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Customer Reviews for ATMOR 8.5kW/240-Volt 1.23 GPM Electric Tankless Water Heater with Pressure Relief Device, On Demand Water Heater

Internet #205515516

Model #AT-900-08

  • Continuous on demand hot water heater, no hot water tank
  • Electric water heater, 1-2 sinks or single shower in hot climates
  • Requires 40A, Single Phase, DP Breaker, 6 AWG Wire, and 240V

Customer Reviews

  • 3.5
    out of 37 reviews
  • 76% recommend this product
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Showing 1-30 of 37 reviews
Compact heater
I wanted to add hot water to my 3,000 sq ft workshop. As the workshop is not used everyday, I didn’t want to add a wasteful tank water heater, so this instant hot water heater seemed ideal. Installation is very simple, requiring you run 220v power and a 1/2 inch water pipe to it. I used Romex SIMpull 6-2 Type NM-B , and PEX piping, both from Home Depot. Like most instant water heater, this unit suggests you add a flow restrictor aerator. I tested with the flow restrictor attached and was able to get as high as 130 degrees, even with the restrictor removed I got a very comfortable 105 degrees at full flow. The heater has a very small footprint and can be installed under the sink if desired. The heater has 3 heat settings, controlled by two switches. Clean up in my workshop just got a whole lot quicker and a whole lot more comfortable.
by
  • Recommended
17 found this review helpful
Product was great, install literature was incorrect, better know what...
Product was great, install literature was incorrect, better know what you're doing before buying.
by
  • Verified Purchase
Awesome....
Awesome.
by
  • Verified Purchase
The water heater actually works really well, I have no complaints about the function of the unit....
The water heater actually works really well, I have no complaints about the function of the unit. The install was a lot more difficult than it should’ve been. Unless you have a very solid knowledge of both electrical and plumbing, I would not recommend using this unit. Once everything was plumbed in, and the electrical was tied in, I had several leaks around the plastic fittings that connected to the pex lines I ran in... I had to use a lot of plumbers tape, and overtighten them significantly. Following that, I’ve no issues at all, and it actually does a great job heating water and keeping it warm!
by
  • Verified Purchase
  • Recommended
I’ve put 4 units into service into 1 bedroom rental...
I’ve put 4 units into service into 1 bedroom rental units & so far so good.
by
  • Verified Purchase
Disappointed
I bought a small one for the kitchen sink and a larger one for the shower. Both stopped heating within a year. Put old electric heater back in.
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Response from THD-CSFeb 25, 2019
Dear Valued Home Depot Customer, "I am writing to follow up on your unfavorable review you posted for the Atmor AT-900-08 (8.5kW / 240V) Tankless Electric Water Heater. As the manufacturer, we are very interested in supplying consumers with a quality product that delivers the expected performance. Anytime we hear problems encountered in the use of one of our products, we want to get involved and resolve the difficulties the best we can to meet complete customer satisfaction. First we would like to apologize for the inconvenience this has caused you. This is a very unusual that both units stopped working after a short time…however, typically we have been very successful in resolving these issues though a quick troubleshooting call with one of our technicians. We always encourage consumers to write or call if they are experiencing any issues. (Email: info@paragongroupusa.com or call us at 1-888-783-6082, Mon-Fri, 9AM-5:30PM EST) Unfortunately, we did not have that opportunity to speak with you before posting this review. During our direct communication with you, we could have taken the time to properly investigate the issue, find out what could have caused the issue and of course provide a solution. It could very well have been that the unit needed to be reset or undergo annual suggested maintenance to get it working again. If the unit is truly defective, we would move forward with a new replacement. Again, we deeply regret the difficulties you had with your Atmor AT-900-08 (8.5kW / 240V) Tankless Electric Water Heater and would like to try to rectify the issues. We hope you would give us the opportunity to restore your faith in our units and brand We look forward to hearing from you. Thank you Atmor USA c/o Paragon Group USA"
    1 found this review helpful
    This water heater worked great for what I was looking for the only thing we found out is if you o...
    This water heater worked great for what I was looking for the only thing we found out is if you open the hot water faucet up on high it doesn’t get real hot So you have to run it slow so the water can heat up we were able to get 190 degree water on a slow fill Just need to be prepared for a longer fill in the sink
    by
    • Verified Purchase
    • Recommended
    Worked for a while. Now it will not turn on....
    Worked for a while. Now it will not turn on.
    by
    Response from THD-CSDec 17, 2018
    "Hello Kevan I am writing to follow up on you unfavorable review you posted for the Atmor AT-900-08 (8.5kW / 240V) Tankless Electric Water Heater. As the manufacturer, we are very interested in supplying consumers with a quality product that delivers the expected performance. Anytime we hear problems encountered in the use of one of our products, we want to get involved and resolve the difficulties the best we can to meet complete customer satisfaction. First we would like to apologize for the inconvenience this has caused you. This is a very unusual…however, typically we have been very successful in resolving these issues though a quick troubleshooting call with one of our technicians. It could be as simple as resetting the unit. We always encourage consumers to write or call if they are experiencing any issues. info@paragongroupusa.com or call us at 1-888-783-6082, Mon-Fri, 9AM-5:30PM EST. We can take the time to properly investigate the issue, find out what could have caused the issue and of course provide a solution. If the unit truly deemed defective, we will work quickly to replace. Again, we deeply regret the difficulties you had with your Atmor AT-900-08 (8.5kW / 240V) Tankless Electric Water Heater and would like to try to rectify the issues. We hope you would give us the opportunity to restore your faith in our units and brand We look forward to hearing from you. Thank you Atmor USA c/o Paragon Group USA"
    • Verified Purchase
    1 found this review helpful
    the heater does not work at ...
    the heater does not work at all in other words i wasted money for nothing
    by
    Response from THD Customer ServiceDec 3, 2018
    Dear Valued HomeDepot Customer, I am writing to follow up on you unfavorable review you posted for the Atmor AT-900-08 (8.5kW / 240V) Electric Tankless Water Heater. As the manufacturer, we are very interested in supplying consumers with a quality product that delivers the expected performance. Anytime we hear problems encountered in the use of one of our products, we want to get involved and resolve the difficulties the best we can to meet complete customer satisfaction. First we would like to apologize for any inconvenience this has caused you. It is a bit difficult to understand what the issue was being that your review text was very vague in explaining what the actual issue is. However, we can tell you that this it is very unusual for a powerful/high kW unit like this to produce only warm water. Our materials presented with the unit provides our phone number and email in multiple areas. We always urge end users to give us a call should there be any questions or issues that need attention/answering. Unfortunately we did not have this opportunity prior to this review being posted. We find that most of the time we are able to fix issues remotely very easily with the consumer or diagnose an external issue that is preventing the unit from functioning. If the unit is indeed defective and within the warranty period, we work quickly to send out a new replacement unit without question.. If at all possible, we would like to talk to you to learn more about the situation and see how we could best fix this for you as soon as possible. Being a market leader with over 40 years in the industry in over 40 countries worldwide, we completely stand behind our products and strive for customer satisfaction/product excellence. It is in our best interest to make sure any and all issues are handled/rectified with our support team to the best of our ability to achieve 100% customer satisfaction. Again, We deeply regret the difficulties you had with your Atmor AT-900-08 (8.5kW / 240V) Electric Tankless Water Heater and would like to try to rectify the issues. We hope you would give us the opportunity to restore your faith in our units and brand by giving us a call anytime, Monday-Friday, 9AM-5PM EST. Toll Free: 1-888-783-6082… or please email us to schedule a time to speak: info@paragongroupusa.com We look forward to hearing from you. Thank you
    • Verified Purchase
    1 found this review helpful
    Purchased for a new detached garage with laundry room and lavatory. Sized to handle the washer an...
    Purchased for a new detached garage with laundry room and lavatory. Sized to handle the washer and lav simultaneously. Plumber and electrician were amazed at how small this unit is. When the plumber turned on the water in April 2018, the unit leaked! He removed the cover and saw that the leak was a screw-on cap for the heating chamber - not something he caused by installing it. That's poor quality control at the factory. I called the manufacturer, but hung up after a 25 minute wait. I then sent all information (serial number, proof of purchase, photos of leak, etc.) via email. No response. We really needed to wash clothes so I bought a second unit (they're really inexpensive for water heater of this size). It installed without a hitch and we had hot water. The two rocker switches on the front control water temperature (off, low, medium, high). The high setting produced intermittent steam, so I set it to medium. It's hot, but not scalding. Perfect for my needs. When the tap or washer are turned on, you hear a "click" as the heater activates. There's only a slight delay as it comes up to temp. I suspect having a tank water heater would provide hot water a little bit sooner, but going tankless is optimal. And it never runs out of hot water. The unit is mostly plastic. It's solid, but you must take care when connecting to the pipes as they are plastic, not metal. The electrician had some difficulty connecting the wiring. It requires #6 AWG wires (that's really heavy-duty) for the 240 v service, but the connector block openings were for a size smaller. He managed to get it connected, but not without uttering a few choice words! Seven days after my first email request, I sent it again. A customer service rep called within hours and has shipped a new unit. So, I'll have a spare water heater. :) We've been using it for about two weeks now and we're satisfied. I'm not sure I'd trust this all-plastic water heater for my entire house, but it works well. And, yes, I did buy two. :)
    by
    • Verified Purchase
    • Recommended
    2 found this review helpful
    So far, so good. ...
    So far, so good.
    by
    • Verified Purchase
    unreliable
    It doeant work half the time and have only had it for over a year.
    by
      • Recommended
      1 found this review helpful
      The electrical wiring opening is to small for the size...
      The electrical wiring opening is to small for the size of wire that's required.
      by
      Response from THD Customer ServiceJan 31, 2018
      "Hello Samuel I am writing to follow up on you unfavorable review you posted for the Atmor AT-900-08 (8.5kW / 240V) Tankless Electric Tankless Water Heater you purchased. As the manufacturer, we are very interested in supplying consumers with a quality product that delivers the expected performance. Anytime we hear problems encountered in the use of one of our products, we want to get involved and resolve the difficulties the best we can to meet complete customer satisfaction. First we would like to apologize for the inconvenience this has caused you. Rest assured the unit is designed to accommodate the cable’s thick]ness. If you look at the back top right corner, you would locate a circular area, which is a knock out point for your wire to pass through. Along the top of the back, there are two other circular knock out points for you to choose from depending on how you are installing the unit; however, the most popular entry point is the top right corner. Whichever is more convenient for your installation,. Please understand our customers’ satisfaction means everything to us and we work hard to achieve it every day. We take all matters concerning our products very seriously and encourage our customers to first reach out to us with any questions/issues so we are allowed the opportunity to investigate, troubleshoot, and fix any issues to meet your satisfaction. There is a constant effort to list our contact information for customers to reach us at their convenience. Our phone number and email is listed in the owner’s manual for your reference. a market leader with over 40 years in the industry in over 40 countries worldwide, we completely stand behind our products and strive for customer satisfaction/product excellence. It is in our best interest to make sure any and all issues are handled/rectified with our support team to the best of our ability to achieve 100% customer satisfaction. We deeply regret the difficulties you had with your Atmor AT-900-08 (8.5kW / 240V) Electric Tankless Water Heaters and would like to try to rectify the issues. We hope you would give us the opportunity to restore your faith in our units and brand by giving us a call anytime, Monday-Friday, 9AM-5PM EST. Toll Free: 1-888-783-6082… or please email us to schedule a time to speak: info@paragongroupusa.com We look forward to hearing from you. Thank you Atmor USA c/o Paragon Group USA "
      • Verified Purchase
      2 found this review helpful
      Simple to install and worked as advertised And priced to...
      Simple to install and worked as advertised And priced to go
      by
      • Verified Purchase
      The plastic fittings leak unless you overtighten them. The...
      The plastic fittings leak unless you overtighten them. The provisions for attaching the electrical are poor. The unit produces significantly less hot water than the 7kw unit that it replaced.
      by
      Response from THD-CSDec 11, 2017
      Dear Valued Home Depot Customer, " I am writing to follow up on you unfavorable review you posted for the Atmor AT-900-08 (8.5W/240V) Electric Tankless Water Heater you purchased. As the manufacturer, we are very interested in supplying consumers with a quality product that delivers the expected performance. Anytime we hear problems encountered in the use of one of our products, we want to get involved and resolve the difficulties the best we can to meet complete customer satisfaction. It is very unfortunate in this case that we did not have the opportunity to rectify/resolve the issue prior to the situation escalating your review below. However, the point of us reaching out to you today is to do our best to make this situation right for you and to restore your confidence in our products. Allow me the opportunity to address some points you mentioned in your review. The plastic fittings are not tightened completely due to the fact that the end user might want to add Teflon tape or a sealant to all the connections. Also for the fact that they can be removed for installation and placed back on the unit once the unit is installed to the wall. These fittings also come with a rubber washer that ensures a complete water tight seal. Our apologies for any difficulties you may have had with understanding the installation instructions. We do our absolute best to continuously improve/update our manuals and marketing materials so they become easier to understand and more user friendly. However, it always helps to hear from you so we can learn how to better the consumer experience. Therefore, we welcome you to give us a call so we can discuss in greater length. At the same time, we would like to understand why you are not getting better results from the Atmor 8.5kW unit compared to the 7kW unit you previously had. Clearly, the results should be better… We can troubleshoot the unit together and understand if there could be an issue with the heating elements. If this is the case, then we would replace the unit immediately. Please understand our customers’ satisfaction means everything to us and we work hard to achieve it every day. We take all matters concerning our products very seriously and encourage our customers to first reach out to us with any questions/issues so we are allowed the opportunity to investigate, troubleshoot, and fix any issues to meet your satisfaction. There is a constant effort to list our contact information for customers to reach us at their convenience. Our phone number and email is listed in the owner’s manual for your reference. Being a market leader with over 40 years in the industry in over 40 countries worldwide, we completely stand behind our products and strive for customer satisfaction/product excellence. It is in our best interest to make sure any and all issues are handled/rectified with our support team to the best of our ability to achieve 100% customer satisfaction. Thank you for your time and we regret the difficulties you’ve been had with your Atmor AT-900-08 (8.5W/240V) Electric Tankless Water Heater Should you reconsider Atmor or wish to speak about this matter further, an agent is always available to help, Monday-Friday, 9AM-5PM EST. Toll Free: 1-888-783-6082 or email: info@paragongroupusa.com Thank you. -- Sincerely, Atmor USA C/O Paragon Group USA
      • Verified Purchase
      2 found this review helpful
      all plastic so we will see how long it last . otherwise good
      all plastic so we will see how long it last . otherwise good
      by
      Response from THD-CSDec 11, 2017
      Dear Valued Home Depot Customer, " On behalf of ATMOR, we would like to thank you for purchasing the Atmor AT-900-08, 8.5kW/240-Volt Electric Tankless Water Heater. Your generous and favorable rating was greatly appreciated. I see from your review, you had some concern regarding the composition of your unit. However, our innovative design is made from top quality materials and tested to comply with the highest consumer product safety standards. The inner workings of your Atmor unit is primarily constructed with a commercial grade, heavy duty plastic composition reinforced with a fiber glass compound to complement its durability, stiffness, finish and strength. Specially designed to be heat resistant, this material unit can withstand extreme temperatures of up to 525°F. Thermoplastics, such as the material used in your unit, are increasingly used across the automotive, consumer goods, industrial, medical and energy markets, to improve product performance and consumer safety. It is found that the use of this thermoplastic within our water heater increases heating performance efficiency of your water for your instant hot water needs. For over 40 years in the industry, selling our products in over 40 countries worldwide, we have always stood behind our products and most importantly our customers. Our customers’ satisfaction means everything to us and we work hard to achieve it every day. It is our goal to deliver quality product at affordable prices. Should you ever have any questions, need assistance, or are in need of another tankless electric water heater, an agent is always here to help you Monday-Friday, 9AM-5PM EST. Toll Free: 1-888-783-6082 or email: info@paragongroupusa.com Thank you again for choosing Atmor! Sincerely, Atmor USA C/O Paragon Group USA
      • Verified Purchase
      • Recommended
      This product is poorly made and poorly designed. It doesn't have enough room to wire it with the...
      This product is poorly made and poorly designed. It doesn't have enough room to wire it with the size wires it says are required and the wire sizes it says are needed are wrong. No relief valve. Don't waste your money.
      by
      • Verified Purchase
      1 found this review helpful
      Works as advertised at a good price....
      Works as advertised at a good price.
      by
      Response from THD-CSOct 25, 2017
      "Dear Valued Home Depot Customer, On behalf of ATMOR, we would like to thank you for purchasing the Atmor AT-900-08, 8.5kW/240-Volt Electric Tankless Water Heater. Your generous and favorable review was greatly appreciated and we are extremely happy to know you are satisfied with the unit's performance! The team here at ATMOR is thrilled to hear such good feedback, and we’re proud to be one of the market leaders in tankless electric water heaters. For over 40 years in the industry, selling our products in over 40 countries worldwide, we have always stood behind our products and most importantly our customers. Our customers’ satisfaction means everything to us and we work hard to achieve it every day. Should you ever have any questions, need assistance, or are in need of another tankless electric water heater, an agent is always here to help you Monday-Friday, 9AM-5PM EST. Toll Free: 1-888-783-6082 or email: info@paragongroupusa.com Thank you again for choosing Atmor! Sincerely, Atmor USA "
      • Verified Purchase
      The unit was compact and installed very easily. Wiring the...
      The unit was compact and installed very easily. Wiring the electric into the electric panel, which was done by my neighbor ( an electrician ), was the only thing I was not comfortable with. Other than that fairly easy. Works good, its not spit second hot, but doesn't take long for hot water to come out. The water gets very hot, so I you like very hot water its for you. I would recommend to friends and would buy again if needed.
      by
      Response from THD-CSOct 19, 2017
      "Dear Valued Home Depot Customer, On behalf of ATMOR, we would like to thank you for purchasing the Atmor AT-900-08, 8.5kW/240-Volt Electric Tankless Water Heater. Your generous and favorable review was greatly appreciated and we are extremely happy to know you are satisfied with the unit's performance! The team here at ATMOR is thrilled to hear such good feedback, and we’re proud to be one of the market leaders in tankless electric water heaters. Regarding the electrical connection, we always strongly recommend a professional to handle this if you do not feel comfortable to handle this on your own. You had also mentioned that it took a short bit of time for the hot water to arrive, which could be coorelated to the distance the water has to travel to the application from the heater. This could always impact the time it takes for hot water to reach the application. For over 40 years in the industry, selling our products in over 40 countries worldwide, we have always stood behind our products and most importantly our customers. Our customers’ satisfaction means everything to us and we work hard to achieve it every day. Should you ever have any questions, need assistance, or are in need of another tankless electric water heater, an agent is always here to help you Monday-Friday, 9AM-5PM EST. Toll Free: 1-888-783-6082 or email: info@paragongroupusa.com Thank you again for choosing Atmor! Sincerely, Atmor USA
      • Verified Purchase
      1 Star Review
      Rating provided by a verified purchaser
      by
      Response from THD-CSApr 17, 2017
      "Dear Valued Home Depot Customer, I am writing to follow up on you unfavorable review you posted for the Atmor AT900-08 (8.5kW / 240V) Tankless Instant Electric Water Heater you purchased. As the manufacturer, we are very interested in supplying consumers with a quality product that delivers the expected performance. Anytime we hear problems encountered in the use of one of our products, we want to get involved and resolve the difficulties the best we can to meet complete customer satisfaction. Regarding your review, we only noticed an unfavorable rating, but did not see a review explaining what issue(s) you experienced that led to this poor rating. Please understand our customers’ satisfaction means everything to us and we work hard to achieve it every day. We take all matters concerning our products very seriously and encourage our customers to first reach out to us with any questions/issues so we are allowed the opportunity to investigate, troubleshoot, and fix any issues to meet your satisfaction. There is a constant effort to list our contact information for customers to reach us at their convenience. Our phone number and email is listed in the owner’s manual for your reference. It is very unfortunate in this case that we did not have the opportunity to rectify/resolve the issue prior to the situation escalating your review below… Being a market leader with over 40 years in the industry in over 40 countries worldwide, we completely stand behind our products and strive for customer satisfaction/product excellence. It is in our best interest to make sure any and all issues are handled/rectified with our support team to the best of our ability to achieve 100% customer satisfaction. Thank you for your time and I regret the difficulties you’ve been had with your Atmor AT900-08 (8.5kW / 240V) Tankless Instant Electric Water Heaters. Should you reconsider Atmor or wish to speak about this matter further, an agent is always available to help, Monday-Friday, 9AM-5PM EST. Toll Free: 1-888-783-6082 or email: info@paragongroupusa.com -- Sincerely, Atmor USA C/O Paragon Group USA "
      • Verified Purchase
      1 found this review helpful
      product arrived with no fittings to install. we had to buy fittings that were supposed to be inc...
      product arrived with no fittings to install. we had to buy fittings that were supposed to be included.
      by
      • Verified Purchase
      Steer clear of Atmor
      I've had the electricians and plumbers here all day and still we do not have consistent hot water. Have point of use hooked up to kitchen sink and a shower, which I don't use at the same time. At first water comes out hot then gets cooler. Called Atmore for help and mailbox is full and error message given. Everything was followed to the "t" and this is not good! Don't waste your time or your money on this product. A good idea went down the drain.
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        2 found this review helpful
        my kitchen water line was far from the water heater. My son installed this heater and now I have...
        my kitchen water line was far from the water heater. My son installed this heater and now I have instant hot water. I was wasted at least 5 gallon of water a day trying to get hot water to my sink, now it is instant.
        by
        • Verified Purchase
        • Recommended
        Two bought Two returned
        Very poor quiilty. Bought this item twice trying to get one that worked properly. The first one we purchased had an internal leak upon installation . We returned it and ordered another one. When the second one was installed it would not produce hot water and had to be returned also. I do not recommend anyone to purchase this product.
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          1 found this review helpful
          Cheaply made, poor installation directions and cover is difficult to remove and reinstall when mo...
          Cheaply made, poor installation directions and cover is difficult to remove and reinstall when mounted
          by
          • Verified Purchase
          I HAVE NOT INSTALLED THIS UNIT AS OF YET, IT FOR A FUTURE RENNOVATION PROJECT. THESE UNITS ARE VE...
          I HAVE NOT INSTALLED THIS UNIT AS OF YET, IT FOR A FUTURE RENNOVATION PROJECT. THESE UNITS ARE VERY COMPACT. THERE IS A METAL PLATE THAT COMES WITH THE UNIT THAT LEAVES YOU WONDERING WHAT THE INTENDED USE IS. THERE ARE LITTLE INSTALLATION INSTRUCTIONS WITH THESE UNITS.
          by
          • Verified Purchase
          • Recommended
          1 found this review helpful
          works, not as much heat as i had wanted.
          works, not as much heat as i had wanted.
          by
          • Verified Purchase
          • Recommended
          2 found this review helpful
          Heats great for a kiddie pool
          I run water from my kids pool through this heater to make it more enjoyable, so my purpose isn't very conventional. Even so, I was quite impressed with this water heater as it replaced a Steibel Eltron the was very problematic with the flow switch not working and the Steibel limed up real bad. This thing heats the water quickly, and the flow switch to enable to heating elements is simple and works great compared the the Steibel. I currently don't have a wire gauge large enough to run this unit on the top heating setting, so I use the second setting and have to say even that works great for my purpose.
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          • DIY
          • Verified Purchase
          • Recommended
          Hot, Hot, Hot Water!
          We have this installed in an outbuilding on the other side of the pipe that runs to the house. because of this, we couldn't connect to the house hot water heater. This is perfect for hand washing, dish washing and other small things. We use it in an area where we are taking care of puppies and need to make sure there is no cross contamination. The water gets hot enough that we don't have to worry about that. I would not consider using this as a full time shower or for filling a bath tub. The amount of power it uses would be cost prohibitive. Installation of the piping was easy. Pretty much, connect it to the water source, (we used red and blue flexible plumbing pipe) and then connect to the sink. Plug it in and you almost have instant hot water!
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          • Recommended
          3 found this review helpful
          Don't let the small size fool you
          I was shocked at the small size of the package. Surely this was not a water heater. Even the point-of-use water heaters that I've installed have taken up five times the volume of this mighty mite. But the 6AWG wires are pretty convincing. It means business with 8500 watts at 240 volts. Some precautions -- it needs to be installed in a low-flow showerhead. Do a little bit of math before you start -- we measured the flow through the showerhead, the initial temperature of the water, and found that our degree rise was within the range that's possible. It's back to high school chemistry for a little m*c*delta T. But the math (and the unit) are very much worth it. This little thing produces hot water, as long as you don't try to make it produce more than it's able.
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          • Recommended
          2 found this review helpful
          Showing 1-30 of 37 reviews