Model # AT-900-03

Internet #205515499

ATMOR 3 kW / 110-Volt 0.5 GPM Point of Use Tankless Electric Instant Water Heater
0857580003019

ATMOR

3 kW / 110-Volt 0.5 GPM Point of Use Tankless Electric Instant Water Heater

  • Instantaneous water on demand - endless flow of hot water
  • Ideal for Sink applications in moderate to warm climates
  • Same-day installation in most areas. Call 1-855-400-2552 by noon.
Was  $119.99
$95.99 /each

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Product Overview

The ATMOR Tankless Electric Instant Water Heater is the eco-friendly, efficient and convenient solution you have been looking for, delivering an endless supply of hot water instantly at the point of use only when you need it. It is suitable for both residential and commercial applications, even in your RV, so you can enjoy a continuous flow of hot water whenever you want. This compact device can be installed against the wall either under the sink out of sight or near the point of use, where its elegant design blends into your home environment among other appliances. Unit will require a 30 Amp dedicated circuit breaker to operate properly.

  • Provides on-demand hot water with no waiting; a constant, continuous flow of hot water only when you need it at the point of use
  • Eliminates wasting unused (cold) water while you wait for your hot water to finally make it to your faucet
  • Provides an endless supply of hot water so you never run out
  • Ideal for multiple applications: home, office, commercial properties, apartments, public hand-washing facilities, schools, service stations, airports, bus/train stations, shopping malls, RVs, boats, concession stands and more
  • Long lifespan is approximately twice that of a standard 40 Gal. electric tank
  • Eco-friendly design is small, compact and mostly made up of recycled material
  • Consume less energy and save money by simply heating only the consumed amount of water when you need it
  • Install either under the sink out of sight or near the point of use, leaving free storage space in your basement or attic
  • No scale and mineral buildup due to the fact that the water temperature is not reaching 60°C / 140°F and there is no storage of hot water
  • Required wire size: 10 AWG
  • Working pressure: 8 BAR (115 psi)
  • Maximum tested working pressure: 16 BAR (230 psi)
  • Minimum operating temperature (F): 36
  • Nominal water volume: 0.11 Gal.
  • Phase: single
  • Note: not a plug-in unit; unit must be professionally installed into electrical supply
  • Unit requires a 30 Amp dedicated circuit breaker
  • Use our buying guide to choose the right tankless water heater for your needs

    Tankless Electric Water Heater

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Price
Was $119.99
$95.99 /each
Save $24.00 (20%)
$158.14 /each
$179.85 /each
$195.00 /each
Name 3 kW / 110-Volt 0.5 GPM Point of Use Tankless Electric Instant Water Heater 2.5 gal. Electric Point-of-Use Water Heater 3.4 kW 110-Volt 0.5 GPM Point-of-Use Tankless Electric Water Heater RETE-9 - 9kW 1.37 GPM Point of Use Tankless Electric Water Heater
Brand ATMOR Bosch Rheem EcoSense
Ratings (19) (16) (33) (57)
Water Heater Features Overheat Protection,Wall Mountable Overheat Protection,Temperature Pressure Relief Valve,Wall Mountable Wall Mountable No Additional Features
Part Warranty 2 Year 2 Year 1 Year 1 Year
Savings Center Special Buys
Fuel Type Electric Electric Electric Electric
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Customer Questions & Answers

13 Questions23 Answers

Customer Questions & Answers

3 kW / 110V 0.5 GPM Point of Use Tankless Electric Instant Water Heater
3 kW / 110V 0.5 GPM Point of Use Tankless Electric Instant Water Heater

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4 answers

What is the tank material?

This question is from 3 kW / 110V 0.5 GPM Point of Use Tankless Electric Instant Water Heater
Asked by
Annona, Texas
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November 10, 2015
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Answers (4)

Asked by
Virginia beach
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March 5, 2016
Answer: 
Instant water heaters use heated coils in which the water flows through thus eliminating the need for a tank.
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Asked by
El Dorado County, CA
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Home Improvement Profile: DIYer
January 19, 2016
Answer: 
The outer tank material appears to be high-temp plastic, but there may be a small metal tank inside of that.
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Asked by
Tempe, AZ
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December 8, 2015
Answer: 
Plastic
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Asked by
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December 7, 2015
Answer: 
This is a tankless unit.
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3 answers

will this work in plumbing series

This question is from 3 kW / 110V 0.5 GPM Point of Use Tankless Electric Instant Water Heater
Asked by
nc
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November 10, 2015
I already have a whole house water heater, can I use this unit at the shower to up the temp a bit - I am selecting this only coz it is 110v,

I was wondering whether incoming hot water into the unit would fry it - what would be the max input temp for this
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Asked by
El Dorado County, CA
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January 19, 2016
Answer: 
If you mean in series with a standard hot water heater, then, yes, it could work. But be careful that you don't end up making already hot water even hotter. The unit should have a high temp cutout but you should ask the manufacturer.
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Asked by
Tempe, AZ
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December 8, 2015
Answer: 
It can function as a booster. Just be aware of flow rate vs. temp rise.
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Asked by
ca
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Home Improvement Profile: DIYer
November 28, 2015
Answer: 
The water heater will adjust the heating elements to output a consistent temperature. You can use this asa supplemental heater, as many people have.
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3 answers

Does this model have an auto shut off feature when the input water temperature reaches the device's operating temperature?

This question is from 3 kW / 110V 0.5 GPM Point of Use Tankless Electric Instant Water Heater
Asked by
San Jose, CA
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July 8, 2015
My plan is to install this device in tandem with my existing hot water heater with the purpose of heating the cold water in the hot water pipe until the hot water from the existing hot water heater reaches the point of use location. This would not work for me if the auto shut off feature is controlled by flow only.
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Asked by
VA.
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October 9, 2015
Answer: 
NO, I WOULD JUST WAIT FOR YOUR WATER TO GET HOT OR INSTALL A CIRULATING PUMP THAT WAY THE WATER WILL BE ALREADY HOT
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Asked by
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July 9, 2015
Answer: 
Intended for use with Solar-heated input water, but may fit your plan:
Yes. There are models such as 405 and HOME 905 that measure the water temperature and adjust it to the desired temperature.Atmor 905 is installed at the home’s hot water point of entry, as water flows into the 905, the product measures the water temperature and, if necessary, automatically heats it to a preset temperature.
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Asked by
san francisco, CA
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July 9, 2015
Answer: 
from specs: Water Heater Features
Overheat Protection,Wall Mountable
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2 answers

How hot does the water get.

This question is from 3 kW / 110V 0.5 GPM Point of Use Tankless Electric Instant Water Heater
Asked by
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June 17, 2016
Can you also set the tempature
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June 18, 2016
Answer: 
The temperature can get up to 140 degrees.
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June 18, 2016
Answer: 
Depends on the incoming water temperature but up to 130 degrees F.
The actual stats are 0.5 GPM (gallon per minute) flow rate it will raise the water temperature up 45 degrees.
At 0.6 GPM it will only raise it 35 degrees.
So there is some hypothetical very slow water flow rate that incoming 65 degree water could be raised to the maximum 130 degree water temperature but it would be a sink turn on Read More
Depends on the incoming water temperature but up to 130 degrees F.
The actual stats are 0.5 GPM (gallon per minute) flow rate it will raise the water temperature up 45 degrees.
At 0.6 GPM it will only raise it 35 degrees.
So there is some hypothetical very slow water flow rate that incoming 65 degree water could be raised to the maximum 130 degree water temperature but it would be a sink turn on very low so that the water did not travel through the heater too fast. Read Less
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Customer Reviews

Rated 3.3 out of 5 by 18 reviewers.
Rated 1.0 out of 5.0 by Worst product ever. Defective and could have caused major damage Installed this on my outside pool bathroom that I just built. I'm lucky I didn't have major damage from this product. It installed easily, but after about 4 hours, the entire bathroom was flooded. My plumber rushed back at 8 pm that night, and we found that the product was defective. Had I not gone outside to check on the lighting, I would not have discovered it until the morning, and there would have been significant damage. Imagine if this was installed in an indoor bathroom. The whole house could have been damaged. I would strongly discourage anyone from using this product. Spend the money and get a better tankless water heater. August 9, 2016
Rated 5.0 out of 5.0 by heater keep water warm so i get clean shave water heater works great had to buy lot of fittings to make work May 3, 2016
Rated 1.0 out of 5.0 by Not Working After several hours of installation and going to Home Depot couple times for the required connectors, etc. the product itself did not work. Both lights turn on and plumbing is all good but it does not heat up the water. Now i have to deal with either calling the company to replace it or just uninstall it and take it back to Home Depot. I would not recommend this at all. November 26, 2015
Rated 1.0 out of 5.0 by Don't Buy This Under-powered Unit I can't recommend the Atmor AT900-03 (110V / 3kW) Tankless Instant Electric Water Heater unless your incoming water supply is at least 65 to 75+ and you only need an extremely low water flow from a single tap. My advice is to buy a larger, 240 volt heater and don't bother with this under-powered model. I'm in the Northern California foothills and the manufacturer's map indicates an incoming water temperature of 51 to 60 should be high enough to support this model. I have to disagree. The price was great, but this small of a unit simply won't work unless perhaps you're living in South Texas or Florida with already warm incoming water. Even then, it's hard to imagine an application where this model would work satisfactorily with a decent water flow. I'm a licensed plumber and electrician so have quite a bit of hands-on experience with water heaters. I bought this heater to provide hot water for a single bar-type sink faucet located two feet from the heater. Install instructions are meager, and troubleshooting info minimal. The manual never clearly indicates how an electrical connection would make a smooth transition into the back of the heater. You cannot use a romex cable connector/clamp to secure the cable to the unit unless you drill a 1/2" hole into the plastic back. The instructions also never addressed how to install the included temperature/pressure valve, nor did it even identify what it was. Flow restrictors were mentioned, but were not included, nor were there instructions on where to buy them, or install them if you had some. At first, I thought the heater was defective because there is no basic power indicator light, and the unit's switch lights didn't illuminate when I flipped them to the "on" position. Then I realized the lights would only illuminate when water is flowing and the heater turns on. OK, so I opened the hot water side of the faucet and waited. But where was the hot water? Nothing but cold water coming out of the tap. After rereading the troubleshooting page, I then reduced the flow to literally just barely a trickle and finally could feel some "warm" water coming out of the faucet. But the flow had to be set so low, just barely above the point where the unit would shut off again. Even then, the water temp never rose above perhaps 90, certainly not hot. Thinking I had a defective unit, I installed another, identical unit. But the results were identical. After all this, I'm willing to try a larger model, and I recommend anyone reading this do the same. You must have a dedicated electrical circuit anyway, so you may as well go for a 240 Volt model. January 19, 2016
Rated 3.0 out of 5.0 by Have modest expectations This 110v/3KW version is pretty anemic in its water heating capability. Don't expect to get buckets of steaming hot water. At VERY LOW flow rate (just at the threshold where the heater comes on) the water is hot but not too hot to hold your hand under. At flow more like what most folks would consider "normal", as for washing your hands, the water is only warm; no need to mix in any cold water. If you're looking for more/hotter water, go with one of the 220v versions. October 24, 2015
Rated 3.0 out of 5.0 by It works.....but not as hot as hoped. Due to lower wattage it is slow to respond, takes about 20-30 seconds to feel the warmer water. And requires a low flow to get warm. Better than no hot water. Just don't expect a lot of heat. December 8, 2015
Rated 5.0 out of 5.0 by Works like it's supposed to. Using it on a tub sink. Set it on the lower setting and it works great. Plenty hot! So far so good. December 9, 2015
Rated 4.0 out of 5.0 by NOT WHAT I WAS HOPING FOR I ORDER A UNDER THE SINK WATER HEATER AND IT WAS JUST TO SMALL FOR MY NEEDS. October 9, 2015
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