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Model # AT-35WH-HD

Store SKU # 1005947526

3500-Watt/120V 0.5 GPM Point-of-Use Electric Tankless Water Heater Includes Pressure Relief Device 1-Sink Water Heater

$169.00
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  • Continuous on-demand, point-of-use tankless water heater
  • 30 Amp single pole breaker, 10/3 AWG wire; not a plug-in unit
  • Saves up to 50% on water heating costs vs. a tank water heater
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Product Details

Ensure you have hot water when you need it by installing this 3500-Watt/120V 0.5 GPM Point-of-Use Electric Tankless Water Heater Includes Pressure Relief Device One-Sink Water Heater. It can save you money on your energy bill. It is designed to save up to 50% on heating costs. This is a durable option for your home with its commercial-grade, heavy-duty, heat-resistant polymer with fiberglass.
  • Ideal for a single sink application in areas with at least 57 degrees F ground water temperature
  • Requires 30 Amp single pole dedicated breaker and 120V connection
  • Standard 1/2 in. NPT (straight thread) water connections
  • On-demand water heating saves up to 50% on water heating costs
  • Professional installation recommended
  • UL certified and lead free
  • Commercial-grade, heavy-duty heat-resistant polymer composition reinforced with a fiber glass compound canister construction
  • Reference temperature rise/flow rate chart to confirm if this is the right tankless water heater for your project
  • Seven-year leakage-free and two-year parts only warranties
  • Includes pressure relief device (PRD) with built-in one-way valve for added value and safety
  • Use buying guide to choose the right tankless water heater for your project
  • Atmor is a reliable, global leader in tankless electric water heating, with over 50 years of experience and currently sold in over 50 markets worldwide
  • Before purchasing, please confirm you have the required electrical requirements available on your breaker panel
  • Ideal for commercial or residential use
  • Inner workings (i.e. canister) of this Atmore unit is primarily constructed with a commercial-grade, heavy-duty, heat-resistant polymer composition reinforced with a fiber glass compound to complement its durability, stiffness, finish and strength; such thermoplastic materials are increasingly used across the automotive, consumer industrial, medical and energy markets to enhance product performance and increase consumer safety
  • Note: unit must be professionally installed into electrical supply, reference our guide to confirm if this is the right tankless water heater for your area/needs
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
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Specifications

Dimensions: H 7.13 in, W 11.96 in, D 4.13 in

Dimensions

Product Depth (in.)4.13 inProduct Height (in.)7.13 in
Product Width (in.)11.96 inWater Connection Size (in.)1/2 in

Details

Electricity PhaseSingle PhaseFinish FamilyWhite
Flow Rate @ 35°F Rise (gallons/min)0.68 gal (US)/minFlow Rate @ 45° Rise (gallons/min)0.53 gal (US)/min
Flow Rate @ 55° Rise (gallons/min)0.43 gal (US)/minFlow Rate @ 65° Rise (gallons/min)0.33 gal (US)/min
Fuel TypeElectricHeat Exchanger Warranty2 Year
Indoor/OutdoorIndoor, OutdoorMaximum Temperature (F)130 F
Minimum Activation Rate (gpm)0.5Minimum Temperature (F)57 F
Number of Showers1-2Pack Size1
Product Weight (lb.)4.41 lbRequired Volt Connection120 volt
Returnable90-DayUniform Energy Factor0
Wattage (watts)3500 W

Warranty / Certifications

Certifications and ListingsUL ListedLabor WarrantyNo Warranty
Part Warranty2 Year
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Questions & Answers

206Questions
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Q:Regarding the 29kw model, the specs list requirements of 40a double poles breakers for each circuit but the installation instruction literature is ambiguous whether it should be 50a or 40a. Which breaker amperage should I use for the 29kw model?
by|Oct 7, 2023
1 Answer
Answer This Question

A:  Hello, Both breakers are fine. You can either use 3x40 double pole breakers or 3x50 double pole breakers with your 29kw unit.

by|Dec 5, 2023
    1 found this answer helpful
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    Q:Are the Atmor and Black and Decker 13KW 60 amp models identical units, with different badging? They seems to be the same; other than case color, what is the difference?
    by|Aug 28, 2023
    0 Answer
    Answer This Question
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    Q:How much flow for 25 degrees heat rise?
    by|Jul 24, 2023
    2 Answers
    Answer This Question

    A:  You would have to have a flow rate of around 0.8 - 0.85 Gallons per Minute. Hope this helps answer your question. Thank you!

    by|Jul 24, 2023

      A:  never worked correctly. its for a special aerator!,

      by|Sep 26, 2023
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        Q:Can I use this for a shower
        by|May 29, 2023
        3 Answers
        Answer This Question

        A:  Great question, but this is a great and perfect product for under the sink. You have plenty of hot water to wash your hands and face, but not for taking a shower. I hope that helps, Keith

        by|Jun 28, 2023

          A:  Thank you for your inquiry and interest. Unfortunately, no... this particular kW unit is designed for a single sink for areas having ground water temperature no less than 51°F. You may want to consider our 13kW unit, which is ideal for a shower. Model #: AT-13WH-HD https://www.homedepot.com/p/ATMOR-13-000-Watt-240V-2-25-GPM-Electric-Tankless-Water-Heater-Includes-Pressure-Relief-Device-Ideal-for-a-Full-Bathroom-AT-13WH-HD/315395188#ratings-and-reviews Hope this helps! Thank you again! ATMOR USA - Customer Support

          by|Sep 7, 2023

            A:  Thank you for your inquiry and interest. Unfortunately, no... this particular kW unit is designed for a single sink for areas having ground water temperature no less than 51°F. You may want to consider our 13kW unit, which is ideal for a shower. Model #: AT-13WH-HD https://www.homedepot.com/p/ATMOR-13-000-Watt-240V-2-25-GPM-Electric-Tankless-Water-Heater-Includes-Pressure-Relief-Device-Ideal-for-a-Full-Bathroom-AT-13WH-HD/315395188#ratings-and-reviews Hope this helps! Thank you again! ATMOR USA - Customer Support

            by|May 30, 2023
              Showing 1-4 of 206
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              Customer Reviews

              3.6 out of 5
              (528)
              • 3.6
                out of 528 reviews
              • 70% recommend this product
              Filter by:
              Showing 1-10 of 528 reviews
              Burnt up after 13 Months of use
              Luckily we were home when the unit decided to burn up, and we caught the electric fire before it spread to the rest of the house, lots of smoke as the ATMOR unit melted down and water leaking out the bottom of the unit. Called the company and was informed it was over the one year warranty by one month and was not their problem.
              by
                5 found this review helpful
                Good in line water heater
                The unit is compact, installation was good as I am an electrician, for the regular DIYs it may be a challenge. I have the unit on the highest setting however to get the temperature needed I had to adjust the inlet flow according. It performs as described. Cheers!
                by
                  • Recommended
                  2 found this review helpful
                  Worked excellent for my cabins needs.
                  For 3 people in a house hold it worked as advertised. Here in mid south I started at 115 degrees and it was scalding hot coming out. takes a second but not bad to get hot with about 50 foot of water line to shower from unit.
                  by
                    • Recommended
                    2 found this review helpful
                    The Atmor Electric Tankless Water Heater is efficient and compact! Fits perfectly under a sink, u...
                    The Atmor Electric Tankless Water Heater is efficient and compact! Fits perfectly under a sink, utility room, closet, wherever. Works great for a bathroom that is on the other end of a house or far from the hot water tank. This water heater works inline with your current plumbing and is activate when water flow is detected. This gives you instant hot water until the hot water from your main tank reaches this location. Great size and affordable to run!
                    by
                    • Recommended
                    2 found this review helpful
                    Just recently received this tankless water heater by ATMOR. It is a 13000 Watt and 240 volt heate...
                    Just recently received this tankless water heater by ATMOR. It is a 13000 Watt and 240 volt heater which includes a pressure relief valve The Continuous Flow of hot water activates with water flow and unlike gas water heaters you can install this just about anywhere as it requires no venting. It does however require a 60 amp double pole dedicated breaker and a 240-volt connection. Also required are standard half inch straight thread water connectors. This water heater can also be installed indoors or out. It has four settings, off, low, medium and high. The hardest part is going to be drilling through your house and adding the number 10 wire from the fuse box to the heater. The great part is going to be not having to waste water while waiting for actual hot water to come out of your faucet! Fortunately my partner is in construction and can do all of the plumbing , drilling and wiring. You may have to hire someone to do all that for you. Overall, it's a yes from me.
                    by
                    • Recommended
                    3 found this review helpful
                    The Atmore under sink hot water heater is a cinch to install under the sink, it gives me hot wate...
                    The Atmore under sink hot water heater is a cinch to install under the sink, it gives me hot water as quick as I open the hot water handle. I use to wait a whole minute to get good hot water and now it is as fast as turning the handle. No more wasted water while waiting for it to warm up. The installation is very simple and the instructions are very clear to give you the do's and do not's for connecting it. The hardest part is running the #10 wire from the fuse box through the wall and under the counter.
                    by
                    • Recommended
                    1 found this review helpful
                    This is a very compact little water heater like you would find mounted under a sink. Construction...
                    This is a very compact little water heater like you would find mounted under a sink. Construction quality is good with almost all plastic components. No assembly required other than attaching the included pressure relief device. Pressure rating is adequate for any normal residential water service. Water flow for rated heating performance is low but is estimated adequate for a low volume shower. This device would be great for a half bath or a utility sink or single shower stall in a remote location like a garage which is where I will use mine. Water side hookup is easy with only two screwed fittings. Electrical requires 240V service.
                    by
                    • Recommended
                    2 found this review helpful
                    This well-designed and compact water heater is 12 inches wide, 7 inches high and 4 inches deep. A...
                    This well-designed and compact water heater is 12 inches wide, 7 inches high and 4 inches deep. At the bottom are two 3/4 inch threaded connections - blue one for cold inlet and a red one for the hot outlet. My new sink with dispenser has not yet arrived so the output result cannot be evaluated at this time. The front panel dial gives you four choices - Off, Low, Medium and High.
                    by
                    • Recommended
                    The ATMOR 13,000 Watt/240-Volt 2.25 GPM Electric Tankless Water Heater Includes Pressure Relief D...
                    The ATMOR 13,000 Watt/240-Volt 2.25 GPM Electric Tankless Water Heater Includes Pressure Relief Device, Ideal for a Full Bathroom appears to be exactly what it is titled it you look at the front side of the box only. Either your bathroom needs to already have multiple specifications before installing this unit, or you'll need an electrician to complete all of the necessary adjustments so that this will work (it needs its own outlet, must be at least 240v, and if that isn't already in your bathroom, you'll also have to make changes to your circuit breaker so that the newly installed outlet can handle it).
                    by
                    1 found this review helpful
                    Armor 13,000 Watt 2.26 GPM Electric Tankless Water Heater, that includes a pressure relief device...
                    Armor 13,000 Watt 2.26 GPM Electric Tankless Water Heater, that includes a pressure relief device, and is ideal for a full bathroom, was highly recommended to us by a professional, for use in our finished basement. Not installed yet, so I’m relying on expert advice to write this review. The install is quite simple and straightforward, instructions included. The unit carries a 2 year warranty, and 7 year warranty against leaks. No more paying to heat water that you’re not using, as this unit heats water on demand. This will save on utility bills quite nicely! Others, who have this unit, have reported to us no issues and are happy with the tankless heater. So we expect the same results.
                    by
                    • Recommended
                    1 found this review helpful
                    Showing 1-10 of 528 reviews

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                    Required Volt Connection

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                    Wattage (watts)

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                    Indoor/Outdoor

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                    Number of Showers

                    1-2

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                    Fuel Type

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