Rheem EcoSense 4.0 GPM Max Flow Rate 240 Volt 13kw Electric Tankless Water Heater-RETE 13 at The Home Depot
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Rheem EcoSense

Model # RETE 13

Internet # 202514583

Store SKU # 452637

4.0 GPM Max Flow Rate 240 Volt 13kw Electric Tankless Water Heater

Rheem EcoSense 4.0 GPM Max Flow Rate 240 Volt 13kw Electric Tankless Water Heater

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

$179.00 / each
Item cannot be shipped to the following state(s): GU,VI


Model # RETE 13

Internet # 202514583

Store SKU # 452637

Store SO SKU # 429868

The Rheem EcoSense Tankless Electric water heater is ideal for point of use applications providing continuous hot water on demand. The rugged brass/copper heat exchanger is designed to withstand the toughest water conditions and will heat water only when it is needed, eliminating costly stand-by heat loss. The light weight compact space saving design allows the unit to fit almost anywhere. The on unit temperature controls and LED's indicate active element and standby mode. Standard 1/2 in. water connections and power supply cord for wiring to electrical disconnect box allows for easy installation (240 volt hard wired electricity required) . Excellent option for remodeling and additions. Applications include, Homes, Apartments, Condos, Hospitals, Hotels, Boats, Restaurants, Offices, Laboratories, anywhere hot water is needed. Please click the "More Info" tab and then "Specifications" to view the Rheem Brochure Guide which will help you in your buying decision to ensure that you purchase the right tankless water heater model for your household needs.

  • 13 kw 240 volt electric tankless water heater provides continuous hot water on demand
  • Can provide small quantities of continuous hot water for point of use applications
  • 10-year limited warranty on heat exchanger, 1 year limited warranty on parts
  • Uses energy only when hot water is needed
  • Rugged brass/copper heat exchanger for longer life
  • Compact design allows simple installation almost anywhere
  • On unit control allows for easy temperature adjustment
  • LED indicators show active elements and standby mode
  • LED indicators show active elements and standby mode
  • 4.0 GPM Max Flow Rate
  • 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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Amperage (amps)  54  Assembled Depth (in.)  3 in 
Assembled Height (in.)  10 in  Assembled Width (in.)  7.25 in 
Certifications and Listings  2-UL Recognized  ENERGY STAR Certified  No 
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 
Flow Rate @ 77 F Rise (gallons/min)  1.15  Fuel Type  Electric 
Indoor/Outdoor  Indoor  Labor Warranty  No Warranty 
Maximum Temperature (F)  125  Minimum Activation Rate (gpm)  .4 
Minimum Temperature (F)  0 °F  Part Warranty  1 Year 
Point-Of-Use  Yes  Product Depth (in.) 
Product Height (in.)  10  Product Weight (lb.)  8 lb 
Product Width (in.)  7.25 in  Residential/Commercial/industrial Use  Residential or commercial 
Returnable  90-Day  Water Connection Location  Side 
Water Connection Size (in.)  1/2  Water Heater Features  No Additional Features 
Wattage (watts)  13000 


Rated 4.4 out of 5 by 161 reviewers.
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
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 4 out of 5 by Simple set up! Plumbing this tankless heater was quite simple. Wiring it was more difficult. I needed to replace my double 30 amp. breaker with a double 60 amp. Use 6 gauge wire from the breaker to the 8 gauge wire coming out of the heater. A wiring diagram would have been very helpful. I have 38 degree water coming in from a well and it heats it to 105 degrees fast. February 1, 2014
Rated 5 out of 5 by Rheem 13kW Tankless Water Heater Super Easy installation I Installed this about 3 weeks ago to provide hot water to my shop sink, shower and clothes washer in my workshop. This heater works very well so far! It was super-easy to install. I used 1/2" Pex tubing for inlet and outlet. So simple and efficient. For handymen, this is a very easy install & plumb process. It comes with a short electrical cord which i wired to a utility box mounted next to the unit. I ordered the Square D 60 AMP breaker from Home Depot at the same time. Super easy to mount. It is amazingly compact! Love it! November 21, 2013
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