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Tankless Water Heater 3 Things to Know

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"Risinger Goes Rogue" on tankless water heaters. Here are some tips you need to know about them before you install. Assemble your own kit for flushing out your Tankless with these parts. Pump http://amzn.to/16vJprP Hose Kit http://amzn.to/193Z7YI and any 5 Gallon Bucket http://amzn.to/1gkAGdr https://www.MattRisinger.com https://www.Instagram.com/RisingerBuild/ https://www.Facebook.com/RisingerHomes/
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Text Comments (313)
Cynthia Eng (16 hours ago)
It's called a generator...looking at them for backup
michael murphy (3 days ago)
Tankless water heater sandwiching cold water in hot water line how can I fix that problem?
T Brown Records (17 days ago)
You made a cool video thanks
Joe Smith (1 month ago)
Tankless boiler and water heaters require way more service and maintenance. There good at the beginning. Cost a lot more money in the long run. I've been a plumber more than 20 yrs. I know...
Chad Douglas (1 month ago)
I'm looking for a recommendation. I have tried Googling and I'm not getting anywhere. I'm hoping you can help. I need a propane on-demand water heater that doesn't regulate temperature by Flo rate. Basically I wanted to regulate the temperature like many of the electric units do. I have an existing unit at the house and we can never get the water temperature correct without it shutting down the heater dude flow rate being too low.
K K (1 month ago)
What are some HUD approved water heaters??? Pls help.
Darnell Allen (2 months ago)
Matt thank you for such a great and informative video. I was just called this morning that the traditional unit which is a GE has a problem and the part cannot be found in Maryland. So I'm considering installing a tankless water heater. It would have to be mounted in the utility closet, but I think the pipes would have to be wrapped well to prevent freezing. Great video!
Arthur Fiorillo (2 months ago)
Also, he did not tell you it takes about 1 minute of running before you get hot water I'm in Mass. and I have a well in the winter about 1.5 m8nutes before any hot water, and it is in the basement. That is another drawback.expecily if you're on town water with sewage.
Nathan Steele (2 months ago)
looking to build out a camper van with a 25 gallon water tank looking to supply hot water to 1 sink.. was wondering what would be better a small tank water heater or a tankless?
fakk u (2 months ago)
one of the advantages of a tankless versus a regular tank gas its that you will save about a 1.30 a year in savings
F Dryer (3 months ago)
Matt, you're wrong about lack of hot water when power is lost. Since tankless are plug in units, simply using a small portable generator of around 1kw or less is enough to power a tankless unit. My Navien NCE 240E condensing combo dhw and boiler uses 200 watts so a small generator is fine for power outages. As long as water pressure is available, I can use a generator when power is lost and all the hot water I need. So you're argument is based on false information.
Ricky Pruitt (4 months ago)
how big of a heater would i need for 2 people?
N D (4 months ago)
i'm in san antonio. is there anyone recommended who could install one of these outside?
JohnnyBDyer (4 months ago)
I've had one for 10 years, propane powered, installed in old heater closet, we love it, I'd never go back to an old fashion heater.
Carmen Linley (4 months ago)
Does a tankless hot water heater need a drip pan?
magickiss245 (4 months ago)
Do you prefer tankless over point of use heaters?
Rock Cuppari (4 months ago)
Ya Dont add water to it Lol
Timothy Scott (5 months ago)
I have been using a Titan N-120 equivalent electric model through my softener at my house for 15 years with no problems or maintenance. It is on a 60 amp breaker that never trips. The only down side is the lights flicker when the heater is one. Also, been using a chinese propane powered unit at my cabin for 10 years with no problems or maintenance. Sill using the same D batteries for spark, unbelievable. Each unit cost about $225
Isaac Levine (5 months ago)
gas; doesn't even mention natural gas on-demand heaters
Neil Kan (5 months ago)
I have this RUC98I unit, could you do a video or videos of cleaning the burner and heat exchangers.
HarryHydro (5 months ago)
I bought the cheapest tankless propane water heater I could find. I save about 80 gallons of propane a year, so it paid for itself already. But, it sprung a leak in the copper tubing, but. Think I can fix it. Anyway, three controls, you can set the max water flow so the water doesn’t get cold if you’re taking a shower and someone runs a sink. The flow is slower, though. You can set the propane fire rate, which sets the water temperature. This is a touchy control. You have to turn it down in the summer. And, there is a Winter/Summer switch, that kind of does the same thing. What I don’t like is if I find the water too warm, turning the flow down makes it hotter. Much hotter! Question: Is there any model that ‘feels’ the water temperature and adjusts the fire rate to compensate? 2 gpm is fine. The one I gave takes 2 D batteries for the ignition. I haven’t had to change them in the three years I’ve had this one. Marey, I think.
Jack Bizaillion (6 months ago)
This is not a do it your self job. Pay the plumber to install.
Dread Xican (6 months ago)
Douche
Simon Andrews (6 days ago)
+Matt Risinger Maybe he's taking about showers (in French)? It is a tank less water heating system after all. ;)
Matt Risinger (6 months ago)
Really? I don’t think I fit in that category. What’s your reasoning for the the DB label?
JJ G (7 months ago)
Had mine since 2004. I have hard water and had it flushed once in 2018. The serviceman said it was remarkably clean. I would buy another one in a a heartbeat
Brimar7 (7 months ago)
Sounds like adding a backup generator and a water softener is the way to go.
Antonio Barichee (8 months ago)
We spend whole night fix it
Boone Docker (8 months ago)
I'm not sure why inferior products like tankless water heaters get so much traction, but having a Rinnai like the one pictured here, I can tell you mine has been nothing but trouble, maintenance, and frustration. Give me an old tank based system that sits in the corner and runs for 10 years any day.
Monique Lynwone (8 months ago)
You are the best thanks for the info
Dante Perez (9 months ago)
So you have two tankless water heaters or you have two houses?
John Doe (9 months ago)
Only advice you need, make sure it's not manufactured in Great Britain.
Brian Duval (10 months ago)
Unless you are able to locate your tank less water heater close, with today's low flow faucets, it takes far too long to get hot water! With 5 gpm .8 gpm faucets, you may have 2+ minutes of waiting. And if you turn the water off & need hot water again - even a few minutes later - you have to start all over again. Without that 40 gallon "heat sink" at the other end, the water cools off in the pipes almost immediately! Never EVER let your dopey @$$ plumber mount a tank less far away! Even one room away is too far. If this is your only option, stick with a tank heater.
Di Farr (10 months ago)
Great info..... thank you! Can I use an outside unit in my attic space? I also live in Deep South.... idea is to install heater as close as possible to point of use.
Deimos Phob (10 months ago)
In Arizona, you'd probably be more concerned about melting your hand off trying to install the thing than freezing your water. Even in the dead of winter, you still might burn a few fingers.
Julia Graff (10 months ago)
How did you outside unit do with all the recent cold weather? We are i South Louisiana and the house pipes froze.
Arthur Ricca (10 months ago)
no comment
Steven D'Ambra (10 months ago)
video summary: clean your tankless every few years, no hot water reserve, and mount the unit inside.
T H (11 months ago)
I'd like to hear the comparison of gas to electric supply of the tankless. We've had an electric tankless for years (2 full bath, w/d) and no problems, also no maintenance. It comes with additional thermostats so if you don't want the water as hot in the kids bathroom it is doable. The unit is in Hong Kong and tankless is the standard. We love it but can't find anything comparable in the US. Prior to that we'd also had the type that is in each room, still worked great. Do you know if I can bring one from HK to the US for installation? The plug would be different but being able to have one similar would be awesome.
Frank From Upstate NY (11 months ago)
Hi Matt,...being that most municipalities commonly have water troubles with water breaks and contamination...shouldn't everyone just have a water cleaning system at one's home inlet?
Santos Marquez (11 months ago)
Wow, this helps. But it still wouldn’t deter me from purchase.
Tim Shepard (11 months ago)
If power went out, then it probably wouldn't work anyway since the pump to push the water would be down. Unless you have a generator.
Matt Albrecht (11 months ago)
Matt. nice video! but i want your advice on something: i also live in Texas and currently have an electric 'tank model' in the ATTIC (yeah, crazy. one time allowed by code!). Well it is 20 years old and i want to replace it with a tankless and hang it in the garage. my neighborhood is ALL ELECTRIC. i think maybe the elementary school across the street has natural gas, but there is not a gas manifold to be found in the residential areas, so that means i must go propane, or electric. propane is not really an option (at least, not a very good one) because of where the tank must be located (texas land board i guess says where you can put them), and that would require running a gas lane across the house (tank on the north side) to the water heater (and the garage is on the south side). venting would also be a hassle. this being said, my questions: (1) what is your opinion on electric? what size should i look at for to serve a 5 BR house. 4 of us living here, i can realistically see 2 people taking a shower at the same time, maybe the washing machine running at the same time (perhaps the DW, but neither are drawing water at all times). any particular brand you would recommend over another? I already know i have to upgrade the electric because they did not count on anyone 'adding on' something like this 20 years ago, and the garage panel is FULL, and the amps coming into the house is only 150 judging by the wire size, but i can get that bumped to 200 amps (i am 35 feet at the most from the transformer - underground service), and then run a sub panel branch of 200 amps to the garage and install a new panel. no problems there. (2) like many of the other people commenting, it takes FOREVER (and i am talking about 2 minutes) for hot water to arrive at the furthest fixture. when installing a drinking water line (i have soft water in the whole house, except for a drinking tap at the kitchen sink and the fridge for the ice maker, which are both charcoal filtered and whole house filtered) i also ran a return water line (3/4" PEX tubing, insulation shield on outside), in anticipation of using a circulating pump in conjunction with motion sensors someday. Is there a pump you would recommend using for this purpose (size wise, GPM)? where would you put the pump? on the return side (where the recycled 'cold' water returns from the furthest fixture) and then back into the 'input' side of the tankless (with the appropriate 'T' and back-flow check-valve)? Or on the load side where the water comes out of the tankless, then thru the pump, to the fixtures, and return line hooks straight to the input for the tankless (with the valves arranged as above)? would you use a shut-off sensor on the pipe so when the water reaches a certain temperature in the lines (like the sensor AT the furthest fixture, or in the garage on the return line) it shuts off the pump (so 'hot water' doesn't go back into the tankless, and the tankless shut off because 'it is already hot')? what is the best way to use a circulation pump with a tankless? (3) is an expansion tak needed with a tankless? i have seen various answers to that question, and local code only references TANK models of water heaters. thanks!
Ryan Bierwirth (11 months ago)
I have my tankless set on the highest setting for hot water, but by the time the water reaches my shower the water is luke warm. Never gets super hot. Is there anyway to fix that?
Ed Zeppelin (11 months ago)
Did you address the 240 Volt requirement? Switch to tankless is Great if you have a 240 receptacle "right there". If NOT, new circuit breaker, run some wire and wiremold, add several hundred dollars if someone ELSE does it. Let's talk about that, Spooky.
3Xcollasso (10 months ago)
mine runs off 2 d cell batteries, no outside. electric required. installed myself. easy. no plumber needed.
Rob L. (11 months ago)
For the power issue, what about a UPS backup system?
utube4greenfuture (11 months ago)
What about "Cold Water Sandwiching" or how you can't run water at half throttle at your tap due to the minimum flow rate required by tankless systems to keep the burners on?
DumbSkippy (11 months ago)
Bullshit ! 1. I have no maintenance, never ever flush and we have super hard water. 18 years old. 2. My Bosch Hydro uses an inbuilt dynamo that generates it's own spark. Mine is external and I live in Perth Australia when the climate is like san Diego.
Patrick Malloy (11 months ago)
I have a tankless and I hate it constantly shutting down and has to be reset I flush it out and still have problems the thing is a piece of junk I have had problems with it from the first month of having it and it never ends.
Patrick Malloy (10 months ago)
Greenid Guy it's a navien
Patrick Malloy (10 months ago)
Greenid Guy no it came with the new home a DR Horton build
Robert Slackware (11 months ago)
so how do you get the manufacturer to except you don't have hard water as reason you didn't have it cleaned every year for the warranty?
sportster1988 (11 months ago)
Thanks, Tex!
Court (1 year ago)
Risk of cold air entering the flue and freezing the heat exchanger ruining it. Having to install an enormous capacity unit to cover more than one use at a time. Fouling of the heat exchanger due to hard water. Low numbers of cycle life. Larger gas lines. Minimum flow requirements. Higher cost. More complex system a with greater failure probability. All for a marginal decrease in energy use. They don't make sense for anything but occasional use.
Easyshopy Tech Talks (1 year ago)
Hey MattThanks for you awesome video and I tatally agree with you review on water heaters, Howerver, AO Smith HSE-SDS Water Heater is the best one I could find. This has all the feature everyone need. I love this water heater and would highly recommend it to everone. get the deals if you like here https://goo.gl/9868mA or https://goo.gl/mLsP2E. Thanks again for this awesome video.
Daniel Alamo (1 year ago)
We have one and really hard water. I have to flush ours about three times, or more per year. Also, the worst part, those minerals that make the water hard get turned into solids and plug up the water lines.
Daniel Alamo (1 year ago)
antv38 we had one. It didn't make a difference. We tried a different water softener company. They said they couldn't do any better than what we had. Softener hasn't worked for about 3 years. We have culligan water softener and rinnai on demand water heater. The rinnai has lasted 12 years with a 10 year warranty so it's about done. Also quite expensive and not worth plugged water lines. I have to listen to my wife complain and I have to waste a day off taking stuff apart and dig out hard water deposits. I think we'll go back to electric. We have solar now. Regardless gas/electric, with a tank, the solids settle there and don't clog any lines or valves. You have full pressure. No dribbles. No turning on two faucets just to have enough draw just to get the water heater to start.
antv38 (1 year ago)
Daniel Alamo water softener my friend. Great investment for your tank
moo cow (1 year ago)
THEY ARE A WASTE OF WATER AND TAKES TO LONG TO HEAT WATER .PLUS YOU'RE PAYING FOR GAS AND ELECTRICITY BILLS FOR IT
Thaylor Harmor (1 year ago)
Good video, thanks!
clkoontz3 (1 year ago)
Any worth while electric tankless yet?
rose sullivan (8 months ago)
I am looking for an electric tankless too
Tom Culp (1 year ago)
You said you would not have hot water if electric was out. Well neither would you have any water pressure either.
Phoenix Franks (1 year ago)
Failed to mention that on electric tankless heaters, the gauge wire you need to run from the breaker box to the unit will typically be pretty expensive. So if the heater is far from the breaker box, it'll cost a decent amount for the wire. Heater tanks use a smaller amperage and smaller gauge wire.
Interesting
Tom W (1 year ago)
They are terrible. Don't buy one. They do not work at all. Unless you are a plumber and feel like fighting with it all of the time.
Pope Thomas (1 year ago)
Tom W 20th9
bodyworks20102014 (1 year ago)
Most tankless can it output 2 to 3 gpm of heater water, this means that, at best, tankless can barely supply one shower at a given time, and only if the showerhead is restricted to 2 gpm...
ken hershberger (11 months ago)
Most tankless now will run 9 GPM
Sarabjit Riar (1 year ago)
They suck....do not get these. Constant problems. The savings Won’t be worth the headaches and the savings are not much compared to other direct vent units. With boilers, get something that won’t require constant upkeep. It’s not cheap having these guys come home to fix stupid error codes.
jeremy beverly (1 year ago)
Never buy a tankless water heater.
Poonam J (6 months ago)
Cause Jeremy can't afford it. He is happy with his 20 years old hot water tanks.
Retired Top43 (7 months ago)
Why?
I got a rinnia natural gas...works great instant hot.. just like waiting for the pipes like a tank water heater..saves me money ..my gas is about 25 a month average . Going on 5 yrs .idk about electric ones
michael haiden (1 year ago)
What about the total electric models I want to get away from propane due to the high cost
John Halchishick (1 year ago)
we have a tankless I don't like it .Had to be rebuilt around a grand.Also we get different amounts of hot water at different spots in the house.
Just worthy (1 year ago)
Omg you better have water as clean as the water in heaven or these units plug up fast!
Señor Gar (1 year ago)
I'm on a well with a storage tank and bladder for pressure which causes pressure to vary between pump cycles. This in turn causes annoying temperature changes with tankless in the shower due to varying flow/time in the heat exchanger. Switched to a standard (tanked) water heater to solve the problem. Also hot water arrives faster now since my tankless was a combi (hydronic floor heating) and had to fire the boiler to feed hot 'floor' water to the heat exchanger.
Señor Gar (1 year ago)
The well is not the issue. It is the storage tank bladder that delivers a declining pressure between pump restarts where the pressure increases again. Pressure affect flow and time exposure to the heat exchanger and therefore temperature. I asked the plumber for a temp controlled shower valve but insisted a pressure control shower valve to avoid searing toilet flushes (or other ex shower concurrent water use) was the best option. I disagree and and a conventional hot water storage/heater was an economic decision over rebuilding the shower stall and wall to upgrade the shower mixing valve. A quick shower and rinse was never a problem but the long hot soaking sore muscle showers were. Possibly the dedicated DHW tankless heaters offer better control but my comments are based on my experience with a combi unit primarily used for hydronic floor heating and DHW (Viessmann Vitodens 2000 circa 2002).
I too am on a well..i commented earlier. Mine is a rannai I have had absolutely no problem..was a little pricey..3000 professionally installed..lifetime warrenty.
michael haiden (1 year ago)
Señor Gar I also have a bladder tank the small one I got 2 big tanks and married them up walla
G Daddy (1 year ago)
We have a Rinnai tankless water heater and a Halo 5 water conditioner with the ION Stick. 1 filter before water goes into the Halo. Then there is a Nuvo h2o water filter, then there's a larger pre-filter before water enters our Rinnai tankless water heater. We can run 3 showers with hot water at the same time with no loss of pressure!! We also installed a Insinkerator instant hot water with motion sensors in each bathroom. It use to take 3 minutes for hot water to reach upstairs??!! Now it takes 25 seconds to the master bathroom! Then we added a Pelican 6 stage reverse osmosis system hooked up to my ice maker and drinking water. Yes it was expensive, but we wanted our stuff to work and last. Without any problems.
1keykneedeep (1 year ago)
What about high AMP draws during usage? Most customers complain they dont save anything over typical tank heaters.
Ny Chan (1 year ago)
My electric does me fine .one bill .
josh stoops (1 year ago)
You just perpetuated a myth insulation doors create heat you have to have a heat source for insulation to work
Veronica Deras-Roiz (1 year ago)
What is the best brand that does not require gas
Tro Rt (1 year ago)
I’ve had mine for 9 years now with zero trouble. This video missed a few other important factors. 1. Requires a larger diameter gas line than a tank heater. Depending on how the existing pipes are plumbed, this could be a real PITA. 2. Plumbing routes must be changed to get cold water feed and hot water out. Could be a real PITA if pipes are not accessible with cutting wallboard. 3. May need to add an electrical circuit to the new location of water heater. 4. Size of heater. Get bigger that you think you need. While hot water is endless, water pressure is not. I’m considering modifications to create discrete upper and lower floors hot water with a second unit.
Greg Woodruff (1 year ago)
Is it possible to hook up a 50 gallon storage tank to hold the hot water and the tankless heater heats the water in the tank?
Rocko99 Rocko99 (1 year ago)
Yes you could
Stephen Larsen (1 year ago)
That would be a large expense to essentially make a standard water heater.
Cali Valley (1 year ago)
I currently have tanked gas water heater that is installed in the garage. Also I have a whole house water filtration system installed prior to entering the house. I want to go from gas to electric tankless to benefit from a solar power system. Would this be cost effective? I'm in the central valley of California.
Stephen Larsen (1 year ago)
Probably not. The most cost effective hot water are solar water panels on the roof. Semi-hot water would be free in daylight hours. Talk to a solar installer about what your current solar system can keep up with.
Lurkn (1 year ago)
Plz sub to me
Keith Tomczyk (1 year ago)
You also must know that they are not that efficient if you have very cold ground water. Tankless water heaters sold in Michigan have to state this.
Mike Pritchett (1 year ago)
#BreakingBad #E209
hellcat1988 (1 year ago)
Another thing they don't tell you is the average tankless can only raise your water by 30 degrees f or less depending on your climate, fuel type, and incoming water temperature. That's fine for most people, but not if you want water over 100 degrees.
S. Tapia (8 months ago)
My Tagaki I believe that's what it's called goes to around 160 degrees. I can change the temperature from inside the house.
hellcat1988 (10 months ago)
Greenid Guy :. I will admit that gas fire tankless heaters are better, but the electric ones suck.
Max MAX (1 year ago)
I have had a tankless for 5 years and will never go back to a tank
pro insanemonstababy (2 months ago)
How would a tankless water heater be installed in a cape cod style home where the current heating system vents thru the center chimney? If someone has a video that would be awesome.
INKMAN ONE (1 year ago)
I've had mine for 9 years and LOVE it...cut my gas bill by more than half and never ran out of hot water.
John Bennett (1 year ago)
Max MAX what brand of tankless do you have thx
eric heine (1 year ago)
I've been a plumber since 1978. I will sell and install tankless water heaters. I will even show up and descale them. You can use white vinegar or 2/3 water and 1/3 CLR. I just wouldn't put one in my house
MsWhocares14 (2 months ago)
Would it be possible to hook a water tank up to a tankless heater... Like say I used gravity to get the water flowing? If no, any suggestions on how to get water flowing to the tankless heater system?
eric heine (10 months ago)
Samoh Kul stick with the standard water heater, get an ion rod zinc, put in an in-line particulate matter filter ahead of the water heater, Change the drain on your water heater to a good quality brass hose bib, so you can flush your tank without screwing around with that crappy piece of plastic drain valve. People read about the failure rates of tank water heaters. But when you think about how many of them are still in service in America, that's a lot of water heaters and they work pretty good for a long time. Computer free analog technology, that's what I love about the toilet. Pretty clever huh.
eric heine (10 months ago)
Greenid Guy , If you had a tank you could use an ion rod. They make ion filters as well. Reverse osmosis setups, there's a solution, you just have to throw money at it. Sometimes I even recommend Culligan.
not disclosed (1 year ago)
#17: No emergency water supply because it doesn't store enough water.
Matt Risinger (1 year ago)
+not disclosed excellent point!
All RC Aircraft (1 year ago)
Great video. One question, if putting in the basement by your HVAC unit, can you exhaust the unit through a ‘T’ into the existing flue on the furnace? Or do I have to exhaust through a separate vent? Thanks.
antv38 (1 year ago)
John Dueck no way to share venting.
Mark Cain (1 year ago)
John Dueck It is not code to share the furnace PVC vent line with any other appliances. Mark at United Home Inspection.
John Wedzicha (1 year ago)
Your idea won't work since most high-end heaters have concentric piping, which act as an intake and exhaust. Where as you can pick up units on eBay at 1/5 the cost of the Italian Stallions that have been serving me well for many years outdoors in the Pacific Northwest that give you the exhaust option.They use PVC piping on most units. So your exhaust temperature is not a worry. At freezing or below have a dripping faucet.
Mike R Knot (1 year ago)
why is the t&p on the gas inlet on plus you can put a battery backup like for a pc if the power goes out
Pat Matt (1 year ago)
I like mine except the cold water "sandwitch" . More wasted water. Im thinking about a solar water pre -heat, not sure it even exists.
Stephen Larsen (1 year ago)
Anything is possible with a good contractor/plumber and enough money!
Jameson Cross (1 year ago)
Matt, you're awesome.
Matt Risinger (1 year ago)
+Jameson Cross thanks! Best comment today!
michele vitarelli (1 year ago)
We had a Bosch tankless and went back to a conventional tank. Tank is cheaper and no maintenance.
3Xcollasso (10 months ago)
Didn't know that. Also, thanks for the tip, and the information. I bought a sump pump, and vinegar, for next time.
Robert Slackware (10 months ago)
yes, same with water filters, and water softeners. read that 4 point font gibberish closely...... Not just a plumber, usually says licensed certified plumber as well. Remember, their job is to NOT have to pay. Now since plumbers charge by the hour. You could flush it yourself the night before so it only takes him 10 minutes to flush when he gets there.
3Xcollasso (10 months ago)
Are you saying that if I allow a plumber to flush my tank less water then that is within warranty, but, if i do it myself, then that is out of warranty? Thanks.
Robert Slackware (10 months ago)
yes if you don't mind voiding the warranty you could.
3Xcollasso (10 months ago)
fyi, you can do the maintenance (flushing once a year) yourself, if you want. Save the plumber bill.
Miguel Castaneda (1 year ago)
k you do not use flex line another the vent is not the same as a standard water heater..on this sysyem its a combo it actually is a exhaust and intake...a stamdard heater will last decades ...if you flush out yearly and replace anode...and back to tankless other countries have a battery powered unit ..a household of two battery will last 2 years.one of 5 will need to replace yearly...these are being used in mexico run around 500 US dollars little pricy but is coming down as users go up
eric heine (1 year ago)
You have to descale them once a year,$395 in California. A tech will not look ay or diagnose your tankless water heater in less it has been descaled in the last year. It's cheaper to not descale them and throw them out after 6 years and buy another one. if you have a tank water heater, with a check valve, you have that volume of water to drink in the event of an earthquake. I still install them, but I wouldn't put one in my house. Iron American Dream on YouTube Share it. Take a ride across the promised land. Ride a Harley.
WanJae42 (1 year ago)
eric heine You need a couple gallons of white vinegar from the grocery store, a 5 gal bucket, and a $30 nearly disposable water pump from Harbor Freight. There are piles of videos to walk you thru it, including one on this channel. It takes an hour, and I do it while I change the oil in my car. $400 is steep. I take a picture of the system pumping as "proof" that I do it each year.
Mark Webber (1 year ago)
Another key consideration is minimum flow. Many oversize their systems the don't know why they have poor performance at low flow rates or when the temperature differential isn't great enough at lower flow rates.
Jeff Braun (1 year ago)
I live in MN and have read in cold climates where the water temp coming in can't be raised high enough with a tankless water heater. My wife likes really hot showers and wondered if even the biggest tankless systems can raise pretty cold incoming water fast enough.
Cory (1 year ago)
I wish you talked about electric ones. I've had some issues with them
Diana Jo Rossano (1 year ago)
Is there a tankless water heater for off-grid?
Roy Cogswell (11 months ago)
I have one of these and love it, I got it on Amazon. Camplux 5L 1.32GPM Portable Propane Gas Tankless Water Heater Low Pressure Startup and Outdoor Shower Sold by: Camplux . You do not need to plug it in it runs on 2 D cell batteries. $119.99
Stephen Larsen (1 year ago)
You may be able to get away with a solar water heater. Basically black pipes arranged to heat up in sunlight.
Pat Matt (1 year ago)
Diana Jo Rossano There is a you tuber named starry hilder. She uses propane tankless water heaters in her of grid home.
nanitaheart (1 year ago)
We changed to a tankless heater and I hate it! It takes ages for hot water to come to the shower and if you don't have the water on full blast, it gets cold. Worst decision I ever made to change my heater!! :'(
va911 (3 months ago)
Buy a good quality Tankless in conjunction with a storage device?? Didn't you basically just make an electric water heater??
Retired Top43 (7 months ago)
What kind of storage device?
Steve Frost (7 months ago)
Matt Risinger
mark fellows (9 months ago)
Thats why I explain to them how to do it and the reason there heaters are set at 120 after that there in control of the screwdriver (bye the way you do know that turning your stat up voids the warranty)
Springtime Plumbing (9 months ago)
Mine is set at 125. Someone gets burned from a water heater that you set at an elevated temp, and you are gonna get burned as well. Particularly since as a pro you should know better. Not gonna take that chance with my business and my license.
David G (1 year ago)
4th thing you should know: Pressure balance faucets interfere with tankless performance. If you have a pressure balance faucet, and you do, the tankless water heater won't perform to expectation. Not worth it. 5th thing you should know: There's a lot that can fail on a tankless. You'll be paying a lab-coated technician to figure out your particular issue. Ch-ching! 6th thing you should know: You'll be using way more gas and electricity than you did with a conventional water heater. Thanks for saving the planet, sucker!
Matt Risinger (1 year ago)
+David G that's funny.... I totally had those but was worried a Top 6 video would be too long. 😂. I agreed about 90% with you here.
John Knoblauch (1 year ago)
Question. I had an early tankless water heater in the mid 80's. Propane fired. There was a rubber diaphragm that worked out great until it had to be replaced. I couldn't get the repairman to tighten the bolts correctly. He insisted he didn't have time to do it right. But he kept coming out nearly weekly to replace it until I ripped the $700 unit off the wall & put in a tank heater. Have they eliminated the diaphragm from modern units.
Tyler Lowden (1 year ago)
I've been putting these in for years. And they are valid points. Well done on providing solutions rather than just complaints. Also good point is proper sizing. Good video
keekeemyfirstcat (6 months ago)
For 1 -2 people what is the size to get?
Pernell Thompkins (9 months ago)
Tyler Lowden i
vipleather (1 year ago)
I want to put one in coupled with my electric water heater. So when the power goes out and I go to generator power will I be ok. So incoming cold water goes through the tankless first which will be propane and feeds my water heater tank. What do you think. Plus I'm on a power package where I pay .05 cents per kWh off peak vs .26 kWh on peak. Install a couple of timers and control both.
Steve Logan (1 year ago)
Great video as always Matt! I have a question if you dont mind, is that Rinnaie the RUC98in? We are thinking of this model along with a Rheem and maybe a Takagi and having some trouble deciding. I have found some decent reviews on sites like http://tanklessheaterguide.com/ and others like it however still not sure. Is it possible to connect 2 Rinnais together if you have really high demand? Thanks in advance!
vistagraphsnet (1 year ago)
Marey.com offers one thru Home Depot that does NOT require electricity and runs on two D cell batteries. So your electricty goes out, with Marey you still have hot water.

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