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EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology , 17 x 14 x 3.5, White

  • Based on 5,243 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 21
Order within 12 hours and 37 minutes
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Style: ECO 18


Pattern Name: Water Heater


Features

  • The product is highly durable
  • The product is easy to use
  • Manufactured in China
  • Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
  • The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
  • Lifetime warranty for residential use
  • Save up to 60% on your water heating costs with the most advanced, self modulating technology available
  • Never run out of hot water with an ECOSMART tankless water heater.
  • Save up to 12 cubic feet of storage space.
  • Digital temperature control in 1-degree increments gives users complete control of hot water
  • 75 A

Description

From the Manufacturer This Smart Technology electric tankless water heater is configured for climates where incoming water temperature is 62 Degree F and above. The ECO 18 is capable of heating over 2.5-Gallon per minute, which is the equivalent of one shower head (with a 1.5 gpm flow) and one sink with a low inlet water temperature of 62 Degree F. Two showers can be run simultaneously when incoming water temperature is above 70 Degree F in warmer climates such as South Texas, South Florida, New Mexico, Arizona and South California. These models come with a digital temperature control that allows you to set your temperature in increments of 1 Degree. Prior to purchase and installation please verify this model is the rights size for your hot water needs and electrical requirements.

Brand: EcoSmart


Product Dimensions: 14"W x 17"H


Special Feature: LED Display


Color: White


Wattage: 18000 watts


Brand: ‎EcoSmart


Product Dimensions: ‎14"W x 17"H


Special Feature: ‎LED Display


Color: ‎White


Wattage: ‎18000 watts


Voltage: ‎240 Volts


Maximum Flow Rate: ‎3.51 Gallons Per Minute


Heat Output: ‎18 Kilowatts


Efficiency: ‎99.8 %


Is Electric: ‎Yes


Manufacturer: ‎Ecosmart


UPC: ‎854920002046


Global Trade Identification Number: ‎46


Part Number: ‎ECO 18


Item Weight: ‎14 pounds


Country of Origin: ‎China


Item model number: ‎ECO 18


Is Discontinued By Manufacturer: ‎No


Size: ‎17 x 14 x 3.5


Pattern: ‎Water Heater


Item Package Quantity: ‎1


Certification: ‎UL-499


Special Features: ‎LED Display


Included Components: ‎electric tankless water heater


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Lifetime Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages.


Date First Available: October 19, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • saving lots of money
Style: ECO 18 Pattern Name: Water Heater
I recently switched to the EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts, and it has been a game-changer for my monthly expenses. I’m thrilled to report that this upgrade has saved me $80 every month on my energy bills! The installation was straightforward, and the compact design fit perfectly into my home. What I love most about this water heater is its on-demand heating feature, which means I’m not wasting energy keeping a tank of water hot all day. The temperature control is precise, providing consistent hot water whenever I need it without any fluctuations. Beyond the cost savings, the EcoSmart ECO 18 has been incredibly reliable. I’ve noticed a significant improvement in the efficiency and performance of my home’s hot water system. Plus, it’s environmentally friendly, which is a big bonus for me. If you’re looking to reduce your energy bills and enjoy a continuous supply of hot water, I highly recommend the EcoSmart ECO 18 Electric Tankless Water Heater. It’s an investment that pays for itself in no time, and the $80 per month savings have made a substantial difference for my budget! ... show more
Reviewed in the United States on July 8, 2024 by Alan

  • Works great, has limits
Style: ECO 27 Pattern Name: Water Heater
I purchased the Ecosmart water heater to put into my new home that I built last year. I hired a plumber to do all of the new plumbing work so plumbed it in for me, I did the electrical work myself. I ended up spending about $180 on wire and breakers. The ECO 27 requires 3-30amp breakers at the panel and 3 runs of 8 gauge, 2 conductor wire. I live in Canada and 8/2 wire is rare apparently, so I had to go with an 8/3 wire and simply didn't use the third wire, and taped it off. The electrical installation was pretty simple, I followed the directions, watched their YouTube installation video, ran through the tests with my tester, and viola, hot water. My complaints. The water takes awhile to get hot for some reason. I don't know why. It seems as if all the cold water in the lines has to disappear first, then be replaced with hot water, then the hot water starts to come out. Washing your hands in the bathroom sink or kitchen sink can be slightly frustrating, as you have to wait a bit before the water gets hot. This is different from how I remember the way a hot water tank works. That's it. On to the good stuff. First things first, the shower. In my master bath I have two shower heads in the shower. A Delta 57014 Slide Bar and an American Standard 10" Rain Head. I installed a diverter so I can use one or the other, or both. I had to tweak the temperature settings a little bit, at first I figured 105 degrees would be best, as I enjoy a nice hot shower. However it was a bit too cool, perhaps the distance the water had to travel cooled it down? So I stepped it up a bit to 128 degrees. With a single shower head running it is right on the edge of being too hot, but I really enjoy hot showers. If it becomes too much for me to bare I turn it down a little or just flip on the other shower head. With both running, it is a temperature I think most people would enjoy. I try, most of the time, to be energy and water efficient, I turn the shower off and soap up, turn it back on to rinse. But let me tell you! I've had a couple of mornings after being out late and having a couple too many drinks, and I have laid in the shower with both shower heads going for upwards of an hour. It doesn't stop, it doesn't slow down, it doesn't get cold. Even when it was -20 Celsius outside, it kept heating my water up for my shower :) The last thing I would like to say about the shower, since I have the Ecosmart set at a temperature that works for me, all I do is turn it straight to hot, no mixing. This allows toilets to be flushed, sinks to be ran, etc. without ever flinching a degree when I am in the shower. Next! I installed a Roman style faucet for my tub. This baby pours water out. It pours too fast actually. The Ecosmart cannot keep up. This was actually the first test I made with the water heater and I was very disappointed at first. However, if I turn the tap down a bit, it heats up, turn it down a bit more, and it gets even hotter. Simple fix really. The tub takes a little longer to fill, but it's not a huge deal. I don't bathe often anyway. The dishwasher.. I have a Whirlpool dishwasher that has an element in it to help heat the water beyond what the Ecosmart can do. I never had any problems with washing dishes, I'm not 100% sure how well it would perform without the element in the dishwasher to help heat the water more, but I purposely bought a dishwasher that would do this just in case. All in all, it's an excellent and aesthetically appealing unit. I don't have any complaints, and it seems as if it's only limitation is at higher flow rates. I cannot say if it's saving me any money, as I haven't anything to compare it to. ... show more
Reviewed in the United States on January 15, 2014 by Anthony Fleck

  • Easy installation, so far very pleased!
Style: ECO 27 Pattern Name: Water Heater
To preface, this is being written by a 30 year old woman, a total girly-girl, though I don't mind getting my hands a little dirty if it means saving a TON of money. My husband and I did this project in half a day. We just lost a 2 year old tank heater due to our sewer backing up, and we didn't want to risk another one, since they can't be used once flooded. We decided on a tankless after reading a lot of reviews. Pricing them locally, they were anywhere from $650 to $2,000 with decent reviews. I found this one on Amazon as well as Sears and a couple other online places with 5 stars on every site. The price fluctuated a lot, but never went over $500. I bought it for $438. This heater is nice and compact. It is 17" on the longest side, and only weighs 11 pounds. Coming right out of the box, I was impressed with how small it was! The packaging from the factory was good, but one corner mount was a little bent and the plastic knob fell off. We had to build a small wall to mount it on in our 120 year old basement. Just a couple of 2x4's mounted to the ceiling and it went right up! Mounting it was incredibly easy. I could hold it up with one hand and mark the holes, then leveled it and screwed it right in. The bent corner flattened right out. Using flexible water heater hoses from our local hardware store, I was able to attach the plumbing to the new heater from the old connections in just a couple of minutes. When I first took the covers off the bottom of the heater, a little bit of water leaked out, but after asking around, I'm told that is normal from the pressure testing they do in the factory. Running the electric was the most complicated part of the process. Our main breaker is 150, and though the manufacturer recommends 200, the 150 is sufficient. We were fortunate that our box had plenty of space for the 3 double-pole breakers. The wire required is very thick and heavy, and was a little hard to work with. We ran three lines from the heater to the breaker box. Installing the wire in the heater was simple. The instructions only say to hire a professional electrician. Really, you just run the wires through the bottom, put each one in the electrical panel, connect the ground, and you are done! Connect the breakers, and wallah! You have a water heater! We initially set the temp at 115 degrees, but dropped it down to 110 and it is perfect. It does take a little bit longer for the hot water to reach the shower or sink, but once it does, it stays hot, and stays consistent. Our shower head has a flow rate of 2.5 gpm, and it stayed nice and hot! My husband, son, and I all took hot showers and it was amazing to not have to wait in between! The instructions recommend setting the water heater at the hottest temp preferred for showers, with the idea that you only turn on the hot water and don't need to mix in cold. This is brilliant! So far we are very, very pleased, and love that we don't have to worry about a backed up sewer ruining our investment. The project took about 3 hours total with 2 people working on it to install. We were able to do it with all the normal tools we had laying around the house. Our cost for supplies was around $300. It would have been less but my husband cut one of the wires too long, which made the third one too short, so we had to buy an extra $40 25' wire in addition to the $95 75' one we initially bought. We needed the following: -wire -3 40amp double-pole breakers -2 conduits for the breaker box -2 flexible water heater hoses -adapters for the hoses from where we had to cut the pipes off the old water heater, primer and glue to connect them -plastic holders to nail the wire to the rafters That's it! The wire was the most expensive part after the water heater. The hoses were about $13 a piece, and the rest were just a couple of bucks. I'll update after we've used it for a while! ***1 YEAR UPDATE*** It's been a year since we installed our electric tankless water heater, and could not be happier! It does take a little bit longer for the hot water to reach our faucets, but when it does, it is unlimited and stays nice and hot. We can run 4 showers or baths and do a sink full of dishes, all after running a load of laundry, and still have hot water. Our gas and electric bills come as one, and we have not noticed any difference in our bill compared to previous years, switching from a gas tank heater to an electric water heater. I think the fact that we are only heating and using the tank "on demand" vs. having a gas tank that constantly heats, is why. I still recommend this tankless heater to everyone that will listen! ... show more
Reviewed in the United States on March 19, 2012 by WR

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