Rheem EcoSense RETE-13 - 13KW Electric Tankless Water Heater-RETE 13 - The Home Depot

Rheem EcoSense

Model # RETE 13

Internet # 202514583

Store SKU # 452637

RETE-13 - 13KW Electric Tankless Water Heater

Rheem EcoSense RETE-13 - 13KW Electric Tankless Water Heater

This item has been discontinued.
The Home Depot no longer carries this specific product.

$179.00 / each
  • Uses energy only when hot water is needed
  • Compact design allows simple installation almost anywhere
  • On unit control allows for easy temperature adjustment


Model # RETE 13

Internet # 202514583

Store SKU # 452637

Store SO SKU # 1000114405

The Rheem EcoSense RETE-13 Tankless Electric Water heater features a rugged brass and copper heat exchanger that is designed to withstand tough water conditions for long life. Its lightweight and compact design saves space and enables simple installation in a variety of locations. It is designed to provide hot water for a single bathroom in warmer climates or continuous hot water at a single point-of-use faucet in colder climates. Please click the "More Info" Tab and the "Specifications" to view the Rheem Brochure Guide to assist you in your purchasing decision.

  • Provides a maximum of 2.54 GPM continuous flow at a 35 degree Fahrenheit temperature rise
  • Designed to provide continuous hot water for a single bathroom in warmer climates or continuous hot water at a single point-of-use faucet in colder climates
  • Flow rate provided by a tankless electric water heater is dependent on the difference in temperature of the incoming cold water supply and the desired hot water delivery temperature
  • 13 kw water heater requires a 240 volt electrical service, a dedicated 60 amp breaker and 6 gauge copper wiring
  • Energy efficient, uses hot water only when needed
  • On-unit temperature controls and LED lights indicate active elements and system operation
  • Modulating control adjusts power consumption to meet the required hot water temperature and flow rate
  • Rugged brass and copper heat exchanger is designed to withstand tough water conditions for long life
  • Lightweight and compact design saves space and enables simple installation in a variety of locations
  • Requires 240 Volt Electrical connection
  • Equipped with ½ in. water connections for easy installation
  • Modulating Control adjusts power consumption to meet the required hot water / temperature flow rate

    How to Choose Your Rheem EcoSense Tankless Electric

    Choose your application, ie. shower, bath tub or vanity sink-faucet, kitchen sink faucet or washer. See chart below.

    For example: you choose a kitchen sink faucet.

    See application chart below and locate your flow rate. For example: your flow rate is 1.5 gpm.

    On the map, locate the average water temperature in your area.

    For example: your water temperature (in Atlanta) is 55°

    Use the water temperature and flow rate chart to determine the model you need.

    For example: 1.5 gpm flow rate + 55° = RETE 9.

Info & Guides

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Assembled Depth (in.)  3 in  Assembled Height (in.)  10 in 
Assembled Width (in.)  7.25 in  Product Depth (in.) 
Product Height (in.)  10  Product Width (in.)  7.25 in 
Water Connection Size (in.)  1/2 
Amperage (amps)  54  Electric Product Type  Point of Use 
Finish Family  Gray  Flow Rate @ 35 F Rise (gallons/min)  2.54 gal (US)/min 
Flow Rate @ 45 F Rise (gallons/min)  1.97 gal (US)/min  Fuel Type  Electric 
Indoor/Outdoor  Indoor  Maximum Temperature (F)  125 
Minimum Activation Rate (gpm)  .4  Minimum Temperature (F) 
Point-Of-Use  Yes  Product Weight (lb.)  8 lb 
Residential/Commercial/industrial Use  Residential or commercial  Returnable  90-Day 
Water Connection Location  Side  Water Heater Features  No Additional Features 
Wattage (watts)  13000 
Warranty / Certifications
Certifications and Listings  2-UL Recognized  ENERGY STAR Certified  No 
Labor Warranty  No Warranty  Part Warranty  1 Year 


Rated 4.3 out of 5 by 199 reviewers.
Rated 4 out of 5 by Super happy Replaced my traditional tank water heater and saves us money on our electric bill. The water gets as hot as you need and gets hot FAST. My only complaint is the water temperature will occasionally fluctuate (losing heat) while taking a shower, but it's only a minor irritation. August 28, 2014
Rated 5 out of 5 by Install in-Line for optimal performance I installed this unit in-line, so that I can use the tankless hot water heater or the existing gas heated water tank. I turn on the tankless heater, when only one or two persons are in the house or in the summer. I turn off the tankless and turn on the gas water tank when visitors are expected. The installation took about 20 minutes and only required a wrench, a screw driver and one additional copper pipe connector, Please see my photo of the installation to see how this works. October 30, 2014
Rated 5 out of 5 by Excellent Product. I have TWO of these installed so that I can get twice as much Instant Hot Water for my whole house anytime I want. The original manufacturer of this Design won a contest NASA Held for the Space Shuttle Program Water Heaters. The Company was in Florida and still exists today. I've had mine for 10 years, then had to replace one when the unit was clogged and I didn't catch it in time. I originally setup two so I'd have a backup if the other went down, (which will work fine if you do the piping properly). But since these are 1/2" inch input, you won't get tons of Hot water like you do when two of them are working! A Great Product! Easy to install, even easier to replace (If you ever need to!). May 13, 2014
Rated 5 out of 5 by Excellent Value Not just a point of use water heater. I use this as my whole house water heater. For 1 or 2 person households in the south, it is an extremely inexpensive and space saving alternative to a conventional tank model water heater.You don't really want to take a shower while something else is using hot water, but I always felt that was true for a tank heater as well. I had to have my electric panel upgraded, which I paid a pro to do, but actually installing the heater isn't that difficult for an experienced do-it-yourselfer comfortable with plumbing and wiring. The best feature of the tankless heaters, in my opinion, is that the supply of hot water is unlimited. You need a long hot shower for a stiff back? No Problem. Two people need to take showers one right after the other? No Problem. Do a load of wash with hot water right after? No Problem. You never have to wait for that whole tank to heat again or finish a shower with cold water. Saves money with the electric bill, too. January 14, 2014
Rated 4 out of 5 by great price for this product,lots of usable space after installation The unit is small but powerful .After my wife and I installed the unit we had tons of space under are kitchen cabinet for extra pots and pans.This unit provides plenty of continuous hot water to kitchen sink witch is 2 feet away and bathroom fixtures witch are 20 feet away! It currently can raise the ground water temperature from 57.7 degrees ferenheight to 150 degrees ferenheight, The temperature adjustment knob is perfectly placed and clearly marked for user friendly changes. It may be wise to install anti scalding device if you have children and or elderly in the house hold. I did"nt do the math but I"am sure this unit will save me 10 to 20 dollars a month in electricity. November 22, 2013
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