Item in product family


Item in product family

Call us 7 days a week


Know exactly what you want?

Save time with this quick order form. If you know the catalog/part numbers for the items you wish to purchase, enter them into your cart here. You can also browse the site and add items to your cart from any product page.

Quick Order

Item NumberQuantity
Return to Category List
ATMOR 3kW/110V Single Sink 0.5 GPM Electric Tankless Water Heater, Pressure Relief Device

Rollover image to zoom in

Click image to enlarge

See all 68 items in product family

ATMOR 3kW/110V Single Sink 0.5 GPM Electric Tankless Water Heater, Pressure Relief Device

Item #: WBB1583607

Sold By:

Usually ships in 5 to 8 days Estimated lead times do not include weekends or holidays. Transit time is determined by shipping method and destination. Orders requiring credit information might take additional time.

Price: $ 129.99
Product Information
Photo/Video Gallery
Customer Review
Product Q&A
Atmor AT-900-03 Point-of-Use Tankless Electric Instant Water Heater 3kW, 110V

In most US homes, the heating of water is usually the second largest energy expense, after space heating and cooling. Typical storage tank water heating can account for up to 30% of the average home energy bill. Inconvenient situations such as waiting for the hot water to reach the faucet, finding yourself with no more hot water while having to wait for the tank to heat up again, or constantly heating a storage tank of water even when it is not in use all add up to this expense. What if there was an all-around solution that saves you money, time, energy, and resources?
The Atmor Tankless Electric Instant Water Heater is the eco-friendly, efficient and convenient solution you have been looking for - delivering to you an endless supply of hot water instantaneously at the point of use only when you need it. It is suitable for residential and commercial applications, and even in your RV. Rest your mind at ease and enjoy the 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 well into your home environment among other appliances.

Features and Benefits:
  • On Demand Hot Water - Never a wait! A Constant, continuous flow of hot water only when you need it at the point of use.
  • Quit Wasting Water - eliminate wasting unused (cold) water while you wait for your hot water to finally make it to your faucet.
  • Never Run Out - Atmor's tankless electric instant water heaters provide you with an endless supply of hot water.
  • When you need it, Where you need it: Atmor's tankless electric instant water heaters are designed to be installed at the point of use.
  • Multiple Applications - Suitable for the Home, Office, Commercial properties, Apartments, Public Hand washing facilities, Schools, Service Stations, Airports, Bus/Train Stations, Shopping malls, RV's, Boats, Concession stands, and other point of use applications.
  • Longer Lifespan - The lifespan of a standard 40-gallon electric is typically less than half of a tankless electric instant water heater.
  • Helping the Environment -Atmor's tankless electric instant water heaters are small, compact, and mostly made up of recycled material.
  • Consume less energy, Save Money - Saving money twice: once when you buy the Atmor heater and then in each and every use, by simply heating just the consumed amount of water when you need it.
  • A Space Savor - The Atmor heater is installed either under the sink out of sight or near the point of use and leaves free storage space in your basement or attic.
  • Better Living - No scale and mineral build up due to the fact that the water temperature is not reaching 60°C/140°F and there is no storage of hot water.
  • Not a Plug in unit - Requires 10 AWG wire, 110V connection and a 30A dedicated breaker
  • Unit Dimensions (inches): 7.29 x 11.82 x 3.55
  • Unit Weight (lbs): 3.4 lbs
  • Minimum Activation Rate (gpm): 0.5
  • Water Flow @ Temperature Rise (gpm./°F): Flow Rate @ 35 F Rise (gallons/min): 0.6 gal (US)/min/Flow Rate @ 45 F Rise (gallons/min): 0.5 gal (US)/min/Flow Rate @ 77 F Rise (gallons/min): 0 gal (US)/min
  • Applications: 1-2
  • Equipped with Overheat Protection
  • Total Connection Load: 27A
  • Watts: 3000
  • Volts: 110
  • Phase: Single
  • Wall Mountable: Yes
  • Water Connection: Bottom of Unit
  • Water Connection Size (inches): 0.5
  • Safety Certifications: UL Listed
  • Warranty: 2 years (parts only) Limited Warranty, 7 years free from Leakage
Water Flow @ Temperature Rise (GPM/Degrees F.):
  • Flow Rate @ 35°F Rise (gallons/min): 0.6 gal (US)/min
  • Flow Rate @ 45°F Rise (gallons/min): 0.5 gal (US)/min
  • Flow Rate @ 77°F Rise (gallons/min): 0 gal (US)/min

Documents are in PDF format

Product Specifications

    • WIDTH INCHES11-13/16
    • DEPTH INCHES3-9/16
    • HEIGHT INCHES7-5/16
    • BRANDAtmor
    • TYPECold (Ambient)
    • WEIGHT LBS3-3/8
    • VOLTAGE110
    • WATTAGE3,000
    • APPLICATIONPoint of Use
    • AMPS27
    • PSI [MAX]230
    • CONNECTION TYPEBrass Inlet/Outlet Connection

Avg. Customer Rating: (4 customer reviews)

Write your own review

Sort by: 

4 Results

Just what I ordered

Your review: I did a lot of searching to find the tankless water heater that would operate on the 110 volt system. Global had the best price, had full specifications so I knew what I was getting, and it was shipped in a timely manner. I've very happy with the process from online ordering to delivery.

Pros: This was my first order from "Global" so I was a little apprehensive. Easy to order, great selection, and the prices are outstanding. And the delivery actually came in a few days earlier that expected.

Cons: Can't find anything bad to say at this time.

Is this review helpful?

Price is right, single unit usage

Your review: Price is right. This is good to support a single bathroom or kitchen. installing in a trailer for shower and sink application.

Pros: Price. runs off on 110 power, easy to install simple operation

Cons: Can't handle more than one usage. takes a while for hot water to come and three settings makes it hatd to adjust tempature

Is this review helpful?


Your review: exelente

Pros: exelente

Cons: exelente

Is this review helpful?

Amazing little HW heater

Your review: This book sized wall hung heater is perfect for my office bathroom and kitchenette sinks. Inexpensive, energy efficient, only turns on when called upon and just hot enough not to burn.

Pros: Small, easy to install in minutes with simple tools.

Cons: The 110v unit only makes warm water, not hot, but perfect for the right use.

Is this review helpful?

Sort by: 

4 Results

There are 4 questions and 1 answers for this product.

Sort by: 

4 Results

can this water heater be installed with the inlet/outlets going up so it can be installed under a sink?

Question Asked By: Steven , Port Charlotte, FL , April 04, 2018

+ View 1 Answer

Answer This Question

Sort by: 

4 Results