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EcoSmart

Ecosmart ECO MINI 4 4-Gallon 120V Electric Mini Tank Water Heater,White

  • Based on 117 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Oct 13
Order within 20 hours and 59 minutes
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Size: ECO MINI 4


Features

  • Plugs into 120V outlet
  • Pressure Relief Valve Included
  • For Buffer and Point of Use applications
  • Easy installation - appliance line cord included

Description

Save water by eliminating the wait for hot water to reach the faucet. Simply tap into the water line and install the heater directly at the sink. No need for costly recirculating lines and pumps. And when you want to eliminate the wait for hot water but need more volume, install the Eco smart heater in-line with a larger hot water source, such as a thankless heater or a storage tank heater. Lightweight and compact, these units plug into a standard 110 volt outlet. From the Manufacturer Save water by eliminating the wait for hot water to reach the faucet. Simply tap into the water line and install the heater directly at the sink. No need for costly recirculating lines and pumps. And when you want to eliminate the wait for hot water but need more volume, install the Eemax heater in-line with a larger hot water source, such as a tankless heater or a storage tank heater. Lightweight and compact, these units plug into a standard 110 volt outlet

Brand: EcoSmart


Capacity: 4 gallons


Power Source: Corded Electric


Product Dimensions: 16.2"W x 17.5"H


Special Feature: Lightweight


Power Source: Corded Electric


Special Features: Lightweight


Wattage: 1440 watts


Voltage: 120 volts


Flow Rate: 1.75 gpm


Heat Output: 1440 watts


Efficiency: [INFERRED Likely to be relatively efficient]


Mount Type: Wall


Capacity: 4 gallons


Item Dimensions W x H: 16.2"W x 17.5"H


Item Weight: 19.3 pounds


Item Depth: 12.65 inches


Material Type: Plastic


Color: White


Style Name: Indoor Installation


Brand Name: EcoSmart


Model Number: ECO MINI 4


Number of Items: 1


Unit Count: 1 Count


Manufacturer: Ecosmart


Manufacturer Warranty Description: 6 years limited leaks/2 year parts


UPC: 854920002381


Global Trade Identification Number: 81


Included Components: Rough Plumbing, Water Heaters, water-heaters


Item Type Name: Electric Mini Tank Water Heater


Manufacturer Part Number: ECO MINI 4


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 13

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

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Top Amazon Reviews

    • Hair stylist approved
Size: ECO MINI 4
The ECO MINI worked better than expected. I set up a hair washing station for my daughter who is a hair stylist and highly recommend this product. Having instant hot water was a game changer!
Reviewed in the United States on August 25, 2026 by Amazon Customer
    • For my food truck sinks
Size: ECO MINI 4
Got this on my food truck , for my sinks . Does the job , no complaints so far
Reviewed in the United States on June 23, 2026 by Erica Patrick
    • Hot and ready when you are
Size: ECO MINI 4
Instant hot water and no more waiting or wasting water
Reviewed in the United States on September 6, 2026 by Peewee
    • What it's good for... and not
Size: ECO MINI 4
This review is for the 4 gallon model. These mini-tanks are really made for situations where you have a remote water heater, and you have to wait for hot water. They are not well suited for general use. That being said.... I have a broken hot water pipe in the foundation, and wanted a temporary solution for the kitchen sink. Our water temp is around 65 degrees. I gave this a shot. With this set to the max setting, we can do some dishes, but if the sink is full - after a large family meal - the hot water runs out. Even when running at a trickle, or shutting off between washing / rinsing, it can still run out. It's far better than nothing, and it works for me as a temporary solution. We adjust the way we do dishes, by doing small batches at a time. Remember you have about 4 gallons of hot water, and as soon as you start using it, the hot immediately begins to mix with cold water. By the time you have used ~ 2 gallons, you have effectively run out of "hot" water. The small heating element is made for longer recovery times - like 15 to 20 minutes. If you do intend to use this as a "point of use" water heater, it would work in a bathroom sink for washing hands; or a 1 or 2 person household that does not have tons of dishes. It would be great for a garage / outdoor sink - washing hands before you enter the house, etc. Or a laundry tub where you would do small quick rinsing, etc. This will never work for a shower, or dishwasher, washing machine, or anything that uses a significant volume of hot water. Unlike a larger water heater, the output temperature drops quickly as soon as you start using it. The cord does have a standard plug on the end; it is about 3 feet long. It works in a standard 120v outlet, you don't need anything special. Remember if you plan to install in the kitchen, most outlets under the sink are switched (for the garbage disposal), so keep that in mind. If you connect this to your faucet with typical rubber supply lines (sink or toilet type), you do not need dielectric nipples as the instructions recommend. The output pipes are iron, so if you do connect direct brass fittings, you need a dielectric. It comes with the necessary PRV, check local code for use. Many people vent this straight into the drain line, which is not up to code and a good way to contaminate the PRV and blow up your drain if/when the heater vents. And yes, this is the exact same heater as Rheem, just a different label and case color. My one complaint is that the inlet / outlet fittings were super dirty with thread cutting oil and remnants of thread. It took some careful cleaning to get that stuff out. The PRV fitting was also contaminated. That some pretty poor quality control, one star off for that because I was able to clean it without much hassle. ... show more
Reviewed in the United States on January 18, 2023 by welder314
    • No more cold water
Size: ECO MINI 4
This is a great heater i installed this in my sister house because she always complained about how she has to run the hot water for a long time before it gets hot and i how fast it gets cold again after turning the hot water off . I installed the 4 gallon water heater and within seconds of install the water was already coming on hot and that was on low seting . My sister said she did all her dishes and it stayed hot the hole time .. Please not if you have a water purification system it could be a tight fit and you should get long water lines to move it out the way when it comes time to change the water purification filters. ... show more
Reviewed in the United States on October 31, 2021 by Angel
    • Works as it should
Size: ECO MINI 4
Installed easily and warmed up quickly. Have had it installed for about a month and we are very happy with the purchase. It is being used for a sink in a workshop to have warm water. So far there has been very hot water immediately and have had plenty to wash hands, tools and a few dishes. The unit is not very small but in our situation had plenty of room, it might not work under a small vanity. ... show more
Reviewed in the United States on March 9, 2016 by L Beth
    • IT TOO GOOD
Size: ECO MINI 4
I have a Tank-less hot Water Heater at my house and after using the restroom I use to have to wait three to five minutes to get hot water coming out of my faucet just so I could wash my hand - it was a painful wait in the middle of the night when your shivering. Now I turn the faucet on and instant hot water. It's the best thing anyone ever made, even better than sliced bread. I smile every time I wash my hands now. Can't believe how much joy this brings me. ... show more
Reviewed in the United States on February 27, 2024 by MAX M.
    • It heats water!
Size: ECO MINI 4
Bought this for our cabin that only has one sink and that's all the plumbing there is inside. It's really great to have hot water up there. I rarely use this thing as we don't go up there often but so far it still works just great. Took me awhile to install but I'm no plumber. Can't complain about much its a great product ... show more
Reviewed in the United States on February 28, 2021 by zhop

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