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Condition: Used: Good
Comment: Item has minor cosmetic damage to top, front or sides. Item has minor cosmetic damage on bottom or back. Lid has minor cosmetic damage. Minor cosmetic damage to the interior of the item. Item will come in original packaging. Packaging will be damaged.
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Rheem RTE 13 Electric Tankless Water Heater, 4 GPM

3.9 out of 5 stars 811 customer reviews
| 266 answered questions

Price: $199.99 & FREE Shipping. Details
Pay $16.59/month for 12 months ($199.99 total) with Equal Pay Financing on the Amazon.com Store Card. Learn more
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  • On-unit temperature control, LEDs indicate active element and standby mode
  • Standard 1/2" water connection
  • Rugged brass/copper heat exchanger
  • Modulating power. Specifications:Great for single shower applications, 240 Volts - 13KW, 4.0 GPM maximum flow rate
  • Please refer the User Manual for installation instruction.
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Frequently Bought Together

  • Rheem RTE 13 Electric Tankless Water Heater, 4 GPM
  • +
  • Siemens Q260 60-Amp 2 Pole 240-Volt Circuit Breaker
Total price: $209.46
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Technical Details

  • Easy to Install

Product Description

Product Description

Ideal for Point-of-Use Applications Continuous Hot Water on Demand Energy Efficient Compact Design - Fits Almost Anywhere On-Unit Temperature Control LEDs Indicate Active Element and Standby Mode Standard 1/2" Water Connection Rugged Brass/Copper Heat Exchanger Applications Homes Apartments Condos Hospitals Hotels Boats Restaurants Offices Laboratories ...anywhere hot water is needed! Model: RTE 13 Length: 10 Width: 7-1/4 Weight: 8 ELECTRICAL SPECIFICATIONS KW: 13 VOLTS; REQ.Breaker: 60 Double Pull; MAX POWER(AMP): 54 AWG WIRE: 6 Minimum Activation Flow rate(GPM): 0.4 Maximum Flow Rate(GPM): 4

From the Manufacturer

Continuous hot water on demand. 4 GPM. Ideal for point-of-use applications. Compact design fits almost anywhere. 13 kw, 240 v.

Product Information

Technical Details

Part Number RTE 13
Item Weight 7.3 pounds
Product Dimensions 7.2 x 7.2 x 7.2 inches
Item model number RTE 13
Size 4 GPM
Power Source sc
Voltage 240 volts
Wattage 13000 watts
Item Package Quantity 1
Flow Rate 4 GPM
Certification Energy Star
Special Features Easy to Install
Batteries Included? No
Batteries Required? No
Warranty Description Parts warranty: 1 year. Heat exchange warranty: 10 years. Warranties are only vaild if unit was installed by a licensed technician

Technical Specification

Additional Information

ASIN B003UHUSGQ
Customer Reviews
3.9 out of 5 stars 811 customer reviews

3.9 out of 5 stars
Best Sellers Rank #2,186 in Home Improvements (See top 100)
#2 in Home Improvement > Rough Plumbing > Water Heaters & Parts > Water Heaters
#195 in Home Improvement > Contractor Supply
Shipping Weight 7.3 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available May 19, 2010

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
The Rheem RTE “tankless” water heater is ingenious and the energy savings will pay for both the unit & install costs in only 17 months vs. keeping my 50 gallon electric tanked water heater.

I'm a mechanical engineer and was drawn to the unit's energy savings and ultra-compact size (9 x 10 x 5 inches {yes inches}). You likely won't believe it can provide you the hot water based upon it's small size. Booboo – you're wrong.

Why it works for me:

1. I'm a single person, take 1 shower a day, and do 2-3 loads of laundry a week, plus dishes.
2. I have a low-flow (1.5 GPM) [gallons per minute] water-saver shower head in my bathroom, saving water and also reducing the need to heat larger water flows required by standard shower heads generally at 2 - 2.5 GPM. However, even if you have a standard shower head – this unit will do you fine since it is rated up to 4 GPM.
3. A new tanked water heater (gas or electric) is $400 + $375 install costs. This unit is $193 + my $375 install costs to run a 60 AMP electric service and plumbing installation for the unit by an electrician/plumber.
4. It's tiny size (you won't believe it can work) frees up a storage space the size of the old heater.
5. Instead of having it on the highest heat setting, I set it to only 60% of the highest heat setting so that this setting provides me a very comfortable warm/hot shower water temperature without turning on the cold at all – therefore, heating only what I use (not blending overly hot with cold water) – further saving energy. I just set my clothes washing machine on “hot” and actually it is therefore at my hot/warm shower setting. Again, reducing electricity while working fine for clothes and dishes.

Financial Return on Investment:

1.
Read more ›
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Verified Purchase
I received a defective product from Rheem. I purchased the unit from Amazon.com and received it on June 25, 2014. I installed the plumbing but could not get a qualified professional electrician to install the electrical until Sept. 11th. He used #6 wiring and a double pole 260v breaker. When we turned the water heater on, it worked perfectly fine and delivered hot water as far away as 40 ft. The next morning when I turned it on I received no hot water. My electrician returned, checked everything out, including doing a diagnostic of the water heater we found on the Rheem web site, but he was unable to find the problem. I uninstalled the water heater and boxed it up, planning to send it to Rheem for warranty replacement since my Amazon return policy had expired.

I called Rheem customer service to make sure I followed proper warranty procedure. They referred me to the Technical Assistance unit. The first technician ask me if I was near the unit and I told him I had it in a box ready to send it back. He said he needed to run me through a diagnostic procedure and I told him a qualified electrician had already done it and declared it defective, probably in the small mother board of the unit. The technician told me I would need to reinstall it and call back to be guided through their diagnostics even though I told him we had done so using their recommended diagnostic procedure for the unit posted on their website. So, I reinstalled the unit and called him back. He asked me to do one check which I did and it did not test out. He stated he would need to elevate my problem and I assumed he was elevating me to customer service to return the water heater.
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Verified Purchase
Rheem RTE 13 Electric Tankless Water Heater, 4 GPM
I just finished installing this water heater in my yoga studio. I have a powder room and an outside shower, with a laundry sink in the garden shed. This heater is amazing. I have it set on "medium" and the water is plenty hot and almost instantaneous. I have used the shower a few times and not run out of hot water. Plenty of volume for my needs. It is about the size of a Webster's dictionary and very easy to mount. Be aware that you need to run at least 3' of copper tubing from both sides of this thing so if you have plastic pipe you will have to make modifications. Also, you need to have enough electric service to handle a 240v, 60A breaker. It says to use 6 ga. wire, but the pigtail on the unit is 8 ga. Use your own judgement here.
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Verified Purchase
I wanted to use this atleast a couple weeks before reviewing it. First off, I live alone, but in a 3 bathroom house. I have been keeping 50 gals of water hot in my basement for 25 yrs and finally decided to wake up. I installed this heater as a whole house heater in the basement where my old tank heater was. I was ready to deal with less than super hot showers, but I am amazed how well this works in both 1st floor bathrooms (1 tub, one shower), and even the 2nd floor bath(shower). Hotter water than I can tolerate in each one. BUT I DID LEARN THIS! I bought a 1.25 gpm shower head figuring I better cut back from my 2.5+ heads with this much smaller heater. WRONG! The first floor shower was hot and cold because i wasn't pulling enough hot water to keep the heater on. I then tried a 2.0 gpm in the downstairs shower. PERFECT. Consistent water as hot as I could want it (and I do not have the heater at full steam). Knowing the 2nd floor shower would have less pressure, I left the 2.5 gpm head on there, and again, perfect shower, no temp changing, hotter than I needed, and lasts forever if wanted. It still takes the same amount of time for hot water to get to my 2nd floor. I have always preferred a 5 min shower with a good shower head vs. a 10 min shower with a trickling shower head, so I do not think I am wasting any water. AGAIN, I am one person in this house, and have no problem NOT doing laundry, showering, and/or dishes at the same time. A couple or family could be perfectly fine with this heater if they could aviod doubling up on water usage. Not really that hard in my book, but your call. I also insulated ALL exposed pipes in my basement, under sinks, and some in the walls to help keep the heat in the pipes.Read more ›
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