Ecosmart POU 3.5 Point of Use Electric Tankless Wa
$184.95
Price: $184.95
(as of Feb 24, 2025 22:31:49 UTC – Details)
This electric tankless water heater is a true Point of Use Model because it is specifically designed for under the sink, single applications with a maximum flow rate of 0.5-Gallon per minute (gpm) and includes a 0.5 gpm sink aerator. Its compact size allows for under the sink installations. The Point of Use models are ideal for: Wet Bars, Strip Malls, Doctor’s Office, Boats, Recreational Vehicles (RVs), Bathroom Sinks. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.
Can provide hot water for one sink at 0.5 GPM in warmer climates
Requires 1 x 30 amp breaker and 10 AWG wire
For one sink at 0.5 GPM in colder climates the POU 6 is recommended
Amperage Draw 29 amp. kW – 3.5 kW
Connection Fittings 1/2″ NPT
Max temperature rise @ .5 GMP is 47.8°F Max temperature rise @ 1GPM is 23.9°F Max temperature rise @ 1.5 GPM is 15.9°F
e21 –
I thought it might be DoA like others reported
Works well enough for a sink, and only that. Nobody should be under any illusions this is meant for anything but..When I first hooked it up, purged the air, turned on the electric and hit the power button, nothing happened. I thought it might be DoA like others reported; sure I wired it correctly as the other 120v device on the same circuit was working, I tried running some water, and boom it lit up. For some reason the power button will turn on/off when no water is flowing, but the LED display will not illuminate unless so.Live in southern California, Santa Barbara, its almost September, ground water is getting fairly cold. Heats only about 0.25GPM to “hot” ~95-100*. Thinking of replacing with the 6kw, uses the same wiring just gotta make room in my panel for another double pole breaker.
Somebody’s Mother –
Follow-up: TOTAL JUNK
Updating- loved this little thing until it completely quit working about 6 weeks after (expensive) installation.Attempted to reach Amazon about return/warranty information and zero response.Sadly… went for loving it to realizing it’s a crap product from a crap manufacturer.I installed this in a sheltered outdoor location at my ranch so my ranch helpers would have a very convenient place to wash their hands often during CovidTIme. It’s right outside their office/hangout so they can wash up each time they come back for a tool or break, instead of having to go to another barn for the regular restroom.Installation is not DIY for most folks- we needed the electricians to do the install. That said, so far the unit is sturdy and products abundant hot water for a couple people to wash their hands well at a time. What I especially like about this unit is the very compact size- worked great in our location.
Kevonie Powell –
Small yet Mighty
No leakage, ease of installation, it’s pretty small in size but the quality in heating while saving electricity is something to commend.
madchefmark –
I will heat water at one sink – kinda
BUT, it will heat water only if its coming out at a trickle. If you full blast the faucet, it will barely get to 95ºOther notes, the “power button” does really nothing. Once hooked up, it will turn on only when water is actually flowing through it, all by itself. So save yourself the troubleshooting. You will need a 30 amp breaker for this heater.
Areas –
whereas the Ecosmart unit works much better. I would recommend the Ecosmart unit because keeps …
I purchased the 110V 3.5kW version and installed it. At the same time, I also purchased the Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt. I installed both on the same day: one for the kitchen sink and another for a bedroom sink. The Atmor unit costs less, but it barely heats the water to lukewarm, whereas the Ecosmart unit works much better. I would recommend the Ecosmart unit because keeps heating the water for fast or slow flow rate. The Atmor units shuts down if the water flow is too high — not a good design.
I-Fly4Fun –
Slightly missed the mark! But overall, I’m (STILL) very happy!
Update: 12-27-2020This unit has been used on a daily basis for 2 years now. It’s installed in an RV, where either myself or others live full time… MY ORIGINAL REVIEW STANDS; this water heater has met my needs (in Central Florida) even during the coldest part of the winter. The only issue is the low flow rate required to achieve 35°F increase, but that is a factor of energy-in vs. energy-out… The limiting factor is 120 VAC, which is my choice to allow its (occasional) use on an inverter powered by solar/batteries. I would highly recommend the 230 Volt version if your installation allows for it.12-26-2018The unit has been installed and working fine for approximately one month. In real life, I do not see the stated temperature rise. The packaging indicates 47.8° F temperature rise at a flow rate 0.5 GPM. The lowest flow rate that this unit will allow is 0.45 GPM… Any lower flow rate and the device shuts off the heating element – apparently this is to protect from overheating.While testing at 0.45 GPM, the maximum temperature rise I have experienced was 39.6°F. In a bench test configuration the current draw was 28 amps at 122 volts (3,416 watts). Considering the flow rate was slightly below 0.5 GPM, I’ve concluded that this unit does not efficiently transfer energy to the water. At least not efficient enough to achieve the rated temperature rise of 47.8°F at 0.5 GPM.Although it does not quite hit the mark regarding efficiency, IT CERTAINLY FITS MY NEEDS. For that reason I’m keeping it, and in fact will likely purchase one or two more of these units. Possibly I will buy a larger unit for another location.
Erica –
Nice – does the job well – great value
This is the 2nd one I’ve bought for my house. (The other was the 6W) They are both great units for heating the water at a kitchen sink before the hot water can make it upstairs from the basement. The only drawback is that the temperature cannot be set to a certain limit (to the best of my knowledge). It sometimes gets very hot before evening out. All adults in this household, so it’s not a problem. You might want to be careful with small kids . All in all, a great value. We’re happy with them.
Amazon Customer –
Damaged product!
The heater was installed by an electrician with all of the recommended settings, but it didn’t work. Because I bought this heater ahead of time for budget purposes, I was not able to try out before the “return window” according to costumer service, so I get to keep the bad heater and lose my money. Deal of the century.0/10 review for a product I was never able to try!!!!
JB –
Does exactly what I wanted. I have teenagers so some times the big tank water is cool. I have this inline with my shower to boost it on those days so I don’t get a cold shower. It is too small to heat the water on it’s own.
RG –
En la propaganda del video, no se distingue cuales modelos son los que tienen control de temparatura. En particular este modelo NO controla la temperatura y el flujo es limitado, por lo que no lo instale. La calidad exterior se ve excelente, parece ser un muy buen equipo.
Edwin –
Buenas tardes, adquirí 3 pz de estos calentadores 18 de dic no funcionaron, los devolví miércoles 13 de enero, la guía ya me aparece que lo recibieron pero aun no me devuelven el dinero, quedo en espera de sus comentarios saludos.
RHooper –
Installed unit and water is luke warm at best. Go on to manufactures web site and it says this model is not intended for use in Canada because of our cold inlet water. Very disappointed with Amazon. This product should not be listed on the Canadian Web Site.
Ryan –
Works excellent as long as the incoming water temp is room temperature. If the incoming water temp is to cold it will only heat the water to luke warm