Tankless Electric

 Choosing the perfect Tankless Water Heater

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$190.95 / piece
MAREY 3.0 GPM Electric Tankless Water Heater

Model # ECO110

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Average rating for Tankless Electric
(4 / 5)
1,045 Reviews
  1. 2 months ago
    Works great and easy replacement for old water heater.
    Easy to install and great replacement for old water heater for kitchen/utility room area of my house. Provides hot water at the set temp. I like that you can replace the heating elements that can be found at local stores. Looks easy to troubleshoot if any problems occur. Eco-Smart web site has all replacement parts for reasonable prices. Also, I believe of all the other brands that I looked at before purchasing this one, this is the only brand that adjusts how many heating elements come on by ... read more how much water flow thus saving power consumption. Considering replacing other old water heater for bathrooms with larger Eco-Smart.
  2. 5 days ago
    Good purchase
    I've only had it for a couple of months but seems to work very good. Heats the water instantly and can adjust temperature as needed. The small size made it easy to hang on the wall for installation. Time will tell about its reliability but so far so good. As an old school plumber, it kind of amazing that something this small can put out endless hot water.
  3. 3 years ago
    A good buy for the performance
    It was pretty easy to install after working out the necessary adjustments for the location and the electrical box. There are two of us and we have two bathrooms, four sinks, and two showers plus a washing machine. It is working great for us. The price at Home Depot was better than any other place. It came much quicker than we were told. It is so much better than having 40 pounds of water setting on the floor waiting to drip.
  1. 10 months ago
    Very impressive
    This is a very impressive little unit. This was the only demand heater I could find that wouldn't pop the circuit breaker on the 30-amp circuit that I was forced to work with. That really was the selling point for me-- that I could replace a standing tank-type hot water heater with a little on-demand heater. While that can't usually be successfully accomplished because a 30-amp on-demand unit doesn't heat the water enough. But here in Hawaii our cold supply water is already close to 70 degrees ... read more F, so the 45°F rise at 1 gpm is enough for our kitchen sink. I rated the quality as "average" because I have no information that it is better or worse than what might be considered "standard", which is also undefined. But it worked perfectly as soon as I connected it.
  2. 2 years ago
    Excellent point of use heater
    Easy to install. Water connections are compression, not pipe thread as I expected. Works great!
  3. 2 years ago
    I buy this produce and works great.
    I buy this produce and works great. thank you Home depot :)
  1. 3 years ago
    Excellent Water Heater
    This tankless heater works great, I live in the PNW and it can get cold up here. This water heater has no problem keeping up, I set the temp to 120 degrees and works just fine. Just look at amazon for a better deal, I bough an open box one for about $270. Nothing was wrong with it, still had all the paper work and was never installed. My only complaint with the water heater is the plastic control knob is cheap and feels flimsy. Installing is easy for any DIYer, just use common sense. If you are ... read more looking at buying a tankless water heater, read all the requirements before and make sure that it will work for you.
  2. 5 months ago
    EXCELLET Output for 3 Baths + Dishwasher and Washer
    After burning 3 TITANS (purchased locally in Miami) I decided to sunk my cost and go for the best out of the shelf in Home Depot. I had to re do the Water pipe intake and flow from 1/2 Inch to 3/4 to fit into this unit AND place a separate breaker box to load balance my home's 400 Amps into dedicating 125 Amps for this unit to work at max capacity when needed... also rewire 3 AWG instead of the previous 2 - so all in all I spent 2.5-3 X times more over the cost of the unit to make it work ... read more properly - BEST INVESTMENT EVER. There is no more light flickering when hot water is flowing and I can have multiple faucets/showers running without compromising water temperature.
  3. 2 years ago
    Nice unit
    Pretty basic install for average DIY person. Unit works well so far after 2 months in service for a family of 5. Only complaint is with the warranty . Touted as having a lifetime warranty on all parts. But thats after you have sent warranty card in within 30 days of purchase. Documenting the licensed plumber & electrician that installed it! Having licensed pros do the install would have added way to much to the cost, and really isnt necessary! So hopefully I dont need parts for a long time.
  1. 2 years ago
    Great purchase; best price
    We ordered 2 units which arrived quickly and properly packaged. Nothing broken. The units went up quickly due to their compact size. Our code officials require overflow drains and disconnects on both circuits which can add to cost, but we were already prepared for this. Just keep in mind. Building inspectors commented at how cool these units are. With the LED displays and stainless steel enclosures, they add a serious "bling" factor to the mechanical room of the home we custom built. Owner really likes them!
  2. 2 years ago
    Works great!
    Delivers as promised. Looks good, nice small size. Mounting bracket could be better. If it lasts a few years (5 yr warranty) I'll be very pleased.
  3. 2 years ago
    Awesome.....
    Installed it myself and found it easy. Looks very classy and works beautifully. Love the digital readout and the stainless steel finish. Would buy it again and recommend it. Smaller (narrower) than my old one, so fit in the same space. I have a log cabin with a very small bathroom, no basement or attic, so needed something that would take up little space. Very happy with my purchase.
  1. 4 years ago
    worth the buy
    Need to have an electrician do the install, hard to find the proper breakers for this. Water takes a minute or so to make it to the variuos facets in the house, but once the hot water comes it's endless. Can even have 2 to 3 areas using hot water and still have suffiecient hot water for a shower.
  2. 1 month ago
    So far so good
    I have had a few months now. This replaced a 50 gal tank. Electrician needed to install sub panel, add breakers, run wiring, and upsize home main breaker to 200amps. Did the plumbing myself. Flow is fine even in tub. Slight fluctuation in temperature when my boyfriend uses another fixture simultaneously, despite the claim to maintain constant temp. That is the reason for 4 stars. Still, awesome to not run out of hot water and I'm saving money on electric bills- $20-30 per mo.
  3. 2 months ago
    Best of tankless water heaters
    Very easy to operate. Had to add another electric panel to accommodate the three 40-watt load from the heater.
  1. 4 months ago
    Great product
    Heatswaterip quick and you neverrun out.easy to install but needs wiring instructions
  2. 1 month ago
    Great for a small house.
    Took out my 30 gallon tank and put this in our small house. 1 bath 2 bedrooms . Had to run new wiring. 6 gauge wire with a 50 amp breaker. Works great! We never run out of hot water .
  3. 2 months ago
    Good product so far
    The 3.0 GPM Electric Tankless Water Heater is smaller then the one I was replacing and easier to install. It is working great so far, I will see how long this one will last. The one I had only lasted 3 years. and the part that went out was circuit broad that was not under the warranty.
  1. 9 months ago
    Worth The Cost
    Researched tankless unit for awhile, but when my water heater finally went out, I had to decide and I decided on the Tempra 12. Cost more than I planned to install it but I think it was worth it. Even the electrician was amazed by the unit.
  2. 3 years ago
    Did Not Meet Expectations
    Was easy to install with exception of running new electric. Is installed in a 2 bedroom 1 bath apt with washing machine. Its specifications allege to handle this situation as a "whole house" hot water heater. All except bathing works well. In the bathtub, the water cycles between hot to very cold. It can be controlled somewhat by reducing the water volume. It works fine for taking a shower and maintains temperature but not for filling the tub for a bath.
  3. 2 years ago
    I should have done this with my other one.
    I don't get why it's alleged these tankless water heaters are hard to install.
  1. 7 months ago
    Tested perfectly in a Montana winter.
    I bought this unit on sale and installed it last July. It probably took 90 minutes, and the materials were around $180. I'm a DIYer and it was no problem at all to hook up. Very simple (except the warranty requires license numbers from electrical and plumbing contractors, but I probably saved enough to buy a new one if something goes bad). The temperature in the crawl space under my cabin is 35° (which is where the pressure tank is and where the water is temporarily stored). It's still cool in ... read more summer, maybe 58°. To compensate for the low starting temperature, I need to set the temp at 125° at the unit to get it 80+ feet to get all the way to the shower at 112°. The temperature is rock steady (once the pipes warm up) and instantly hot no matter how many dishes, sinks, washers and showers are going on at once.
  2. 12 months ago
    Excellent alternative to tank-style.
    This unit makes perfect sense for many reasons. I only use a few gallons a day most of the time. But several weeks a year I might have 4-8 people needing showers, laundry, dishes, cleaning... The temp is incredibly steady and perfectly predictable, adjustible and economically smart. Installation was simple and quick. The 36 kilowatt model is overkill, but my well is 400 feet down and my crawlspace is 62° even in summer, so I wanted to be sure the water could always be hot and ready, even in ... read more Montana winters. No regrets.
  3. 1 year ago
    Amazing Product
    This water heater is quite the space saver and installation isn't difficult. I'm having happy with this purchase and I'd recommend anyone to give this tankless water heater a try.
  • 2016-06-26
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