Rated 3.3 out of 5 by 18
Rated 1.0 out of 5.0 by Discontent 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 jimmie 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 Peter 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 AlanRT 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 honeydo 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 Roadster1024 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 Birdman 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 BONGO 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