The answer to the question above about the feed line has produced two very different solutions--One group simply feeds the existing hot water line into the heater and then on to the faucet--or whatever else is on the other side of the heater. Another group T's off the existing cold water line and runs one line from that to the heater--presumably the out (hot water) line from the heater T's into the existing hot water line. It makes more sense to me to put the heater between the hot water heater and the faucet--that will (I think) produce immediate hot water--but as the cooler water from the existing hot water line (the reason for installing the heater in the first place) mixes in with the heated water the temperature will drop until the hot water from the main heater kicks in. This makes more sense to me than T'ing off the cold water line to feed the heater. Any responses to this-- The answer to the question above about the feed line has produced two very different solutions--One group simply feeds the existing hot water line into the heater and then on to the faucet--or... » Read More The answer to the question above about the feed line has produced two very different solutions--One group simply feeds the existing hot water line into the heater and then on to the faucet--or whatever else is on the other side of the heater. Another group T's off the existing cold water line and runs one line from that to the heater--presumably the out (hot water) line from the heater T's into the existing hot water line. It makes more sense to me to put the heater between the hot water heater and the faucet--that will (I think) produce immediate hot water--but as the cooler water from the existing hot water line (the reason for installing the heater in the first place) mixes in with the heated water the temperature will drop until the hot water from the main heater kicks in. This makes more sense to me than T'ing off the cold water line to feed the heater. Any responses to this-- « Show Less
651326
I installed it between the hot water heater and the faucet...it has been working fine....
651327
Yes that is both ways. I installed in the hot water inlet so that once it pulls enough water from the hot water tank then the EMT2 has done its job. Gas is cheaper than electricity for me.
651328
I installed this unit about a year ago and it is doing great. I installed it on the hot water side between the hot water tank and the faucet. That way i never run out of hot water and the instant hot water is great.
651329
You can do it either way. I place mine between the main water heater and faucet sink. That way I get hot water until the hot water from the main water heater get to the faucet. Then the water stays hot.
651330
I feed the heater from the existing hot water line the fed the faucet from the heater, which mixed the incoming cooler water in the pipe with pre-heated water in the 2.5 to have instant and constant hot water.
651331
We have been using this as a stand-alone hot water heater-the only one in the building and it has been fine. We have it about 2 feet from the sink and don't have it turned up all the way and we have scalding hot water. We are just washing hands in an auto repair shop, but even at break time we don't run out of hot water.
1283156
The valve/using the cold water lines as your return lines system is imperfect. What happens is you are filling the cold water line with hot water recirculating to the water heater and you have to run it out before you get cold water. In theory, the valve is supposed to close when the water at the faucet is hot enough but it does not always work as advertised and your "cold" water would still be warm anyway. The way to completely solve this is to abandon the valve and install a return line directly from the last hot water appliance in each main hot water line all the way back to the water heater, and into a tee at the drain line. This way the cold water lines are unaffected.
1502074
The cold water line does connect to the toilet supply line. The hot water line can only come from a hot water supply line. Which is most likely under the sink.
1945448
I have installed three of these over the last few years. I install mine in the hot water line. If you used enough hot water from the tank, then the water entering would be warm coming from your existing hot water system. I have had no problems with this hookup.
911913
Is the hot water supply to the washer actually hot? Is there a long run of pipe to the water heater (water that has to be used up before the hot water appears)? Is the wash water hotter if you shut off the cold supply temporarily as a test? Do you have an on-demand water heater that maybe can't keep up? By the way, it seems like for the WARM water setting, this washer does not mix hot and cold to produce a specific target temperature. It just turns both on and you get what you get. It's up to you to adjust the valves of the supply (usually closing the cold valve slightly) to achieve the right temperature water for WARM.
1101427
There are three wires two are to be hot and the third a copper ground the wires are to come into an electrical box behind the heater in the location of the wires wnen hooking up the wires it is best to leave the feeds about 10 inches long so there is room for connecting to the heater wires which will then be pushed into the box a little tricky operation but its ok....
2272628
I'm sorry but I don't know the difference or exactly what that means. You mean instead of replacing a water tank, can it replace other sources of water supply? What I can tell you is this unit directly connects to the existing incoming cold water line; cold tap water goes in on the left side, is instantly heated within the unit and two lines exit the unit on the right side, one cold, one hot. Sorry if this isn't helpful to your question! I tried :)
1008438
You only need a single cold water line. It comes with a splitter, so then one line goes into the tank and one into the bidet. If your current tank supply line is not removable from the external shutoff valve, you will need a new shutoff valve (which means that you will need to shut off the water in your whole house). That's about the only possibility that would make the installation slightly less easy.
1594500
Hello Kim,Thank you for your question. You've provided one key piece of information we need to answer the question, the incoming water temp. But we also need to know which hot water points of use that you might use at the same time, and the flow rates of each. Let's assume they are one shower at 1.5 GPM and one sink at 1 GPM. That's a total flow rate of 2.5 GPM. This heater provides a temp increase of 40F at 2.5 GPM. 45F + 40F = 85F. Therefore, the 10L is way too "small" of a tankless heater. We recommend the 16L which gives a 57F temp increase at 2.5 GPM. 45F + 57F = 102F which is slightly hot water for most people.Kind Regards,Ross GadgetsGo Hello Kim,Thank you for your question. You've provided one key piece of information we need to answer the question, the incoming water temp. But we also need to know which hot water points of use that you might use at the same time, and the flow rates of each. Let's assume they are one shower at 1.5 GPM and one sink at 1 GPM. That's a total flow rate of 2.5 GPM. This heater provides a temp increase of 40F at 2.5 GPM. 45F + 40F = 85F. Therefore, the 10L is way too "small" of a tankless heater. We recommend the 16L which gives a 57F temp increase at 2.5 GPM.... » Read More Hello Kim,Thank you for your question. You've provided one key piece of information we need to answer the question, the incoming water temp. But we also need to know which hot water points of use that you might use at the same time, and the flow rates of each. Let's assume they are one shower at 1.5 GPM and one sink at 1 GPM. That's a total flow rate of 2.5 GPM. This heater provides a temp increase of 40F at 2.5 GPM. 45F + 40F = 85F. Therefore, the 10L is way too "small" of a tankless heater. We recommend the 16L which gives a 57F temp increase at 2.5 GPM. 45F + 57F = 102F which is slightly hot water for most people.Kind Regards,Ross GadgetsGo « Show Less
1996922
This just hooks up to your toilets water line so the water is just as cold as if you opened up your cold water valve on your faucet. I've been using this model for the last 5 months and the coldness off the water really hasn't bothered me. I know that there are more expensive models that do hook up to both a hot and cold water lines of your bathroom faucet but I feel that would only be efficient if you had the type of water heater that offers instant hot water.
578936
there are a hot and cold line that come out of the base. They are labeled. I had to get extension lines for mine to reach my existing water lines.
283609
Hi Chrstopher - it's two halves of the same unit. One goes on each side the pipe. I was thinking the same thing. I put mine on the main water line outside before it enters the house. I was thinking I want one for the hot water and they actually suggest putting a 2nd unit on the hot water outlet so I'll need to buy another one. Haven't had it long enough to tell if it's working or not. I have read up on them and supposedly they do work but it takes a while to break down the deposits. Our hot water is terribly hard. The magnets seem pretty strong so I'm hoping it has a long term positive effect!
956633
It is only hooked up to the hot side. So you can add all the cold water you want. It acts just as any other water heater.
1320697
For hot water you will probably have to go through the wall, or get extension pipes (what is provided is limited) and feed it to the vanity in the base boards. The other option if you just want to hook up a cold water source is to get a bidget with a heater. Hope that helps.
162760
This unit heats the water to several selectable temperatures, so no need to provide hot water to them. Matter of fact, I recall the owner's manual cautions one NOT to supply hot water - only cold water. Everything is perfect!.Amazon Customer answered on September 25, 2014
2116650
One of the problems is their instructions are limited. It connects to a hot and a cold line. The plumber will need to use a CPVC plastic fitting to connect to the their supplied connector.
761162
This unit produces a mildly warm water source from a cold water source. The water is not hot and will slow down your flow.