, just a trickle of hot water, thats it. Not only that but our cold water only trickles too. I understand that unless there is a huge scale buildup this unit shouldn't affect my cold water, but its happening. We have no leaks, we upgrated everything from copper to Pex, had a 200amp breaker installed, I've dug up my main water line that goes into the house, no leaks, ive had a plumber come out and check it out, nothing. My girlfriend soaked all our airratiors in vinegar overnight, no change. Ive spoken with Rheem tech support 6 times and all they can do is loosely troubleshoot it for you and send you a manual on how to fix it, my unit was 2 DAYS out of date so nothing was covered, can't return it. The only positive thing is that i live on a lake and can take baths in it. Any input would be an enormous help. Thanks
@@Jeffreviews4u thanks for the reply. I am descaling the unit now. Within 60 seconds there was already noticeable sentiment. I initially bought a 1/3 pump that seemed to be too much as it was spraying out of my inlet hose. Went back to town and bought a 1/6 that seems to be working. Im thinking let it cycle for 2 hours?? Then afterwards should I cycle clean water through the unit?
It doesn’t seem to be wired correctly per diagram… diagram shows two double breakers with each wire set on different breakers…. Is this necessary since there are two elements?
One set of wires goes to one side, and the second set of wires goes on the other side. They shouldn't be mixed. You are correct in saying there are two double pole breakers. Thanks for stopping by and commenting 👍
Shark Bite. Honestly, even though Shark Bite is expensive compared to regular fittings, it's well worth it. I have had issues with getting other fittings just right, but I have never had an issue with Shark Bite hoses, valves, or fittings getting in place or leaking
I agree, I had no problem paying the premium price for something that made my job a lot easier. They are very convenient. Thanks for stopping by and commenting 👍
I was disappointed to see how you ran the electric. You would never simply jam the plastic conduit into a sharp metal hole. At the very least, you would put a 1/2" or 3/4" romex connector there. I was only looking for a how to video to see if the installer was using liquid tight flexible wiring/ conduit, connectors. I only mention this because people shouldn't think its ok to simply put the conductor through the unprotected metal hole.
This install was to get hot water running... we went back and corrected issues. Check this out: th-cam.com/video/Yt6f2tceRgs/w-d-xo.htmlsi=F3pTfqtsX4oHjvHB
Always consult an electrician if you're not 100% sure what to do. In my case I had black and white on one breaker and black and white on the second breaker. And although I did not show it in this video, I did reconstitute the wires so they were both black. Thanks for stopping by and commenting 👍
I want to get one. Im tired of all the hot water being gone by the time its my turn in the shower. I also have solar so I guess I have to see if my panel needs upgraded.
Awesome video! I'm about to install one of these myself. Just out of curiosity, how much extra do people pay in electricity per month with this system?
Thought about going electric tankless (no gas service here) but decided to go with a rheem hybrid water heater instead just over a year ago (heat pump + electric tank water heater). Far easier run on a home solar+battery system or a generator than electric tankless and has almost the same operating cost as gas tankless water heater. (Massive down side is that it cost more upfront and you'd need a condensate line running to a drain or outdoor just like with an ac.)
Nice looking install except for one thing. You need an electrical connector where your wires enter the water heater to protect wires from damage. I am a licensed electrical contractor
I’ve been using nothing but the braided type hoses since they came out. The reason yours leaked was because the connection to the water heater was not tight enough.
Jeff thanks for yr video am not sure if a water softener was used to protect the unit from sediment caused by chlorine that's the mistake a lot of plumbers make in installation of these units
The E5 is actually an error that is letting you know that the water temperature that you have set is not being reached. Typically, due to excessive flow rate. Meaning, due to high water pressure (high flow rate) the water is not staying in the element long enough to reach the desired temperature. So the fix would be to install the proper flow regulator and/or lowering the desired temp.
I except that you used electric to heat the water. I understand that gas heats better and faster. I used to have an electric system in each room above each sink or showers. I loved it.
Have one, Tempra 27, hooked on my well ( living rural community), works great. Love it. My plumber did not recommend it for a whole house system rural, said it would not work . He was WRONG (Iblame it on working old school). Just a comment on your install: it looks great but around here, a pressure safety switch is mandatory on the hot side. Good work. I will be installing the exact same system as yours at a friend's house in a few weeks. Keep posting.
I really need a water heater at the moment we have been boiling water for quick showers but can't afford the big boilers ATM I just wish I didn't have to do the electrical part I'm not experienced to do that 😢 kinda making me question it and my abilities to accomplish this.
Updated install: th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
Descale the unit: th-cam.com/video/NNJEGX4AApo/w-d-xo.html
Did you use a proper connector for the conduit for the electrical so you're not running through sharp metal?
Does the 18 have a rest button
I have the next Rheem model up. 3 - 40amp breakers to match my tankless oil boiler output. When the spring comes I shut down the boiler and maintenance it and turn on my electric water heater. Very impressed. The truth, I’ve noticed the bill go up about 20 bucks but I don’t use the tankless during the winter.
Tankless heaters will last longer if you put cleanout transfer valves for flushing the heater with a vinegar/water mixture to descale the unit. I do this yearly.
@@ronaldvanostrand5482 absolutely. I ended up putting out an updated review where I added isolation values and deacaled the unit. A must for these types of water heaters. Thanks for stopping by and commenting 🙂
Jeff, Thanks for the review. As a retired master electrician I would urge you to wrap the white wires in red electrical tape. This will signal to anyone who follows you that these are in fact HOT wires when electrified. White represents Neutral wires. Your present wiring without red colors will confuse all but professionals who know how to spot non-professional installs. Safety first, please.
This install was a temporary fix. I had it reworked to re-identify the wires on both sides. Thanks for stopping by and commenting 👍
That looks surprisingly simple! Much easier than replacing my gas water tank!!
Thank you for creating the video. Completed the installation of my Rheem 11series for my bathroom shower in my office. Your video clarified a few questions I had.
Glad the video was helpful. Thanks for stopping by and commenting
Great info! A couple tips on the electrical. You have to re- identify the white conductors with red or black tape at both the heater and in the panel. Also the ground ( bare) wire is not connected to the neutral. It’s landed on the equipment ground in the panel.
Thanks for the tips!
I'm glad I found this video. You answered a few questions I've had. First, it looks like you're using pex and that's what I want to do. I know I need to check my current regular water heater power requirements, but I'm hoping I can use the same circuit. I'm pretty confident that I won't need to use much pipe because of the existing pipes. But I need to study it. With only 2 of us in the house I think one of these will take care of our needs.
@Voartist You will need 2, 40 Amp, double pole breakers (i.e. two circuits) to wire this particular model.
Thanks, just starting my research. My tank heater is nearing 25 years old, so before it fails need to sort this choice out.
This was a pretty quick and easy install. In this video, I did a quick setup to get hot water quickly (my tank stopped working). I later went and did a more professional install. Check that out here: th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
Bought this exact model for a single wide I reacently bought. I am going to be redoing the entire water system, which is currently galvanized steel and copper, with bits and pieces of other materials here and there. Doing everything in PEX-A due to the material's ability to expand, for piece of mind with frozen lines having a lower chance of bursting.
I've been impressed with mine. Very convenient and I like the on demand aspect. Thanks for stopping by and commenting 🙂
I would appreciate if you went into more detail into the electrical connection. I can't believe these contractors want $4000 dollars to install this water heater. Thank You, I love your video, it's going to save me some money
Although not electrical, that you were looking for, this video has other important updates for the installation. Thanks for stopping by and commenting 👍 th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
The tankless water heater seems very nice. Good video, thank you. 💕
I've been impressed with it so far. Very convenient and not that difficult to install. Thanks for stopping by and commenting 👍
Ok for future reference to anyone who sees your video. They must know that the unit requires 2 40 amp dual pole breakers because each chamber requires 40 amp at 240v. In order to obtain this you need to connect both black & white wire to your dual pole breaker. Then respectively connect them to the system.
I was waiting to see how he hooked those wires up to the breaker..but he never showed it in the video. Very disappointing.
Getting propane is tricky. I have 2 Rinnais, one for hot water the other as a boiler for the radiant floor. They are wonderful as long as they have propane, DA! I want a backup tankless electric water heater just in case. Great video. Thanks. In the country off Virginia's Chesapeake Bay.
Fellow 716'er here. Thanks for the awesome vid!
Go Bills! Check out this updated tankless water heater video. th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
@@Jeffreviews4u I watched that! Thanks! Just got my Rtex-18 installed today! Your vid was a big help! Thanks again!
Got mine installed today thanks to your video!
I had this unit installed on the outside my house and it has lasted for about 20 months. It has stopped heating constantly since the last descaling. I have been given a lot of advice about what I should do and it is all expensive. Considering the price of everything, I think I am going to just change it for the same one. With this video, I think I can do it myself. So, wish me luck and thank you.
Don't install it outside your house, they are not weather proof - that's why your last one failed. These need to be installed indoors. This model does not require a vent either, so you can place i pretty much anywhere.
I don't have one with love to get one installed in my house I heard they was great
I've been impressed so far. I like that I was able to get rid of the 50 gallon unit. Thanks for stopping by and commenting 👍
I’m installing the Rheem 13KW heater. I’ve got low flow showers and I’m willing to restrict folks to one shower at a time. I’m still in the dark about my water connections. There are male 5/8” compression fittings into and out of the heater. They included two 5/8” sleeves and two options: I can use a sleeve and female compression fitting with 5/8” copper but that’s out. I have well water that’s slightly acid and I’m replacing all the copper pipes now. I’m going to use an acid neutralizer but no copper - all plastic.
The other water connectors are a male compression to 1/2” male NPT. I can buy flex hoses with 1/2 NPT so I prefer that option. I called Rheem to ask if I could use just the sleeve or do I need to put short pieces of 5/8” copper tube inside the sleeves? They just said to “Ask my plumber.”
I’ll just have one 60 Amp breaker with #6 wire. Rheem shows how to wire the breaker but doesn’t even mention opening the unit. There are two sets of small screws. One set didn’t seem to allow anything to open. The other set let me remove the entire front of the unit. Pity they didn’t bother to tell us which to try. It looks nice inside though. Neat!
Ok. Back to it.😊
Would it help if u insulate the pipes so hot water stays hot ?
The plan is to have the exposed lines in the basement insulated...should help some. Thanks for stopping by and commenting 👍
Several years ago I thought about putting a natural gas instant water heater. After researching it further I decided to stay with the old 40 gallon natural gas heater. This what changed my mind.
1. I would have to have a larger gas line from the meter to the house. I would have to upgrade my natural gas meter. Just upgrading the meter would cost $ 625. The cost to upgrade the natural gas line from the meter to the house and to the instant water heat would be several thousands more.
2. I would have to install a water softener. That would cost anywhere from $ 2,000-$3500. Water softeners have to be maintained with chemicals in order to work. Our water in Houston is pretty hard. Scale, lime and other deposits would plug it up over the years.
I thought about going with gas too, but the upgrade cost wasn't worth it. I've been impressed with this little electric unit. Thanks for sharing your thoughts! 😃 👍
@@Jeffreviews4u everytime I talk to a plumber that do not recommend electric tankless of any size they always say people complain about it not providing hot water in a shower or tub, how's your experience with this one.
That all depends on the brand you don't have to do all that with a Navien tankless water heater.
You don't need a water softener, I install them daily. Unit just needs to be descaled once a year. Also you don't need to "upgrade your meter", just an individual 3/4" gas line to the tankless OR If your gas system is already capable of adding the added btu then you don't need to do anything besides update a small portion of 3/4" gas line that was branching off of to the old water heater.
Tank you. Very helpful.
Happy to help! Thanks for stopping by and commenting 👍
re: Tankless Water Heater. Very good @pshapiro!! I don't know if Jeff got the pun - as in 'tank' you!
I see what you did there! 😂
Im from Appomattox Virgina which is near central Virgina too!
Small world...this unit was installed down the road in Bedford. Thanks for stopping by and commenting 👍
I’m in Charlottesville and installed a Rheem gas unit in my house. The first month that I had it my gas bill went down $39.00. No more keeping a 40 gallon tank full of water hot. And I always have enough hot water.
You mentioned another brand with plastic inlet and outlet are you referring to the A.O. Smith model? I’m probably one of the few that have both the Rheem 18 kW and A.O. Smith 18 kW. I’m currently using the AOS which according to them lasts longer due to the way the heating elements draw electricity. I like the Rheem because you can turn it on and off and like you said the display will change when it’s in use.
Yes, I looked at the AO Smith model as well... didn't have great reviews and the connectors were made of plastic. I also think it was a little more expensive. I've been pretty impressed with the Rheem. Thanks for stopping by and commenting 👍
@8:49 you mention the E5 code. I think the E5 is actually an error that is letting you know that the water temperature that you have set is not being reached. Typically, due to excessive flow rate. Meaning, due to high water pressure (high flow rate) the water is not staying in the element long enough to reach the desired temperature. So the fix would be to install the proper flow regulator and/or lowering the desired temp.
Yes, this is correct. Thanks for stopping by and commenting 🙂
@@Jeffreviews4u I have this same unit and was looking for info regarding the E5 error. The TH-cam algorithm is still serving me content related to this unit. Thought I would share what I learned about the E5 issue on your video when I saw that you mentioned it.
@@hiphop360 I appreciate it and I know others will as well! Thanks again.
@@Jeffreviews4u You might also set it lower to the anti-scald temperature of 120 degrees, possibly lower, most appliances and spigots don't need to be that hot.
Hahahaha!! This exact brand and size is a POS!!! 💯 Displaying E5 is all it’s good for and that’s because I live in the south in Texas with hotter climate and this unit can only run sinks literally so even though it’s brand new it coming off the wall because my new unit has arrived and didn’t give Rheem any money again. Fool me once shame on me, but not again cuz I bought a different brand with better warranty 💯
What was your inlet water temperature and how many faucets/ showers etc. I’m in upstate ny looking at this unit . Only me in the home . Thk you Jeff
Have you noticed a difference in your energy Bill.
How long does the hot water last? For example when the shower is running.
@@mattcradic499 I have not had any issues with the hot water running out. 10 minute showers. No issues. Hope this helps. Thanks for stopping by and commenting 🙂
Are they ok with well water ?
Hose connection sizes and wire gauge would have been helpful.Thanks for making this.
I like ur clarity and snap installation video...
One question how long does it last before you have to get it serviced
Directions do not specify regular maintenance times. I'll have it included in my annual check-up. Thanks for stopping by and commenting 👍
Years ago I had an Aqua Star the oil company installed it ( it was propane) I'm sure they have greatly improved since ( 20+ yrs ago ) the concept is a great one .
I have been impressed so far. I'm glad I made the switch. Thanks for stopping by and commenting 👍
Great coverage of this Jeff and I've learned alot from your video and the many good comments posted. My old gas heater is just that, 'old', so this gives me some very good ideas and information when the day .... oops, don't want to say it out loud!!
Thanks Jeff.
Good info. Thanks! Quick tip: don't use Teflon with those fittings. It doesn't provide any backup protection and only prevents you from getting the connection tight enough to prevent leaks like you had.
So cool man!!! I have to get one!
You need two 40A circuits? Or just one 40A circuit breaker? Wish you showed the other end of your wires to the circuit panel.
Yes, 2 - double pole breakers. Thanks for stopping by and commenting 🙂 👍
So u need 4 hot wires. Plus the neutral and ground. Wires todo 6 wires ....????
Do you wish you would have installed an isolation valve for easier clean-out / flush of the water heater to get rid of build-up?
I do wish I had done that originally. I have since added them and will show that when I descale the unit. Thanks for stopping by and commenting 👍
My system is set up the way you have it in the video. I'm trying to figure out how to get it flushed because my hot water pressure is low. I don't have an isolation valve on it. Can you please give me some advice? I have had several plumbers come out and they are saying different things and I can't get it flushed.
Are flexible pipe connections required, or can copper water pipes be soldered to the wall mounted tankless?
Thanks, great video, very helpful.
No, I used them at the time for a quick easy install. I ended up putting out an updated video showing how my final install looked. Thanks for stopping by and commenting
Thank u
Happy to help! Thanks for taking the time to watch and comment 🙂 👍
Thanks for the info!
Happy to help! Thanks for stopping by and commenting 👍
Thanks
Absolutely. Thanks for stopping by and commenting 👍
Looks like I got a bad element on the same model. Looking for replacement if I can on this model.
Jeff, you stated you connected one white wire to one side of the breaker and the black wire to the other side. My understanding is it doesn't matter what side the white or black wire goes on the breaker, because both wires supply power to the unit. Do I have it wrong? or that's your preferred method. My second question is which unit would you recommend the Rhem 18KW of the Theromate 18KW. Thank you for your time.
On your tankless water heater did you have to install a drain pipe
Yes, check out the update th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
Hello Jeff, I have a question. If I'm installing a 27kw rheem tankless water heater will I need three 8/2 wires and three 40amp breakers to get it hooked up correctly?
Hey there, my recommendation is to always consult an electrician, as i am not one. I checked outthe HD website, it looks like the 27 kw unit calls for 3 double-pole 40 amp breakers and 3 separate 8 AWG wires.
Thank you for you quick response. I appreciate your help and confirmation.
Did you use disconnects?
Great video. A neighbor was just quoted $5000 to replace his with a unit that costs $1500. I figured since it is a replacement it should be maybe 2-3 hours of labor ... which would amount to about $1100+/hr. What am I missing? Is it really that difficult to replace a unit?
Where are the vents to the outside?
This one is electric only. Does not need to vent. Thanks for stopping by and commenting 👍 🙂
Thank You
I had this exact unit installled in my familys cabin 5 months ago, it worked great up until about 3 weeks ago. Granted we are on a well, and have hard water, but we literally take this thing apart at least twice a day, clean out the inlet impeller, clean the inlet screen, put it all back together again, it works for a few hours and then stops. It doesnt show any codes, just a trickle of hot water, thats it. Not only that but our cold water only trickles too. I understand that unless there is a huge scale buildup this unit shouldn't affect my cold water, but its happening. We have no leaks, we upgrated everything from copper to Pex, had a 200amp breaker installed, I've dug up my main water line that goes into the house, no leaks, ive had a plumber come out and check it out, nothing. My girlfriend soaked all our airratiors in vinegar overnight, no change. Ive spoken with Rheem tech support 6 times and all they can do is loosely troubleshoot it for you and send you a manual on how to fix it, my unit was 2 DAYS out of date so nothing was covered, can't return it. The only positive thing is that i live on a lake and can take baths in it. Any input would be an enormous help. Thanks
Has the unit been descaled? Depending on the level of hardness in your water this should be done throughout the year.
@@Jeffreviews4u thanks for the reply. I am descaling the unit now. Within 60 seconds there was already noticeable sentiment. I initially bought a 1/3 pump that seemed to be too much as it was spraying out of my inlet hose. Went back to town and bought a 1/6 that seems to be working. Im thinking let it cycle for 2 hours?? Then afterwards should I cycle clean water through the unit?
@@Jeffreviews4u just descaled the unit for 90 minutes. No change. Going to town again tomorrow to get Tannerite and another heater I suppose
So they only have a 6 month warranty on this? That's shameful, but becoming more and more common with everything.
Possibly because some customers will not do the necessary maintenance. These units need to be descaled. Thanks for stopping by and commenting 👍
Is it suppose to have the message E5?
E5 is a water flow code. Water pressure is high. To get rid of the E5 lower water pressure. Thanks for stopping by and commenting 🙂 👍
It doesn’t seem to be wired correctly per diagram… diagram shows two double breakers with each wire set on different breakers…. Is this necessary since there are two elements?
One set of wires goes to one side, and the second set of wires goes on the other side. They shouldn't be mixed. You are correct in saying there are two double pole breakers. Thanks for stopping by and commenting 👍
Shark Bite. Honestly, even though Shark Bite is expensive compared to regular fittings, it's well worth it. I have had issues with getting other fittings just right, but I have never had an issue with Shark Bite hoses, valves, or fittings getting in place or leaking
I agree, I had no problem paying the premium price for something that made my job a lot easier. They are very convenient. Thanks for stopping by and commenting 👍
That is a slick unit, what gauge wire did you use?
8 AWG...pretty thick stuff. I've been impressed so far. Thanks for stopping by and commenting 👍
How about the monthly cost which is cheaper.Thsnk you and have a great day.
I would love to have seen a solid test of this unit with a shower and a sink going at the same time.
18Kw works pretty good for me...I found it better only having 1 shower at a time. Thanks for stopping by and commenting 👍
How do you descale it?
Hi. How can we clean the filter?
Here is a how to deacale video: th-cam.com/video/NNJEGX4AApo/w-d-xo.html
@Jeffreviews4u thanks for your answer, very helpful.
great video, go Bills
Hello importan question how you flush the system ? 😢
Check out the updated install: th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
I was disappointed to see how you ran the electric. You would never simply jam the plastic conduit into a sharp metal hole. At the very least, you would put a 1/2" or 3/4" romex connector there. I was only looking for a how to video to see if the installer was using liquid tight flexible wiring/ conduit, connectors. I only mention this because people shouldn't think its ok to simply put the conductor through the unprotected metal hole.
This install was to get hot water running... we went back and corrected issues. Check this out: th-cam.com/video/Yt6f2tceRgs/w-d-xo.htmlsi=F3pTfqtsX4oHjvHB
Lol always a critic
wire comes thru wall for wall mount. how do i protect the wire as it curves to go thru wall.
Ok… I was wondering about that too. Never seen bare romex outside a wall before. Good to know it was done correctly.
Thanks for sharing!😊
Hi. I have a 30 foot run to one of my bathrooms from where I plan my install. should I insulate the hot water water line?
Can I use this in a hair salon that has 3 sinks 4 hairstylists and washing machine ????
Hey Jeff, I also live in central VA around the Richmond area. I just bought a 24 kw. It's sounds like I got a unit way to big for my home
@@eddiewebb3107 that unit will certainly use a lot of power. We have the 18kw unit and haven't had any issues. Thanks for stopping by and commenting 🙂
So at the double pole breakers, one gets 2 black wires and the other gets 2 white?
Always consult an electrician if you're not 100% sure what to do. In my case I had black and white on one breaker and black and white on the second breaker. And although I did not show it in this video, I did reconstitute the wires so they were both black. Thanks for stopping by and commenting 👍
I want to get one. Im tired of all the hot water being gone by the time its my turn in the shower. I also have solar so I guess I have to see if my panel needs upgraded.
I just put one of these in. The sinks are all super hot but the shower is still cold.
I have this what wire do I use? Also do I need a ground wire for this box?
Your tank had E5 shown on the display. Is that an error code?
An E5 is excessive flow rate, it is fixed by adjusting the amount of water coming into the unit. Thanks for stopping by and commenting 👍
I don’t like that it requires electricity. Are there models that don’t?
There are natural gas and Propane options, but they still require electricity to power components. Thanks for stopping by and commenting
Go Bills!!
Oh yeah! Go Bills!
Is the sharkbite water line 3/4" to 1/2"????
716 Proud !!!!
Oh yeah! GO BILLS!
Awesome video! I'm about to install one of these myself. Just out of curiosity, how much extra do people pay in electricity per month with this system?
Thought about going electric tankless (no gas service here) but decided to go with a rheem hybrid water heater instead just over a year ago (heat pump + electric tank water heater).
Far easier run on a home solar+battery system or a generator than electric tankless and has almost the same operating cost as gas tankless water heater.
(Massive down side is that it cost more upfront and you'd need a condensate line running to a drain or outdoor just like with an ac.)
Very cool. I've heard good things about the hybrid unit. Thanks for taking the time to watch and comment 🙂 👍
I didn't see any valves for servicing the pipes. I think they run white vinegar through them.
I installed them after the video...here is an update: th-cam.com/video/Yt6f2tceRgs/w-d-xo.html
I presume we use an 8/2 solid wire for this installation?
Yes, 8 AWG for my install. Thanks for stopping by and commenting 🙂
What size wire did you use?
8 awg. Thanks for stopping by and commenting 👍
Does this unit come with the electrical wiring or is that bought separately? Also, if it isn’t included where can I buy them?
Wire not included. I purchased mine from Lowes in the bulk wire section. Thanks for stopping by and commenting
Nice looking install except for one thing. You need an electrical connector where your wires enter the water heater to protect wires from damage. I am a licensed electrical contractor
Where can I find the reset button? Thanks
I’ve been using nothing but the braided type hoses since they came out. The reason yours leaked was because the connection to the water heater was not tight enough.
Jeff thanks for yr video am not sure if a water softener was used to protect the unit from sediment caused by chlorine that's the mistake a lot of plumbers make in installation of these units
Im getting e5 code and water is not coming out hot enough. What are your thoughts
The E5 is actually an error that is letting you know that the water temperature that you have set is not being reached. Typically, due to excessive flow rate. Meaning, due to high water pressure (high flow rate) the water is not staying in the element long enough to reach the desired temperature. So the fix would be to install the proper flow regulator and/or lowering the desired temp.
Yes, he's correct e5 is a water flow rate code.
I except that you used electric to heat the water. I understand that gas heats better and faster. I used to have an electric system in each room above each sink or showers. I loved it.
My old tank was electric as well. They have gas units, but I chose the electric version for convenience. Thanks for stopping by and commenting 👍
I have this unit and I'm getting an E5 code. The code won't go off until we choke the water down to a trickle. Any thoughts?
E5 is a flow rate code. I get that too, but it doesn't seem to impact the hot water. My psi is set to 60. Thanks for stopping by and commenting 👍
GO BILLS!
@@pinkeye00 Go Bills!
Have one, Tempra 27, hooked on my well ( living rural community), works great. Love it. My plumber did not recommend it for a whole house system rural, said it would not work . He was WRONG (Iblame it on working old school). Just a comment on your install: it looks great but around here, a pressure safety switch is mandatory on the hot side. Good work. I will be installing the exact same system as yours at a friend's house in a few weeks. Keep posting.
I hook one up and it blew the board in 30 seconds . Had hot water briefly . Made in China is that bad ?
Great video, when it starts up, does the amperage draw cause the lights to flicker? Is that an issue with electric tankless?
Following; same question.
Following; I had the same question.
Pls the 6 terminal is it 3phase ?
Great video, I recommend a pre filter in the line before the waterheater.
hello,how far would be to to install this from circuit breaker panel?planning on installing close to breaker so i can just run romex outside the wall
I really need a water heater at the moment we have been boiling water for quick showers but can't afford the big boilers ATM I just wish I didn't have to do the electrical part I'm not experienced to do that 😢 kinda making me question it and my abilities to accomplish this.
You definitely need conduit connections coming out with electrical wires
You should use wire nuts to go through the opening in the box.
What to do if it just gets warm? Was hot and working bit now its just warm with temp all the way up