Thank you I’m glad to hear someone finally speaking up & addressing this. I bet our house in Charlotte I ran 2 to 3 gal. everytime I wanted hot water. For one thing most hot water heaters were in garage (or most water heaters were) Tankless Water Heaters are just as bad or worse I know that’s what I have now. Thanks for posting this!

Those "on demand" systems seem to be more like "on demand when I feel like it". LOL.

It is obvious that most people replying here really don't understand my original concern. They keep talking water tank, on demand doesn't have a tank. I will be calling a plumber and asking the question. I will start a new thread looking for plumber recommendations. Thanks

Welcome to TOTV

Who are you to call hyperole?

I have a tap under B/r sink which fills container. Takes about 3/4 of a gallon for warm to get there.
I also have an outside storage tank that take diverted bath/shower water from upstairs which I also use on garden.
In winter when full it diverts to main drains.
Also collect rainfall in storage butts from shed roofs.
At our last house we collected rainwater from house roof guttering into underground storage tank which pumped water into house too flush toilets, and also irrigate garden.
Get your own plumbing sorted, and shove your hyperbole where the sun don't shine!

I am not wittier about any wasted water at this time. We selected a new home that was built to avoid going through the build process so it wasn’t a possible add on for us.

Well, that makes sense, obviously everyone in the villages has the same floor plan as you and so THEY are wrong

You know that in some states collecting rain water is illegal, you might want to check.

Do you have an underground storage here? Not sure what the point of that is when the OP is asking how to reduce the time to get hot water to the faucet.

But, thank s fore your rant, I appreciated it, very enlightening.

ahem...

I'm a snowbird renter. Live in UK. and I was replying to a post that practically called me a liar.

ahem...

Whoooo threats are not allowed on TOTV.
Have you always settled things with violence?

Tank in garage
 

If you put a tank water heater in the garage, it still will take just as long to get hot water to your farthest point. The water lines run under the house so installing a recirculation line would either involve cutting the concrete in the garage to be able to get a pipe under the slab and then route the recirculation line underground outside and reconnect at the farthest point from the heater so the water can recirculate. I
The other option would be to route a pipe up in the attic and back down a wall to reconnect. This may be difficult if you have a block home because the water pipes are inside the wall. As a contractor, I would shy away from this attic insulation because I never wanted water pipes over a living area. If a pipe leaks or breaks, you will have interior damage and depending on where the pipe leaks it can get very costly very fast like $25-50K if it is over a bathroom or kitchen.

Here is some help understanding what is possible. Either a dedicated return line, or use the existing cold water line.

Demand Hot Water Recirculating System | ENERGY STAR
Use a Tankless water heater with a Recirculation Loop
Tankless with Recirculation | Noritz
Best Tankless Gas Water Heater with Recirculating Pump #2021

On-Demand/Tankless Water Heaters
 

There are two ways to have nearly instant hot water with an on-demand/tankless system:

1. You install multiple, small, individual, on-demand heaters, at each location where you want instant hot water. In new construction, this means you only have to run one cold-water line to those locations. At the location, you then split the line so as to run cold water to the tap and water to be heated to the on-demand heater. You then install a larger on-demand heater for the rest of the house. You will have a time lag to get hot water to the locations not equipped with a smaller on-demand heater.

2. You install one large capacity on-demand heater for the entire house which fills a small "holding" tank. At the holding tank, you install a recirculating pump. In new construction, you install three lines to the locations where you want instant hot water. One line is cold, the other hot via the recirculating pump, and the third a return line to the holding tank.

In a remodel, you install a Watts pump at the holding tank which continuously circulates water in the hot water lines and returns it to the holding tank in the cold water lines. The Watts system requires that a manifold, a simple tube with one-way valves, be installed at the faucet that is furthest from the holding tank. If the hot water line is "split" and hot water is sent in two directions inside the house, you will need a manifold at the end of each of the lines. This is common in The Villages.

Using an on-demand heater and a holding tank is very efficient. Instead of having a regular water heater of 40, 50, or 60 gallons, all of which must be kept hot at all times, you will be heating only a small holding tank of, perhaps, 5-10 gallons depending on the size of your house. Any plumbing supply house can advise you as to the size of the holding tank.

I know it is an oxymoron to add a tank to a tankless water heater. However, it works and, with the addition of a recirculating pump, is the only way you can have nearly instant hot water throughout the house when using an on-demand water heater.

We are the world 🌎
 

exactly. Wish people would pay attention to the clouds ( water trucks) that transports the water over the planets surface only to release it. Even the dirtiest water is purified by earths soil ( coffee filter) to be released into cisterns and aquifiers. Some states claim their drinking water is 80 years old.
Sidenote:
Next time you see thirst parched animals on the african plains suffering from the relentless heat realize that when the heat blows off of the african coast it heads our way to culminate in our hurricane season.
It's all connected the earth and the universe.

So, you agree you have no foundation for claiming that they should check their facts about their house, you occasionally rent a home here. I thought you claimed it was hyperbole, now you say they called you a liar.

Another internet expert sharing their OPINION.

I give up.
Try reading relevant posts before replying.

Gone.

Byeee!

in other words c ya?

Let's not get ready to rumble
 

idk. U2 always make great points. Maybe back channel diplomacy is needed amongst mutual contacts
please

Don't be a big baby for
god's sake. Turn the shower on and let it run for at least 3 minutes. And WOW thewater is hot.Your sound spoiled kid

I have 2 friends in TV that had Kiley and Sons plumbing install a recirculation system. About $400...
:eclipsee_gold_cup:;)

I don’t know if you pay for irrigation water but it’s just recycled water. But I think TV residents just pay for in house water. Correct me if I’m wrong!

:cry: :cryin2:

You’re wrong. We very much pay for irrigation water. North of 466, irrigation is potable water. Regardless, those of us South of 466 whose irrigation water is reclaimed, still pay for it.

That’s nice but wouldn’t you think with all the complaints about running water & wasting lots of water to get a little in the sink, I would think the contractor would figure something out. This has been a big complaint for several yrs. not saying some people might think why are people so worried about a little wasted water. All I can think of some people might be a little more conservative about how their money is being spent because that’s how they were brought up. We have the same issue here inTexas. But I am an old resident of TV.

Amazing how so many threads circle back to “it’s the developers fault”.

I guess no one is responsible for their own Choices when they buy a house. I even recall someone that said they couldn’t be bothered reading all that paper work when they bought the house, it was the developers fault.

Personable responsibility, seems to be rare

OP here, what did I do? This has gone f’n nuts. I came from an area in the suburbs where we had wells and septic systems. So we didn’t waste water. Let put this to bed. For most of you, just turn the water on and walk away.

Well said.

It MIGHT not work - because it might not draw enough water to cycle the heater on.
It MIGHT void the warranty - because of the constant cycling on and off.

Depends on the tankless heater. There are some with recirc built in.

My hyperbole was referring to MY plumbing in MY home. My hall bathroom is the furthest point from the hot water heater so it takes lots of time to get even slightly warm water. Seriously, I could fill a lot more than a container of water before I get hot any water. I think you may have misunderstood my comments.

I KNEW you misunderstood my post. I was not calling anyone a liar. I was just commenting on what it is like getting hot water to my hall bathroom in MY home.

I like the cold water on my face down here….:sigh:

There’s no such thing as “cold” water here. :clap2:

Problem solved
 

Not cheap though.

I'd wondered if something like this could be done - it's a small electric heater downstream from the tankless heater, right? How did they tap into the farthest hot water line for the return? How "not cheap" was it?

Typically, you don't need a heater, just a small pump to keep the hot water circulating throughout the house. These recirculating systems come with a sensor valve that connects to the hot and cold water lines under the farthest sink from the water heater. This provides the return. If you hire a plumber, you can probably get the pump system and installation for about $300 to $400.

Sorry but you are mistaken. That doesn’t work with a on demand water heater. Oh and your price estimate, you can’t get a plumber to your house for that.

Yes, I think it is 2 1/2 gallons. So far it works great. There is a manifold with a check valve at each sink. The return uses the cold water line. For some reason the farthest one from the source is the fastest to get hot. Almost instant. Over $3k. Installation took about 5 hours.

You may be correct about the cost. But, at least one company, Aquamotion, makes a recirculating pump system that works with a tankless water heater.

A recirculating pump without an additional heater that holds hot water will do nothing. Think about it.

I wouldn't buy one. But, I think the Aquamotion system pumps the water at a slow pace until the tankless heater comes on, and then monitors the temperature of the water in the pipe to keep it hot. When it cools down, the pump comes on again. So, you always have hot water in the pipes in your house.

Placing the water heater near the front of the garage is largely responsible for the unecessary loss. Placing it near the kitchen or master bath would help efficacy.

Fyi; For my Iris, temperature drop from the on demand heater to the bathroom is about 10 degrees so recirculating will waste energy reheating the under ground lines

I've measured less that two gallons of water run before it is warm at the master shower. About right for brushing teeth.

Since we reclaim waste water, It's not completely wasted. I have no idea how efficient that system is.