Love this guy, he's the Scotty Kilmer of plumbing. Thanks for all the great advice Pop.

Mr Grumpy Plumber thank you for saying we can do it because us DIYers thrive on channels like this. Beers to you!!! 😂

Thank you for the quick reply. You're a good man Mr. Grumpy!

Thanks for the great information Jim👍

Great advice on the large on demand, after speaking with the technician he mentioned to me the price difference is peanuts, so big or go home . Cheers 🇨🇦

Yo the grumpy guy is not following the script 😂🤣😆, great video!

I have heard a lot of people complain about the noise. They are not loud but they still make noise that most people don't expect.

I have no problem with on demand water heaters and see the benefits but living in earthquake country I appreciate having a tank water heater as an emergency water source.

Great video. I initially considered going to the largest capacity tankless unit I could find. But as I looked into it, I found that a larger unit would increase the installation cost dramatically over a more modest sized unit for my 2 bath house. I also looked into other factors that influenced installation issues, so be sure to consider the entire installed system cost, not just the cost of the heater. I covered my selection process in a video titled "My Tankless Water Heater Selection Process". I think my tankless unit has already paid for the added cost of it, over putting in a new tank type heater, since it was installed in 2017. In fact, with this "California Climate Credit" program, I've not paid a gas bill since 2018. One note for folks that live in affected air quality districts in California (SF Bay Area for sure), there's a proposed regulation banning the sale of new gas fired water heaters of any type starting in 2027. So if you're thinking of installing one in the future, keep that in mind. I plan on purchasing a spare unit, just in case something goes wrong with it 10+ years from now.

In 2006 I installed a noritz 1st line of commercial tankless heater from plumbing supply $900+ $250 for double wall stainless venting, after 8 yrs copper heat exchanger started leaking. Ten year warranty on exchanger but would’ve had to pay labor. So I bought a new noritz heater with stainless steel 2 stage burners (latest and greatest) $2000+ paid a recommended plumber $500+ for install. After 3 yrs internal recirculating pump started leaking. Pump covered,paid same plumber $300 labor. Plumber normally sells navien tankless , said I wasted my money on internal recirculating pump. Said I didn’t need it. I took my water softener out 6 yrs ago because I had drain it out my yard which killed the grass. Installed scale watcher descaler . This really does work, but had-to clean aerators quite a bit until the last yr or so. I also have a spin on scale filter before the heater. I’m on a well and I don’t want soft water on my drinking water but would it be a good idea to install a small Water Boss softener before my tankless heater? I do have flush valves on the heater (flush once a yr) . My problem is there’s not much room in my utility room but I do have a condensate pump on my furnace that also is gravity fed and taped into my tub trap. One other question, when getting a shower the water will heat up and cool down (you can here the burner’s kicking on and off and you have to make adjustments all the time and it’s aggravating. Does it abound 50% of the time. Someone mentioned it might help to clean out my showers balanced valve? I hope all this makes sense,thanks

What are your thoughts on the Navien combo unit for hot water domestic supply and hot water for the heating of the home's baseboard heating? My daughters house had one (about 10 years ago) and the heating of the house overrided the domestic hot water usuage. If the heat was on in the winter and you wanted to wash the dishes, you very often had no hot water until the heating of the house was satisified.

Most Excellent ¿

I enjoy old schools videos

My current NG water heater is a standard 4-year-old one but since I'm doing a remodel and after this video I am seriously considering going tankless as the updated shower is double the size and will have dual shower heads and wands on opposite sides + a bench and all the walls will be porcelain tile, I want to make it into a spa-like experience and never have to worry about hot water running out. My question is: The current water heater is inside the 2 car garage, this is a one-story house, the vent of the current water heater was annexed to the old HVAC (replaced with heat pumps) exhaust and is (metal). Is it going to be really expensive to make the switch? Thank you for the video

I appreciate your info. I have a question. Is there a particular kitchen faucet style (one handle or two handles) that is better for a tankless hot water heater to kick on? Or should it not make any difference?

Hey Jim - Thanks for the info. My current conventional gas W/H uses a metal flue. If I get a Navien, do I need to install a PVC flue? Can I slide the PVC flue inside the metal flue? Thumbs up.

Thanks to you, I've started saying, "If you don't believe me, ask your dentist...."

Can you comment on these: 1. I heard if a homeowner installs a Navien the warranty is void. What’s your take? 2. In So CA, our gas company says they’ll put in a higher flow gas meter, if the flow was not enough to keep the tankless happy. What’s your take on that? The meter pressure would still be the 0.5 psi (or whatever it is) but the CFM rating would be increased. Also, with these new clothes washers that shut off cold flow very fast, I had problem of the tankless being triggered even with only cold being requested, solution was to install a check valve on the cold feed right at my Noritz tankless.

I have a question.I'm looking at a 110 120 V.On demand for a cabin is that gonna be enough hot water for a shower

I was all hot to trot on my own but discovered I'll need a new gas pipe running the length of the house. Also, I figure the water heater door closet in the house will need a larger air vent for intake.

🙏🙏🙏🙏🙏🙏🙏 Good afternoon Mr Jim ! I am a first time RV owner. I need to change my toilet bowl and was recommended to buy DOMETIC 320…I read TOTO toilet bowl is the best that I have seen but don’t know if Toto can be used in an RV? So far, I have watch over 30 videos already and so far I am convinced you are the best experienced, best knowledge and I will not go against your ideas …because I am just a pianist totally no knowledge as to what to buy…I checked all your videos I did not find anything mentioned about RV toilets…please help your new subscriber here because I am like a blind pianist at least I can close my eyes and play piano but toilet I can not even close or open my eyes because it looks all the same to me physically…please help me of any ideas what brand and model I should buy for 2006 KEYSTONE SPRINGDALE model 298-29 ft…I really appreciate your input before I make mistake in buying…also, can I use a TOTO to my RV? And what model do you recommend? Thank you!!! 🙏🙏🙏🙏🙏🙏🙏

You want grumpy? I went from Apt. complex water-main installation to moving stacks on slab that missed the walls!!!

This is the second on demand water heater video I have seen of yours, but need advice on electric on demand water heaters. I have a 700 square foot cottage that needs a water heater and was interested in going on demand but it is all electric. I hear mixed thoughts on electric units. I have looked at the Rheem, Ecosmart, AO Smith and Stiebel, but I see mixed ratings on all of these. Please review and give you input on these.

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We have the Navien NPE 240A. When it's hot outside, we end up with a horrible smell, like rotten eggs. We are on well water. How can we remedy that? We've put chlorine down our well, which worked for a while, but we do know it's not because of our well. Directly from the well, we have no smell. I understand it gets heated and then organic material brews. But how do we stop that?

Worth noting a couple of things related to tankless, but not related to gas. If you plan to do a tankless installation and you don't have, or don't want to use gas, there are quite a few units out there. Personally, I'm with Jim on go for the best you can get, which is the Stiebel Eltron Tempra 36 (SET36), a whole-house tankless water heater from Germany. That said, the plumbing side of the SET36 is very straightforward, and as Jim suggests, if you are able to install your own tank water heater, then you'll have no problems with the plumbing side of this.* But the electrical work, while not technically difficult, is extensive and cumbersome because of the amperage the unit requires. Retrofitting grannie's cottage would be great... if only she had 200Amp service, because the SET36 requires 150Amp service just for the water heater! That in turn requires heavy duty wire, heavy duty breakers (3 X 50A), and so if you're not technically adept at doing the electrical work and getting the amount of power to the unit, then you may have to downsize to a smaller unit for her cottage. The point being, if you've already got gas, they are somewhat more straightforward and won't require a lot of other upgrades. Electric Tankless will require a substantially greater investment upfront, particularly if you want to put in a whole house unit like the SET36. 🙂 *Just remember to install the tankless water heater kit before you run the power lines into the unit! On the hot water side, you will otherwise not be able to rotate the valve into place because the leftmost hole is rather close to the valve position.

Bought a Navient. Motherboard crapped out barely 2 years old. Cost me labor from an authorized servicer who wasn’t the installer. BTW rebates require an installer not customer

Good morning guys, should you still get one with all electric homes.

Wait so the new Rennai is not good? im looking at the RUSC models

When the power goes off will your tankless work?

Don't for get about an electrical source. Often times you'll need to also pay for an outlet to be ran near the unit sometimes requiring an upgrade of your breaker box.

Show us how Mr grumpy!!

My opinion Rinnai is the best for tankless

What about an electric one?

what if my water never gets hot enough with my gas water heater

Hold. I just gained all this space going with a tankless, and now I’ve lost it all going either a water softening system. Oy! 🤦‍♂️

Really slow at providing hot water when tap is turned on on. (I own one)

Just remember if you install it yourself it won’t be covered under warranty.

I call bs, I've tried 2 now, and ALWAYS had problems with both of them, I'm going old school and staying

OH...I forgot I wanted to ask can you have a tankless water heater attached to a Hydronic Towel Warmer ? Thank you for your help!

My issue with soft water is the salt. Salt can be absorbed through your skin and if you have high blood pressure, which I do, it can make it worse. I have a tankless 2 whole house tankless water heaters and one is 12 years old and the other 14. I don't have a water softener nor have I cleaned the scale out of them and they work like champs. We are building a new home and we will have tankless again but I will add the clean out this time.