Ask This Old House | Tankless Heater, Retaining Wall (S16 E11) | FULL EPISODE

[@augustreil]

Take notice everyone, at 9:08, Teflon tape AND Pipe dope, guaranteed no leaks. And that's the way best way to do a retaining wall. Excellent job.

[@jblyon2]

Gotta have a little pipe dope Mama

[@augustreil]

@@jblyon2, HAHA !

[@harishrana9195]

I had tankkess water heater in my house in UK way back in 1977.

[@JW-so4fc]

We miss you ROGER! Be well. I grew up watching and learning from this show...GOD Bless you all :) FYI STAY AWAY FROM THE ACCUCUT...IT WANDERS ALL OVER EVEN WITH THE CLAMPS....

[@MrItsthething]

7:10 I think the cold water coming into the water heater goes through the second heat exchanger. The flue gas is colder at this point and it takes a colder fluid to extract heat from it. It's also stainless because it's cold enough to condense the water in the flue gas, which reacts with CO2 making carbonic acid. So, it has to be more corrosion resistant.

[@zack9912000]

Yep as usual richard us wrong

[@RayR]

Love this stuff.

[@mirodilmirzakhmedov9287]

Great channel! Great team! Thank you!

[@civilengineerrajkumar7428]

Good Job

[@demonknight7965]

gonna catch some flak for this. I hate to see the old Crew like Roger Retire n leave but I think they need to Continue this and TOH shows into the Future. they are Both Very Important.

[@TheArfdog]

In Asia, the on demand hot water unit is at every usage point. Usually only one per shower. In Thailand you usually don’t need hot water at the other taps, it’s so bloody hot.

[@wmeemw994]

Germany uses electrically heated hot water heaters at demand points, but not zero tanks, 1-2 gal. uninsulated plastic tanks at every sink, tub and washing unit (dishwasher or laundry washer).

[@kkknotcool]

@@wmeemw994 That sounds expensive.

[@t1n4444]

A very neat job on the boiler. In UK we have combi boilers running off gas or LPG. Boiler supplies central heating system, primary circuit, and domestic hot water, indirect as it were. They don't store hot water. Not quite instant hot water as depends on pipe runs of course. Pipes should be lagged, but experience says pipe lagging not that efficient. Some people run instant electric showers if they don't trouble with a bath. Similar units for instant hot water to wash hand basins. Very recently we have seen for use in kitchens an instant hot water heater and cold water unit called a Quooker. It supplies water at 100C and also cold sparkling water. 100C water might be considered madness but used in cooking. These systems eliminate hot water storage but might require water softeners in hard water areas. Some folks tee off hard drinking water for health benefits ... allegedly hard water leads to less heart problems ... rpt allegedly ... From 2025 new build houses won't be sold with gas heating appliances and HMG are reducing our reliance on fossil fuels where they can. Will presume new housing estates are to have electric cookers and jobs only. Possibly local authorities won't allow oil or LPG appliances either and make areas smokeless zones to dissuade people from cobbling in solid fuel stoves. We see more ads for electric radiant heating units as well as. No plans, as yet, to prevent gas heating in older houses. So enjoy these systems while you can ... nobody knows what legislation changes yoi might see from future legislative authorities. Rather liked that retaining wall system, especially with those angled side faces for building curving walls. And eliminating the need for mortar, presumably allowing water to seep through wall where a back drain isn't installed.

[@MojoPup]

That is so cool! I did not know about that crossover valve, excellent idea for the home market.

[@SuperHooverdam]

So what do you do if there is no power. Does it still produce hot water? I’ve looked into those but still cautious because I live in an area that has high winds and tornadoes causing power outages.

[@nusermane1076]

Without being a professional I would suggest to get some kind of backup power, an ecoflow or similar. These heaters don’t consume as much electrical energy as the resistive ones do, since they need power only for pumps and control. So a battery based backup should get you covered for some time, especially if paired with solar 😊

[@jbhootgrass]

3/4" minus gravel for the base is better under the retaining wall than 3/4" clean gravel as it is better for compaction as well as drainage. The 3/4" clean gravel is great for behind the retaining wall.

[@dangerousmythbuster]

The last ATOH video regarding a tankless water heater I watched was the one where they had to replace one they had installed after it had failed.

[@tl7209]

tankless water heaters are getting very good. but they do require yearly maintenance to stay productive. I for one am disappointed they never mention that on this show. the water is heated up so fast in the copper heat exchanger he showed that it leaves deposits on the walls of the copper pipe. once a year you need to flush a cleaner through the unit to dissolve the deposits. you can buy specialty solution mixes for 30$ or go to your local grocery store and buy plane old vinegar to clean it out.

[@Fattony6666]

That last one I watched was where a tank water heater failed and they replaced it.

[@SIRWHEELZ4084]

I've missed these videos with Roger as part of the crew.

[@nadinejohnson2189]

🕊️Ask This Old House 🏡 Much Love 💕

[@johnstraley9057]

Seen this vid before. There are too many components in that new water heater just waiting to go bad. I'll stick with my stainless steel indirect system, going on 23 years with no issues.

[@holden_tld]

lol my water heater was installed in 1986 and my furnace in 1960. i'm happy my house is still there when i get home from work.

[@johnstraley9057]

@@holden_tld They don't make them like they used to. My Dad's boiler is 67 years old made by the former Federal Boiler of Midland Park, NJ.

[@spencerwilton5831]

John Straley I wouldn't be at all surprised if an old, cast iron boiler with zero electronics was still running after a century. I grew up in a property with a boiler dating from the thirties and it would still be there today had the outbuilding it was located in started to collapse. The pay off is of course massive inefficiency. As much as half of every penny spent on fuel goes straight up the flue. In a large property with an old boiler, a modern, efficient replacement will pay for itself long before it fails, even if it fails sooner that we might like.

[@larrytornetta9764]

Tankless water heater needs a water softener or you have descale it once a year or so.

[@zack9912000]

Yep the hard scale kills them, they need flushed every 6 months if no softeners are installed.

[@JasonMMoreno]

@@zack9912000 or a pre descaling filter.

[@zack9912000]

@@JasonMMoreno It definitely helps, even with one or both they still must be flushed once a year

[@CalbertReef]

Good point but the severity of the issue really depends on where you live. Some areas do not have issues with hard water.

[@zack9912000]

@@CalbertReef You can and still get mineral deposits that cause them to fail.. They all need some filters

[@bighammer3464]

Am I missing something? Wouldn’t a regular tank hot water heater also have cold water in the pipes that still needs to get flushed before hot water comes out? The tankless might take a little bit longer to get the water hot but surely it’s not that different

[@iwiredit]

Here are some thing to think about If you are looking to have a tankless water installed . Some Big upgrades need to happen , but ill never look back on a tank style water ever again, endless Hot water is a must. And These things are a Luxury Appliance and special care is needed when you own one. About 5 years ago I install my own Tankless water heater. Rinnai RUC 98. 199,000 BTU NG (Natural Gas) With this Unit I can have 2 showers running same time and laundry and dishes going and have all the hot water you need. So size correctly , First thing, I had to call the gas company and have them remove and replace my 200,000 BTU gas meter with a 400,000 gas meter, No charge to me. (Most standard mid size older homes have a 200,000 BTU gas meter in case your wondering) (So before you have one installed make sure your Gas meter is sized for it.) Then I had to up size my gas pipe going into the house from 1" to 1-1/4 gas pipe from right out the gas meter into the house. (Most homes only have a 1" Gas pipe going inside. That will no longer be big enough if your home has mainly gas appliances such as Stove, Dryer, Furnace. 1-1/4 will be the next size up and that works) Once inside my house I reduce back to 1" gas pipe to feed the tankless unit because a 199,000 BTU tankless unit needs that much gas volume. A 400,000 BTU GAS meter and bigger gas pipe are crucial for these thing to have long life, 20+ years If installed correct and make sure you flush/ descale with vinegar every year or every other year. Videos all over on how to flush tankless your self not hard what so ever. You will also need a circulating pump if your house is like mine where the unit is far away from water faucet's. If not you will waste all gallons of water down the drain while you wait for Hot water. My system has a Hot water Loop which means I have an extra hot water line that go's out and loops back to the unit to circulate Hot water. The circulating pump Im using is by a company called fasterhotwater.com Best pump you could ever buy for tankless water heaters.. No setting timers which never works out right and no BS programing when you think you may need hot water. This pump works on demand. If you want to call for Hot Water all you do is go to any Hot Water faucet in your home and turn it on for Only 2 sec. and turn it off, The pump will activate and cycle on for a few minutes looping hot water through your pipes. The pump will then turn off until you call for Hot water again, So no wasting water down the drain while you wait for Hot water, saves you hundreds of gallons of water a year. Just let the pump cycle. Now that your pipes are charged with Hot water you can use all the hot water you need. No other pumps can compare. Check them out fasterhotwater.com They have pumps for all systems tank style or tankless.

[@LayDeeTee1]

Good info...thanks for sharing👍

[@jasonjayalap]

The fabric liner behind the retaining wall lets water pass through, right?

[@ElectricGears]

Correct, it's often called filter fabric. It stops the water from washing fine dirt into the gravel behind the wall, plugging it up and rendering it useless for the intended purpose of keeping the back side of the wall dry.

[@briancorbett793]

I recall a recent video about no longer using DWV pipe as a flue gas pipe....i see in this video using DWV??

[@tigerbatman7881]

its not dwv. its schedule 20

[@JrGetty]

❤track saw idea

[@marijkeschellenbach2680]

Richard, maybe you can talk about the hard water issue. I live in Yuma where the water is very hard. Thank you in advance.

[@BAW556]

Only thing I don’t like about tankless heaters is the sediment that ends up clogging everything. We even had multiple water filters and it would still clog fixtures up. Which also lowered the water pressure due to the filters

[@Jesse-gv9tf]

pull the faucet aerators and shower cartridge's for cleaning once a year and you'll be fine. Not the end of the world pal.

[@BAW556]

@@Jesse-gv9tf never said it was. And it’s more like once a month

[@spydirty2530]

You’re obviously pretty upset. Maybe you should have a midol and some chocolate

[@BAW556]

@@spydirty2530 yup you’re right I’m upset, 😆 for stating a problem I “had” at a previous home. 😂🙄

[@CalbertReef]

Does your area have hard water?

[@susanhoxter1566]

Can turning the hot water off and on again multiple times, say to hand wash dishes, cause damage to the pump?

[@grizzleypiper]

Loved the recirc line for the tankless water heater. What Tankless water heater do you recommend for a 4/2/2 house in southeast Texas?

[@donnahimpler8261]

Glad to cross your showmenship ....great teachers and listeners.Mankind Masters.

[@robertoler3795]

it works great we have it in our three story

[@liammcgough9969]

That was a amazing!

[@mking3219]

Is it possible to install a tankless water heater into a modular home?

[@brianshelley88]

Water goes the other way but overall good explanation

[@wmeemw994]

Where did he exhaust or outflow the perfect pipe (drain tile) accumulating water from behind wall?

[@scundoorsup5342]

Your cold water becomes tepid though

[@harishrana9195]

I am puzzeled with this: my gas bolier warer level glass tube fills up itselt to the top and beyond during heating. This started with last year. It auto fills and cuts off when water reaches the level. Howere, water keeps filling real slowely all way up on glass tube. So I have to mannually empty over filled water to the marked level. Not sure if auto filler unit is leaking or something else is causing over fill. Any idea?

[@ovidiuciuparu6421]

How deep you have to dig the trench for the wall and how much gravel you have to add under the wall?

[@CalbertReef]

Just a thin layer of gravel on undisturbed soil underneath the first course of pavers. Helps to level it out (versus sitting on soil only).

[@CalbertReef]

The height of the wall will determine depth/design. Higher the wall will generally require deeper wall and if you get high enough a concrete footing may be added for the pavers to sit on. He's only down a few inches to help lock in the first course against hydrostatic pressure and freeze/thaw pressure pushing out on the wall.

[@user-vz7tj4hq8b]

Mr trippi is the best

[@scottcbarlow]

Hello all. I have a fireplace in a little older Mobile Home. Around a 1994. The lining inside the fireplace seems to be showing a crack or two in it. What can I do short of not using it any longer? I've been watching yall for y3ears and thank you so much for all the great advice and inspiration.

[@jsmcguireIII]

What exactly is hut wahda?

[@robertaccorsini4663]

WOW, looks great but a lot of work

[@edwinmoreno2970]

Hello, for a recirculating system, my supply lines under the bathroom sink are 1/2 wall & 3/8 to faucet, should I change to 1/2 wall & 1/2 to faucet for the bridge to work better? or leave the 3/8 as it. I want to be sure I get the most efficient. Thank you.

[@Fattony6666]

no

[@drewbush6535]

Great info

[@yourgooglemeister6745]

PVC pipe for gas exhaust?

[@jeffreyrichardson]

Indirect fired water heaters from Weil Mclain are guaranteed for life.

[@frankm5019]

Tankless water heater has exhaust and fresh air in one hole through the side of the house?.would like to see how rich did that

[@willschultz5452]

Ive heard these units burn out every couple years, atleast the electric ones. I'm thinking of getting one but I have gas service and I need to get rid of my chimney anyway 🤷‍♂️

[@bg147]

With a regular hot water tank, I have to wait for the hot water to reach the faucet. Why is this a bigger issue with an on demand heater... or is it not and just a general problem with any form of hot water heater?

[@1TheBestInTheWorld]

Your pipes are not insulated. With a regular water heater it will be warm after a while but never cold if insulated properly.

[@grassmanBoca]

This is why I hate people telling us what we need but not the draw backs of the product

[@kkknotcool]

It's price.

[@virgil3241]

I won a complete tankless system at a home show and got it instaled this spring. Was a hard decision to make about changing out as I had only a 2 year old power vented tanked system. While I like it, there are some things I dont like it compared to tanked after 6 months of use, there are some things I do as well. But I assume it does save me money not having to heat 50 gallons and keep it warm.

[@LayDeeTee1]

It would be really helpful for us that are considering tankless for you to share the pros & cons you've found since you've had both systems. 😉

[@virgil3241]

@@LayDeeTee1 This was a straight swap out, so I didnt add anything that recirculates like the video shows. I might in the future, but as it sits now. PROS 1. Unlimited hot water, so a deep tub we had that would use almost use up the entire tank of hot water, no issue now. Or multiple showers in a row with a family of 5, no more running out. 2. Not heating up water all the time to keep hot when you need it. So if you are away all day or over night, the tank just sits, not using Natural Gas. 3. Less space taken up, I can use a lot more storage space in my furnace room 4. Less worry of a tank leaking 5. You dont need to mix cold water to cool off the hot water, since the maximum safe heat setting of 120 degrees isnt enough to scald, so you can just crank your hot water to max and not have to cool it off with cold water. You can bypass that maximum in the control panel if you want it hotter. CONS 1. When you have no power, you have no hot water, unless you have a backup battery. This was something I never even thought of, and its never really mentioned anywhere in the year I looked up things about tankless. This was discovered by accident when I turned a breaker off in my house to replace a fixture, which was linked to a plug the tank was plugged into on the same circuit, and someone was having a shower. And as well, we had a 3 hour power outage in the summer, and as well, no hot water. A tanked system you would never have that issue since the tank will still heat when you have no power (on a natural gas tank) 2. Cold water sandwich as the video explained above, but not a big issue in my opinion 3. If having a shower, and someone else used hot water, as in the dishwasher, you will notice the water will cool off some in the shower, because the tank can only produce so much hot water. Its not a cold water sandwich, but you will notice a slight temp. change 4. Hot water takes longer then a regular tank to get to the tap. While the run is the same length, there is still the longer heating up of the water when its called for, so it adds a few seconds to get hot water to that tap. The circulation method in the video takes care of that, but I havent looked into that yet 5. Hot water in the lines cool off faster, since the original heat isnt as hot as a regular hot water tank, so the original temperature isnt as high, which means the hot water in your line cools off faster. Now, since I won this and it cost me nothing, the Pros outweigh the cons, although it took me a year to decide as well, since Ive only had tanked systems, and replacing a 2 year old Power vented system that worked fine isnt something I usually do. And some of the Cons I never realized until after Ive been using the system since Mar 2020, especially the no hot water wtih no power.. Would I get a tankless one if I had to pay for it if my original tanked one died, that Im not sure of.

[@LayDeeTee1]

@@virgil3241 Thanks so much for the info!😉

[@vit1844]

I thought landscaping was Rogers's specialty!

[@smfd190]

Roger is lucky he's still standing.

[@sephiroth24592]

He had cancer I believe. He's on light duty now

[@vit1844]

@@sephiroth24592 sorry to hear that! Thank you for explaining that!

[@alexgoler7617]

What kind of concrete brick is that?

[@ImTheJoker4u]

Love a job done right 👍👍

[@scundoorsup5342]

So cold water will feel warm because of circulation pump activation

[@craighough5886]

Vented under a window?

[@tinysand3517]

Speaking about venting, I saw he used PVC, can it handle the heat from the w/h?

[@robscafidi4070]

@@tinysand3517 Yes, the exhaust from high efficiency tankless water heaters is cool enough to allow use of PVC vent pipes. Its only about 110 degrees Fahrenheit, well within the heat tolerance of PVC.

[@lindarobinson6739]

Question; could this also happen in the shower? I don't hear it in the sink after flushing the toilet. But I do in the shower.

[@peterputnam3804]

Where I come from that is not gravel, that is 3/4 inch stone.

[@WhiteFox011]

Were you going to insulate the HOT water out to the house waterline? As you know, copper is a great conductor of temperature.

[@MandoFettOG]

I'm sure they would..

[@michaelmccormick8013]

The other catch with an electric hot water on demand system is that your hydro consumption will increase a lot. A gas system is fine, but if you have an electric hot water system you can expect your bill to increase by 30%. My system has 3x 40amp double pole breakers - imagine the power consumption.

[@nhzxboi]

I see more and more that copper crimps seems to lead to more liberal use of couplings. Is that laziness creeping in from the plumber?

[@superspecialty5169]

No check valve?

[@DovieRuthAuthor]

I considered this but the plumbing is so unsightly compared to the hot water heater in my utility room.

[@kdknitro]

Did you see that condensate line across the floor, like a big ole trip hazard

[@DovieRuthAuthor]

@@kdknitro No, I missed that.

[@iamamish]

Please set the clock!

[@daryloya]

Shouldn't that drip leg extend down from the gas shutoff then go over rather than be on the tee feeding the water heater?

[@spencerwilton5831]

He's quite correct is saying tankless heaters have been the standard in much of Europe for many years. What he fails to mention is that new build homes are increasingly returning to stored hot water systems, as tankless have too many issues. They simply don't last long. They scale up rapidly in hard water areas. When they fail you have no back up. A sensibly sized mains pressure cylinder and boiler combination means you should never run out of hot water, and can have an electric immersion element as a back up. A well insulated modern cylinder looses less than 1.5 kWh or energy per 24 hours- a tankless will waste more than this firing up at full power every single time someone opens a tap. Still, anything is better than those antique floor standing water heaters, they are nothing more than an evolution of the Victorian gas fired water geyser. Even when they are not firing, a constant convection current up the flue is sucking heat out of your tank. Ridiculous. Not to mention open vent gas appliances are potentially deadly and have been banned in dwellings for years in Europe.

[@idimidodjimi6760]

You are correct. Gas burners for water heating are pretty much dead in EU. I had 2 over years with 3rd one never installed and sat on the attic for years . We pretty much all use electric boilers, for heating up water. U also have smaller pass-trough boilers on electricity that basically give continuous amount of hot water on demand but they do use more power to achieve it. I even had a electric boiler with inlets from heat pipes from my central heating system so it can heat up water inside the tank while it heats the house. In recent years if anyone that wants to upgrade , they use heat pumps and inverter system to both heat up /cool the house and provide hot water.

[@ck3561]

I’m not against tankless heaters but I guess I just don’t see the benefits. I have a 55 gal water heater, I have a 200gal propane tank and my water heater uses zero power. Benefits in my opinion: Power outage (still have hot water) saves money on power bill (side note, we also have standby home generator) 55 gal water (keeps my mind on conserving) 2 adults 3 kids Only uses propane 200 gal tank I refill tank every year in July for $1.19 per gal (cooking stove uses LP gas as well) Your thoughts? I believe I have a decent practical setup. My father in law has a tankless and his electric bill went up and during winter power outage he has no hot water he is now looking for a home generator (very expensive)

[@stevejensen3471]

Boy ole Tommy and Richard have surely aged and look like master sages of their working arts! With Tommy at 74 and Richard at 65, I wonder how much longer they will deal with the rigors of producing TOH and the associated travel and/or when they'll finally retire from the show? Even ole Norm is now 72 and beginning to scale back! Sad days those will be when the these icons finally retire and what a legacy they will leave!

[@harishrana9195]

US is 20 years behind than europe/ UK on this rankkess water heaters systems!

[@robertsteich7362]

10:43 I’ve lived in Connecticut for over 35 years. At several different houses. Some with an oil fired boiler, gas fired water heater tank, and an electric tankless. None of them, I mean absolutely none of them retained warm water in the pipes from the source. Even the gas fired water heater tank. That water was cold when turned on. Unless it was less than 30 minutes since last use. Winter or summer.

[@augustreil]

Agree. But, it never takes more than 10 seconds to get raging hot water anywhere in the house.

[@robertsteich7362]

@@augustreil I agree with you on that with the valve Rich showed the HO. But I was referring to his comment on the water heater tank keeps the water in the pipes from cool due to convection. 🙄 For the kitchen sink and bathroom sinks. I would rather install a point of use water heater for that initial hot water. Then once the hot water arrives from the main source, the point of use will turn off.

[@augustreil]

@@robertsteich7362, Agree, thanks.

[@jblyon2]

It does keep the water in the pipes warm due to convection...for a few feet. It's the difference between it taking 25 or 30 seconds to get hot water.

[@jasonjayalap]

@Robert Steich Until we get super-insulated pipes, it seems the only way out of the "waste heat (with unecessary recirculation) or waste water (waiting for heat)" tradeoff is the point of use heaters you're talking about. It's a brute force solution, needing either 240V (tankless), a small tank, or gas at the outlet, but I dont see another way.

[@maxHeadroom325rayxerin]

3:04 OMG

[@peterleiza4351]

I was going to buy one till I found out they leak if you don't have a copper core and #2, they want 3200-4000 labor to install it. It would take at least 15 yrs to pay for itself so I'm returning mine back to home depot. It's a shame I bought the heater and all it's accessories. Good luck to those that own them.

[@sirhamalot8651]

Look at how this doesn't move...lol

[@bnasty267]

Richard needs to update his knowledge on water heaters. The on-demand models really aren't that much more efficient than modern tanks. Usually around 8% or so from studies, which translates to a 'whopping' $10-$15 savings on gas every year. In trade for that savings, you have to buy a more expensive unit (basic tanks are usually 1/2 the price) and you need to flush it yearly to avoid scale buildup. The tankless units also tend to have reliability issues, and if the complex circuitry goes bad, you're without hot water until the manufacturer can send a new part. The only good reason to go tankless is if you don't have the space for a tank.

[@Jesse-gv9tf]

I'm not sure about reliability issues. My tankless has been running strong for over 9 years now. I have the outside model and it did come at a premium, but in the end it was worth it to reclaim space in the basement when I finished the basement.

[@tombomombodombo]

Do you have a reference?

[@boxtwo]

So many advertisements that it is not worth watching anymore...

[@LayDeeTee1]

Seriously...I've never seen so many ads as TOH videos have. Geeez. 🙄

[@nighthawkj30A4]

Music is to loud on the Tank less water heater installation.

[@pedroeduardo5509]

Does your tankless heater create scale? Are the people who purchase theses products know how to descale the tank if they have hard water in their community. Plumbers cost 150 - 200 dolars to service the tank. And what about if the power goes down? That means, NO hot water.

[@Lawomenshoops]

The retaining wall- why didn't he use a pipe with a sock covering it? The sock prevents mud and junk from clogging the pipe!

[@CalbertReef]

Not a bad idea but the idea is that the gravel acts as a filter. The socked version is typically used when buried in soil. But I agree with you, I would have used the socked version because, why not?

[@wmeemw994]

Where did he exhaust or outflow the perfect pipe (drain tile) accumulating water from behind wall?

[@Jesse-gv9tf]

What type of person builds walls like this? If I need a new faucet, I call a plumber. If I need a new outlet, I call an electrician. If I need a new wall, who do I call?

[@WFCinSC]

The man helping from Ask This Old House is a Mason (stone/brick worker). You should call a mason. www.thisoldhouse.com/cast/21116923/mark-mccullough

[@williammadden6385]

@@WFCinSC Before Roger got sick, he would have been the guy to go out on this call: a landscaper who doubles in hardscape. (Almost all do, nowadays--kinda like plumbing/heating contractors.)

[@jimsjacob]

That “beautiful little valve” is expensive. $50 a pop and every faucet needs one. I installed that system with my traditional water heater and my natural gas costs increased 3 fold. I had a unit with a timer, but even still, it was cost prohibitive

[@djenson]

I don't think that's the case. Only the tap furthest away from the tankless should need one.

[@jakegardiner6304]

you’re not supposed to install more than one of those valves in the house. only in the furthest sink from the water heater.

[@lrc87290]

@@djenson Header system yes. Home runs probably need one every faucet.

[@thezfunk]

What is it called? Where can I get one?

[@jakegardiner6304]

@@lrc87290 the manufacturer specifies in the manual to only install one crossover valve at the furthest sink from the hot water heater

[@michaelhardy2803]

GOAL ZERO YETI 3000X PORTABLE POWER STATION 200W SOLAR PLANTS 2 GOAL ZERO TEST IT OUT

[@alaire1]

ROGAH!!

[@JRJUNIOR215]

Do u guys even charge these people on the show.?

[@richard416913]

The cap should overlap the front 2” dummy heads

[@bldlightpainting]

KZbin, stop running 99% "woke" ads, which are pathetically racist and pandering.

[@jessethepondhopper8370]

Love the zip ties under the sink lmfao

[@maximiliangeis1422]

Here in Germany it‘s forbidden, to have such a ball valve in the pipe to the Expansion Tank. It has to be protected against somebody closing it.

[@tombomombodombo]

Why are there 3 landscapers but just 1 plumber, carpenter and 1 part time electrician?

[@timothywalsh1550]

Mark is their mason, so all things stone. Roger's had some health issues and is retiring. Jenn is taking his place. So really just one.

[@highdesertexplorer123]

I don’t see how waiting for the hot water to get to the opened faucet from a tankless is a negative being that I have to wait for the hot water to get to the open faucet with a traditional tank hot water heater.

[@PrannoyChauhan]

Made in Mexico 🙂

[@scundoorsup5342]

You actually end up using more gas because the hot water never runs out , hence longer showers . Not smart

[@ProBackgammonequipment]

Two people are renters.

[@fredgrebner526]

Although it may be code an expansion tank isn’t needed for a system with a tankless water heater.

[@rafaelsays175]

These water boilers have been in British homes for the past 30 years.

[@steve_main]

So with a recirculation pump you are going to get hot water in the cold water pipe. So when I want cold water I will have to waste water till it gets all the hot water out of it. LOL you are just moving the problem to another spot. I guess if you don't care about cold water it matters less, It's choosing what problem is worse and solving it instead. If you think about it, if I set the timer for 7:10 AM and my shower is at 7:15AM ill have hot water at full temp right at the valve. But ill also have the cold water line full of hot water so I have to wait for the temperature to normalize before I get in anyways or else it will get colder after 5-10 seconds as the hot water leaves the cold water line and gets colder. Really its not that great of a solution unless all you care about is hot water only at a sink and cold is never used or worried about

[@TylerRing]

Once the hot water reaches the cross over valve, the valve will close. No hot water in the cold side.

[@steve_main]

@@TylerRing so it would have a temp sensing valve on it?is it not just a one way valve?

[@TylerRing]

@@steve_main There's not a sensor in it, but a metal stop that when it reaches a certain temp (between 95-98 if I recall) will expand and close the valve so no hot water flows to the cold side. Once the temp on the hot side drops, the metal contracts and opens the valve again.

[@Byron88]

except now your cold water lines are filled with hot water all the time so you run the hot out until its cold...... NICE...not

[@TylerRing]

No. Once the hot water reaches the cross over valve, the valve closes.

[@kobirelf97]

This makes me laugh someone who loves this old house and who lives in the UK this is what we call a boiler a combi boiler the most common type of boiler in the UK and the best type of boiler you can get

[@walterbrunswick]

Unless you have a recirc loop (external preferably, internal okay), they aren't that great as they take a while to heat up The best solution would be to add a small buffer/storage tank with a circ pump and aquastat, to keep a reservoir of hot water ready

[@walterbrunswick]

They are somewhat popular in Canada, but these days I don't really recommend them, for the reasons stated above

[@BiggMo]

While I appreciate the educational value of these videos, TOH helps people that most likely can afford a local contractor. Why don’t they help people that actually have needs.... (Trump 2020)

[@ChakatNightspark]

Now, just replace the tankless water heater with a Electric Tankless Water Heater Much better system, Plus can get rid of all the gas appliance in the house and stop wasting money on a Money pit gas.

[@jblyon2]

Scott is hot!

[@JasonMMoreno]

worth it? when do you see the energy saving costs after the expensive of upgading the gas line, relocating the water lines, installing a pre filter ( besides filter replacements), and routing the vent drafts? feels like you are just doing a tankless commercial rather than giving sound advice.

[@DirtyZiggy]

Super fake backround guys...

[@jeffreyrichardson]

rutland nursery mom and dads adversity university