Tankless Water Heater Install | Existing Home
ฝัง
- เผยแพร่เมื่อ 11 ม.ค. 2021
- In this video Paul installs a tankless water heater in an existing house. This is for some family nearby that wanted to switch from their old 40 gallon to a tankless.
We're waiting on drywall at the Mad County Build, so it seemed like a good time to get this job done!
There will be another video in the coming months installing the tankless water heaters in a new build.
Check out the post on our website for more about this episode including tools and supplies you'll need: marshallremodel.com/tankless-...
Thanks for watching! Subscribe, Like, + Share if you enjoyed this video!
Amazon Store | Project Tools Listed by Category
www.amazon.com/shop/marshallremodel
Finishes, Fixtures, Decor, + More
www.liketoknow.it/marshallrem...
Daily Updates
linktr.ee/marshallremodel
Contact Us
info@marshallremodel.com
Mad County Build Series 100+ Videos
• Mad County Build
Music Licensing through Soundstripe
soundstripe.com?fpr=marshall10
Use code Marshall10 for 10% off your subscription!
#postframe #selfbuild #construction - แนวปฏิบัติและการใช้ชีวิต
![THE TOYS x NONT TANONT - ดอกไม้ที่รอฝน (spring) [Official MV]](http://i.ytimg.com/vi/pPa1d5cC8M4/mqdefault.jpg)
Thank you for showing what a leak looks like and why it's important to check for them. Great video
Great help. I have 90%of my Rinnai water heater hooked up. Now I have the confidence to finish the installation after re-reading the installation manual. Thank you!
@@immachine1565 No need for one on a tankless, they dont hold hot water.. they just heat it and send it through.
Great video on the installation and troubleshooting the Gas line pressure leak.
One of the best start to finish installations I've watched.
Well done!
Nice clean install, good meticulous workmanship! I, too, am leary of pex. I like soldered copper…..but learned a lot…nice diy job!
Great video. You are real professional plumber. You know how to be careful to check the gas leak before making tightening pipe without any further leak. Congratulations!
We had a Navien Combi boiler installed during our house remodel back in 2016. The house was damaged from Hurricane Sandy. Entire new heating system was installed. We love the unit, our gas bill went down and the house is much warmer than before.
Thank you! This was the best tankless water heater video I've seen so far.
Ive been installing tankless water heaters for over thirty years they have come along way but depending on your water quality my suggestion is buy two heaters because when something goes wrong it can take days to get parts if happens Friday order parts on Monday could take four of r five days no hot water trust me
Tankless is awesome. Had mine for 6 years no complaints. Annual servicing but that's it. Good investment.
If the drain fittings were rotated about 45 degrees or so towards the front it would then be much easier to connect hoses for flushing the unit as required.
Should take off the cover and check for gas leaks inside the unit, the manufacturers work needs to be field checked and twisting on water tank gas connection without a proper hold wrench can twist the connections inside the tankless unit and cause leaks. When tightening fittings in close areas always use two wrenches.
Love my tankless hot water heater!
very well workman and you explain step for step how to install. Thanks a lot.
Im a licensed master plumber and trained by rinnai us as a level 4 tech. I can tell you number 1 the gas line is undersized. Unless you installed the lowest btu possible unit your probably running 150,000btu min. You should be running a 1” gas line from the meter to the tankless directly depending on the length an material it could be larger. Second the flue although spaced properly which is good unfortunately it’s in an inside corner which will cause the exhaust to periodically be sucked into the intake which is bad news for the burn chamber.
And the gas meter is too small.
Yep, another Carpenter playing Licensed Plumber. No issue with insurance and permits? HA!
So many issues...
No Plumbing Permit
No Gas Permit
Sch 40 pvc no longer legal to use (at least here in MASS!) for the guys exhaust
No Liability Insurance
Push to fit valves
Valves under heater not for "draining" but for annual flushing of the heat exchanger
Condensate not proper
I could go on and on...
He is qualified to run those 2x4's down from the floor joist though.
Not doing his family any favors here.
Looks perfect to me
Piping as the crow flies is terrible. Straight, square piping only
@@tomhill9027 This install would never pass inspection in Colorado or not in my county anyways. The issues you mentioned plus a couple more. Rinnai and Rheem both teach a very different setup and installation that would meet code. I usually do not comment but that install would make me nervous. The homeowner can pull a permit personally, but that would fail instantly with about six violations or unacceptable items. I guess as long as it works and nobody gets hurt.
Hey man I wanna tell you I enjoy your videos. Like you I have just build my post frame house in southern indiana. Worked on it every day for the last 6 months and it's coming to a close. I have had help from a couple family members. Every time I come up the driveway my sense of accomplishment is like nothing I have ever felt. Thanks for your videos I found alot of inspiration when times got tough by watching your videos. Also alot of good ideas and tips along the way. You have been a real blessing to me and my project.
Thank you so much for your comment and encouragement. That's amazing. We'd love to see photos of it if you want to share.
Don’t like how many gaskets on the the more seals more chance of leaks there are better gas piping systems to use
Que padre amigo, gracias. I'm ready to get my tankless installed, I now know what to expect.
You do nice work! Wish you were close by....plenty of projects around here! LOL!
Thank- you for taking the time to make video excellent workmanship.
Great video!!! Thank you very much for posting this I am glad i found you .
Glad it was helpful!
Also make sure unit is serviced once to twice a year also add a filter onto the cold water inlet to the tank to keep scale build up down on unit.
Flush , clean flame rods and check filter just a few tips and info also put a gas shut off before sediment trap so it can be serviced if need be.
Hard water is never a friend to a tankless. Low volume of water with a lot of Btu's= lime scale in the heat exchanger. At least once a year a clean and flush. Also no condensate neutralizer, by product of any modulating condensing unit is acidic water. It can and will eat through copper and cast iron pipe and etch concrete. Also not good on septic systems.
@@mattjarchow4965 The unit comes with a built in condensate neutralizer.
Super video!
Though get some better csst, without an o-ring. I have never seen that stuff.
Usually you put the clip 2 rings back and it presses the stainless against a brass surface to seal...
Also two more things 1"x3/4" npt "bushing" and what you guys call a sediment trap. In gas we call that a "drip leg".
Love the title of the video, Would be amazed to see you install a water heater in a non-existing home.
It's a retro-fit install, versus a new build home which is very different - hence the title.
In Massachusetts we can’t use pvc anymore for venting the glue dries up depending on temperature and btu rating the glue dries out and leaks we now can only use polypropylene pipe and have to have an acid neutralizer kit for condensation so it doesn’t cause acid erosion of drain pipes and sump pumps nice clean install except the pen could have been a little neater they do make elbows and straight pipe with clamps to make a nice neat professional job
Great Video,,,Thank YOu for Posting.
Thank you sir! Me and my wife used your video to install the same water heater .
Awesome!
done this many times when I worked in residential. There are a few things people need to consider before switching to one of these, first, if your house is still plumbed in old galvanized pipe forget getting a tankless unless your going to rip it all out and replumb in copper. secondly you need to have the right size gas line available and the BTUH available to run the tankless. I have seen on some small houses with small meters that have multiple gas burning appliances run out of gas cfm running multiple appliances while trying to run the tankless. I personally run both the intake and exhaust at the same angle just for the symmetry of railroad tracking the lines but to each their own.
Johnny B. What about galvanized pipe doesn’t work with a tankless heater? I mostly switched to pex but some of my hidden piping I left alone
@@jeffhuntley2921 The problem with galvanized pipe is that it rusts closed and restricts the water flow. Tankless water heaters heat large volumes of water with high delta T in short amount of time, water flow is important. If it works at all, it will only cause premature failure of the heater over time and unsatisfactory performance.
If I walked into that basement and saw that "shoe-makers" assortment of plumbing issues(tub drain blocking window from opening? Haha),rat's-nest of pex piping and electrical wires,cinder block foundation,too?
I'd walk away.
@@jeffhuntley2921 👋
@@raycumpian2864 ya thats not a basement I would use for a first date
This was an exact replacement for the old one that lasted about 10 years. th-cam.com/users/postUgkx7yWIKcrbA9KMHkGSfcgxW2lsjHT6B8Sh The top of my mitigation tube by my roofline was just a 90 elbow which allowed too much debris to fall down into the fan, eventually ruining it. Without this issue, I bet it would have kept running another 10 years. When I replaced this fan, I added an extra elbow joint so the top tube now it does a 180, which should solve that problem. The radon guys around here wanted to charge me a $300 diagnostic fee, then parts/labor (probably close to $600 total). I installed this all by myself in about an hour for the cost of the fan; it would probably be even easier/faster with two people. FYI the manufacturer's warranty greatly differs depending on whether you install it yourself (1 yr warranty) or have a licensed installer do it (10 yrs).
. Also I avoid csst as I feel it can be dangerous. I use iron pipe or soft copper and silver braze.
Nice install, very clean and you covered every step. Impressed by your approach, attention to detail and most of all your care to doing the job right. God bless!!
Much appreciated!
Clean install? 🤣😂
@@plumber79 I was thinking the same. Think of it this way, at least it’s not in your house. It’s funny how my wife complains about me being a perfectionist, but my customers don’t.
Clean and great…!!!
Good job…!!!
Thank you!
Nice job you make it look easy!
Thanks 👍
Awesome video as usual, very informative thank you
Thanks for watching!
I not sure but in California we use copper from water heater up the wall exposed mount to the ceiling and from the ceiling we use Brass Adapters to pex and ur missing insulation on the line
Great job!!
We’ve had our Richmond tankless water heater installed for almost a year, and we love it compared to our old 40 gallon natural gas water heater
Thanks for sharing!
I know your family is going to love the benefits of a tankless water heater system. Nicely Done!
You all prolly dont care but does anybody know of a way to get back into an Instagram account??
I was dumb forgot my login password. I love any assistance you can give me.
@Gordon Cullen i really appreciate your reply. I found the site through google and im trying it out atm.
Takes a while so I will reply here later with my results.
@Gordon Cullen It worked and I now got access to my account again. I am so happy:D
Thanks so much you saved my ass :D
@Bentlee Remy Glad I could help =)
dude, great video. thanks for your time.
Excellent video 😊
Any reason you didn't hang the water heater nearer to the vent exit? I find the small pressure lines (incl gas) easier to run and they take less space than running the vent lines to the other side of the room.
When I built this house 5 years ago I chose a tankless water heater/boiler. I have no regrets. I've never run out of hot water. We're on well water so I'm more likely to run out of water before I run out of hot. I do the annual maintenance on the water heater side which consists of recirculating a mild acetic solution for about an hour.
Do you have hard water is it filtered and water softener used from the well. I was thinking of installing one I’m a seasoned DIY .
@@blt981 We are on well water, It's not softened or filtered. I clean annually with pump and dilute acid. They sell kits with a bucket, a pump and the hoses to connect to your heater as well as the chemical. Our water is pretty soft. Soap lathers readily. We do get mineral deposits from water but it is in solution within the system and doesn't form until exposed to air.
The intake vent has to be at least 30" from the ground to avoid the white stuff covering it
Very good video, easy to follow and understand.
Thanks for watching!
Fantastic video, nice clean job
Thank you very much!
I always use the Polish chart for torque specs. Tighten til it break. The 1/2 turn flex gas line remind me of that chart
I saw a suggestion about screens on the PVC due to rodents. It's usually a bad idea on the exhaust, and some instruction manuals will say that. Flue gases on high efficiency units are cool and moist, so will immediately condense on cold hardware cloth screens. (rapidly) That starts a death spiral and an ice dam is built quickly in cold temps. The pressure switch sees an obstruction and the unit shuts down. In practical terms rodents don't enter, but ice dams will form all the time below 20F. FYI.
Great explanation of this. I was looking thru comments to see if anyone had already said this. Obviously doesn't apply with homes in warmer climates.
If I was inspecting this installation, I would cite and write 3 corrections: 1] The T & P valve needs to terminate to an approved location. 2] PEX needs supporting every 32".3] Provide a gas line schematic when tying into an existing system. Other than that, nicely done!
Mike, any ideas about this 👇
For anyone watching this, what kind of hangers and brackets can be used to secure the iron gas pipe ?
I’ve run into a situation where the gas pipe has a long run without support. It just hangs there and will wobble around if anything disturbs it. Just touching it, makes it shake badly.
It’s not good.
And any answers will be “for entertainment only.”
Thanks.
Great video. Much appreciated!!
I have never had a tankless, have had water heaters installed myself pretty easy (last one cost me $600) lasted about 10-15 years little maintenance. Tankless DYI like this guy if not you probably need to get some pro to install $3k to $6k. 1 )Biggest selling point of tankless used to be instant hot water (I was always skeptical-how!?) now it comes to light that that is bogus... 2) Also big energy cost savings $8 a month = that will take 50 years to pay for itself. Total no brainer for me (my opinion vast majority of people) tank water heater until tankless gets way way cheaper which doesn't seem to be anytime soon.
Well tony d..would like to go see u buy a tank heater now for 600 bucks u would end up with a 40 gallon cheapy from manards that would only last u prolly 8 years if u lucky & that would be no where as efficient..and yes if the unit is hooked up properly & every thing is sized accordingly or unit is not undersized u will get hot water to the fixture very quickly..far as only saving 8 bucks a month on cost to run I would say that's a little off as well.. considering the tankless does not need to hold water and continuously heat it as a tank type does or take the amount of time the tank type does to get u up and running to have hot water again after your teenager drains it with half hour showers or more..also most likely depending on what u would need to keep up with your use load u would only spend around $1500 for a quality brand tankless not 3 to 6k..well add around 3 hundred bucks or so for the material still way under plus u do your own like u said so save ton on labor too right..
At this point, a tankless heater costs just about the same as a decent tank heater, sometimes less. They aren't that expensive.
5gpm tankless are around $800 now, not much more than a tank
@@christopherhaak9824 when we were looking for a new water heater about a year ago we were looking at a power event or a tankless and we found that Richmond who sold both sold the tankless for cheaper. That’s what we ended up with and we like it a lot more than a tank
It would be nice if you would mention about making sure with the BTU's you are adding to the gas system,, that everyone needs to make sure your gas piping is sized correctly to handle all the gas appliances, I got to jobs everyday and see that problem, plus jack legs in our area are installing these units and not getting them inspected like they are suppose to, to make sure these units are installed the way they need to be.
Really appreciate this video! Trying to decide if I should go tankless or not and if i do if I can handle the install myself.
If you do not need big demand of hot water, do not get a tankless, DO THE RECEARCH
One of the most thorough installation videos I've seen - well done
Thank you!
How do you determine the size gas line needed?
@@phillipmontoya5326 The Richmond units require a 1/2 gas feed. Other units may vary, just read the installation instructions.
Nothing like a brother-in-law with skills!
It can suck being the brother in-law with skills.
Lol
Good job, the only thing I can see that would be called by the inspector is you have to bush down at least 2 pipe sizes with gas or use a reducer.
Nice job very nice job
Thanks for posting! Looking at replacing my boiler with one of these combos. What do they require from the electric panel? Thinking just a dedicated 20amp?
Nice work man! I learned a lot! Thank you for posting!
Bushings on gas fittings? Use bell reducers👍!
The electrical wiring blows my mind.
Nice job dad.
My dad taught me to do pipe dope, tape and then pipe dope🤷♂️ we all got taught differently clean install👍.
Your dad isnt the plumbing code
@@greencolombiano never said I do it that way just a way my dad taught me at work I do tape and then pipe dope 🤦♂️
I believe the relief valve needs a line close to the ground
Very nice , Great job . Thank you for the share. RL
Thank you!
thank you
Looks like the same Richmond I have. I hope you have better luck. In 5 years I'm on my 3rd mother board, constantly have to clean my flame rods and get a new error code monthly. It's nice when it works but has proven to be unreliable.
Hey bro, this looks really straightforward, I really appreciate the info and play by play. Our hot water heater (from 1993 lol) just died, and you’ve instilled confidence in this machinist/fabricator to install a tankless on my own. Only questions I have are regarding permitting and insurance after the fact. If there’s something you could say with regards to that I’d be very appreciative. Cheers.
Thanks for your comment! Homeowners insurance doesn’t seem to be an issue. Permitting is going to be based on where you live and what your county/city requires.
Holy shit 1993 dam built well
@@MrPostFrame Till the home inspector shows up.
@@MrPostFrame insurance isnt going to pay to fix their slab after you destroyed it with condensate.
From what I've read, if the work is not done by a licensed installer, the warranty is void on the unit and possibly your homeowners insurance won't cover any issues caused by incorrect installation
Great job explaining and doing it. Appreciate it.
Great vid! Thnx
Thank you. Needed this.
Thanks for watching!
another interesting video Marshall, quite complex really.
Thanks for sharing
Glad you enjoyed it
Nice handyman work
while you were there, shoulda put a master shutoff valve inside the house. :)
Great stuff as always. Appreciate it!
Thanks for watching!
So exhaust and intake can be side by side? Thanks for the share
I have learned to never use dish soap for checking gas leaks. It is a degreaser which will remove some pipe sealants and is corrosive and can rust steel pipe.
Only use approved gas leak solution
This is why you get someone who knows what they are doing. Great job! Enjoyed.
Thanks for watching!
There were a few mistakes made. Read the comments. Other people have pointed them out.
@@SergioPena20 I don’t think you want a shut off on your hot water side either, I don’t know much about tankless water heaters but I’m familiar with hot water tanks
@@murkyturkey5238 with the tankless you have a valve on the hot and the cold so you can flush out the heat exchanger once a year we have one and we love it
greetings to all who like this show I enjoy it too
Greetings Rosy:)
Thank you alot
Thanks for watching!
Hey Marshall, you mentioned it was a family member you did the work for, and keeping costs down is pretty important.
I dont know your background but I do have a couple of questions if you wouldn't mind answering.
1) why use pex over copper for the cold supply and hot supply? You secured the 2"x4" to the wall. Why not just use bell hangers to secure the piping to the to a 2"x 6" instead? I also noticed that you've used shark bite valves, I've had terrible luck with those on huge temperature swings.
2) do they not require a condensate neutralizer where you live? We do up in Canada. The condensate is very acidic and eats out old underground piping unless it's the very old clay tile.
Great video otherwise 👍
1. pex is resistant to corrosion and acidity more than copper is, I agree SharkBite's are garbage and not even allowed at most professional plumbing outfits
2. most residential codes do not require a neutralizer kit below a certain BTU value
This unit, like all the Richmonds comes with a built in condensate neutralizer.
Did good but that wood framing is def not as sturdy as anchoring it to that block wall . It’s hollow but it will hold better then floating 2x4 .
It's against code in my and most states to run pex upto your water heater. You need 18" of "ridgid" pipe...flexes are considered acceptable and will meet your union requirements...
I was thinking the same thing. Hire a professional plumber for plumbing
It's not just code,it's manufacturer specs
Hack job. Not to code. I saw the thumbnail and 5 seconds into the video said to myself this guy has no business doing this job. I think his venting is too close to an inside corner too. Focused on windows and missed that. Isn't the trac pipe supposed to be grounded? Also, wrong type of plastic tube for the drain and he didn't put it through a neutralizer. Gonna rot out their floor drain and the plumbing if its old cast iron. That stuff is like acid to cement.
David, are you referring to standard tank water heaters? Any back draft from the exhaust flue can melt the hot/cold water lines if they aren't metal for first 18"
That is not the case for a condensing tankless. You can run pex directly to the unit if you want.
Hello, thank you for the video.
Why would use 2 inch pipe not 3 inch’s.
Thank you
Excellent tutorial and such a simple clean set-up!
Thank you!
Can you use these with propane? Do they come with the orifice or do you have to switch it out.
This doesn’t need an expansion tank? What if it does both hot water and heating concrete floor with pex in it?
Can I hook into an intake and exhaust that is already there for my furnace. Is the same setup.
I am planning on removing my water heater and put tankless water heater. My current water heater is using PvC for vent. And it goes up in the attic to the roof.
So my question is can I use my vent That I currently have on my tankless water heater? It about 20 to 30 going up? Pvc
Tremendous video, one question, I can do all of that, I'm a plumber, but they tell me that they have to be someone with a license, when the inspection arrives, they will have a problem for me, which is true ?
I have a tankless water heater in a tiny house in the mountains that is powered by a generator…I have winterized in the past with antifreeze but heard these units have freeze protection! Can you provide any recommendations?
does the pump have to be installed right next to the tankless water heater? It seem to tight of a space, can i just install it down line some where more open?
How much is the approximate cost of installing a thankless water heater. With and without partsm
clean work and very confident, Thank you for sharing. can the release pipe be a flex one?
Which drain did you use for the condensation?
Help ...my gas hot water .is leaking out overflow pipe or relief valve ,after i take a shower.... when it is feeling back up it shoots steaming water all over my floor .through the relief valve .ive heard it probably valve but i think its in the heating unit getting the water to hot ...plus its on lowest setting .any help would be awesome
Love the Thomas Edison quote!
You can buy press fittings for a quarter of the price and if you buy them from the supply house they'll rent you the tool as well.
So I have heard that the maintenance is much more involved with tankless systems. Do you have a video on that aspect of the tankless water heaters? Thanks for the videos, they are very informative.
We don't, but still need to do a video on the install in our new build. That's a great aspect to include in a video.
Sounds great!
Circulate vinegar through the system. Doesn’t get my mor straight forward that thank.
Why do you have to run intake if you have oxigen from the old water heater vents
Like the furnace
I noticed that there is no expansion tank installed. Do you need it?
I get made fun of at work for being a nj plumber who runs pvc working in nyc where they still do cast-iron, kinda mind blowing what other people around country are doing we sweat copper pipe and run black steal for gas this type of work being done realy takes the art and skill out of the trade, take the extra time to do things like a pro your work will last longer and you're customers will know the difference.
Those gas fittings he installed would eventually dry out...black pipe,baby!
Didn't know you could use flex for gas, good to know.
That's the only thing I don't like . Little scary.. 😂