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Rheem RTE-18 Electric Tankless Water Heater - 18 kW
Model#: RHMNRTE-18
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Condition:
New

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New
Brand new items;Full manufacturer warranty available
Reconditioned
Manufacturer inspected, repaired and tested items; CPO 60 day money back guarantee
Open Box
New or Recon items with possible minor cosmetic damage; CPO 60 day money back guarantee
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Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Rheem RTE-18 Electric Tankless Water Heater - 18 kW

Model#: RHMNRTE-18
Retail:
$499.99
Our Price:
$449.99
Sale Price:
$389.99
You Save:
$110.00 (22%)
In Stock
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Free Shipping (continental U.S.)

Product Overview

Additional Information

Details

Continuous, on demand, hot water and a compact design means this Electric Tankless Water Heater is perfect for point-of-use applications.
Features:
  • Can heat a maximum of 5 gallons per minute
  • Energy efficient when compared to traditional water heaters
  • On-unit temperature control
  • LEDs indicate active element and standby mode
  • Standard 1/2 in. water connection
  • Rugged brass/copper heat exchanger
  • Great for homes, condos, hospitals, boats, offices, laboratories, and anywhere hot water is needed
Includes:
  • 18 kW Electric Tankless Water Heater - RTE-18

Specifications

Weight: 12 lbs.
Activation Flow: 0.40 GPM
Amperage: 75
Application: Point-Of-Use
Kilowatts: 18
Required Breaker: (2) 40 Amp
Water Connection: 1/2 in. NPT
Wire Size: (2) 8 Gauge

Reviews

Product Reviews

REVIEW SNAPSHOT®

by PowerReviews
RheemElectric Tankless Water Heater - 18 kW
 
4.1

(based on 7 reviews)

83%

of respondents would recommend this to a friend.

Pros

  • Works quickly (6)
  • Energy efficient (5)

Cons

    Best Uses

    • Home (5)
    • Office (3)
      • Reviewer Profile:
      • Homeowner (6)

    Reviewed by 7 customers

    Sort by

    Displaying reviews 1-5

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    (1 of 1 customers found this review helpful)

     
    4.0

    Excellent on-demand water heater

    By JIm

    from Oklahoma

    About Me Handyman, Homeowner, Professional

    Verified Buyer

    Pros

    • Energy Efficient
    • Precise Controls
    • Works Quickly

    Cons

      Best Uses

      • Home
      • Large Homes
      • Office
      • Small Homes

      Comments about Electric Tankless Water Heater - 18 kW:

      It lasted almost 4 years before leaking, but I'm still happy with the model. I did a lot of research before I bought the first and the RTE-18 was the best in my price range. My new one is an RTE-18 also; plug and play so to speak.

      (1 of 1 customers found this review helpful)

       
      4.0

      Hot but Thankless

      By BJ Trailer

      from Tujunga, CA

      About Me Homeowner

      Verified Buyer

      Pros

      • Works Quickly

      Cons

        Best Uses

        • Home

        Comments about Electric Tankless Water Heater - 18 kW:

        Installed in a single-wide trailer to provide water for the shower and sinks. Works well - love having hot water! - but requires hook up to it's own 75 amp circuit.

        (1 of 4 customers found this review helpful)

         
        4.0

        THE NAME SAY'S IT ALL

        By GRASS MAN

        from NASHVILLE TN

        About Me Homeowner

        Verified Buyer

        Pros

        • Energy Efficient
        • Works Quickly

        Cons

          Best Uses

            Comments about Electric Tankless Water Heater - 18 kW:

            HOT STUFF

            (14 of 14 customers found this review helpful)

             
            3.0

            Ok heater after painful exchange process

            By mastro

            from near Boston

            About Me Homeowner

            Verified Buyer

            Pros

            • Works Quickly

            Cons

            • Not Hot Enough

            Best Uses

            • Office

            Comments about Electric Tankless Water Heater - 18 kW:

            We chose this model to to provide warmish water in winter and hot water in summer to our sink in a New England horse barn. The half inch copper pipe run is only six insulated, interior feet from heater to sink, and we have brand new 8-gauge wiring to 2x40 amp breakers in a new 200 amp panel 20 feet away. When we first turned it on at 3+ GPM there was no discernible rise in temperature above 45 degrees. Only after throttling down to below 1.5 GPM could we get a 35 degree temperature rise. My electrician says the interior heating elements looked like it was a refurb gone wrong. The first unit was clearly defective, but we could not get any of several people at Rheem to admit it to me, my electrician, or my plumber over several phone calls. Only after much further haggling and jumping through hoops with Rheem and some help from CPO was I able to negotiate a replacement. The second unit was shipped quickly by CPO, but there was some warping or bending to the front panel so that it fits poorly on the main housing. My electrician suspected another refurb. Otherwise the second RT-18 works about as expected at nearly the specified rise and flow to provide adequately warm water in winter. No way can my particular unit supply more than one sink at a time in our location in February, but we expected no more than that. We would buy another product from CPO again, but not Rheem. From our perspective Rheem's customer service efforts were geared toward preventing a legitimate return rather than satisfying the customer. After too many hours already wasted it's just easier to live with a less than perfect second unit rather than pay my electrician and plumber yet again to roll the dice on a third unit. In an age of online reviews its very unwise of Rheem to wear down a customer rather than doing the right thing from the very beginning. At least CPO, the retailer, acted as if they understand that.

            (4 of 4 customers found this review helpful)

             
            5.0

            Electric Tankless Water Heater - 18 kW

            By Joe

            from Etna,Maine

            About Me Handyman, Homeowner, Professional

            Verified Buyer

            Pros

            • Energy Efficient
            • Long-Lasting
            • Precise Controls
            • Works Quickly

            Cons

              Best Uses

              • Home
              • Office
              • Small Homes

              Comments about Electric Tankless Water Heater - 18 kW:

              Bought over-sized unit so it could do whole house if I needed to due to increaseing oil cost . Will do up-to 5 GPM , I only need it on kitchen faucet at this time at a flow of 2 GPM . Very capable unit . Fit right under my kitchen sink .Quiet and quick .

              Displaying reviews 1-5

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              Questions & Answers

              Do you have questions about this product?

              Get answers from real customers and in-house experts with AnswerBox.

              3 Questions | 5 Answers
              Displaying questions 1-3
              • Electric Tankless Water Heater - 18 kW

                Q:

                Do you sell parts for this heater? We installed one in February and are having trouble with it over heating and tripping the eco. The power keeps running after the water is turned off, and thought it might be the temperature control box.
                Asked on 12/9/2014 by Wayne

                1 answer

                • Staff Reviewer

                  A:

                  Please contact Rheem directly at 866-720-2076 for parts.

                  Answered on 3/3/2015 by RS from Atlanta
              • Electric Tankless Water Heater - 18 kW

                Q:

                my home is a 2 bath and I have 4 b.r. Have 3 kids and 2 adults. what size is ok...
                Asked on 11/20/2014 by Harvey from United States

                1 answer

                • Staff Reviewer

                  A:

                  With 2 baths and 5 residents I would recommend nothing smaller than the RTE-18, a safe bet would be the RTE-27.

                  Answered on 3/5/2015 by Taylor from Atlanta,GA
              • Electric Tankless Water Heater - 18 kW

                Q:

                Why don't someone state how many volts these units need? If these are placed under the sink, do we need to run 220 volts to our sink area, most of us only have 110 at the sink area. Don't understand why this info is not in the specs.
                Asked on 10/7/2014 by Sparky

                3 answers

                • Staff Reviewer

                  A:

                  You can tell voltage by number of breakers listed under specifications. Example 2/40 amp breakers implies 220volt. One breaker is 110volts

                  Answered on 4/3/2015 by Anonymous
                • A:

                  One would logically think that it is 240 volt as it states 2-40Amp What they forget to mention is that you need 2 40Amp double breakers. BIG difference!

                  Answered on 4/1/2015 by Rich from Phila, PA
                • A:

                  You can tell voltage by number of breakers listed under specifications. Example 2/40 amp breakers implies 220volt. One breaker is 110volts.

                  Answered on 12/7/2014 by notrocking from Pointblank, Tx
              Displaying questions 1-3

              Do you have a question about this product? 

               

              Warranty

              LIMITED WARRANTY
              RHEEM® or RUUD® Residential Tankless Gas Water Heaters

              GENERAL

              This Limited Warranty is only available to the original owner of this water heater. It is not transferable. Rheem Manufacturing Company (Rheem) warrants this Rheem or Ruud water heater, and its component parts, to be free from defects in materials and workmanship, under normal use and service, for the Applicable Warranty Period. At its option, Rheem will repair or replace the defective water heater, or defective component part(s), in accordance with the terms of this Limited Warranty, if it fails in normal use and service during the Applicable Warranty Period. The replacement water heater must be manufactured by Rheem. The replacement component part(s) must be Rheem authorized component part(s). The replacement unit will be warranted only for the unexpired portion of the original unit's Applicable Warranty Period.

              EFFECTIVE DATE

              The Effective Date of warranty coverage (or the beginning of the Applicable Warranty Periods) is the date of installation of the water heater, if properly documented. Otherwise, it is the date of manufacture of the water heater plus ninety (90) days.

              APPLICABLE WARRANTY PERIODS

              The Applicable Warranty Periods are ten (10) years from the Effective Date for the heat exchanger and three (3) years from the Effective Date for the component parts if the water heater is installed in a single-family dwelling. If the water heater is installed anywhere other than a single-family dwelling or in any system in which the water is recirculated, the Applicable Warranty Periods will be limited to one (1) year from the Effective Date.

              APPLICABLE WARRANTY PERIODS FOR PURCHASES AFTER 7/1/08 or a 53, 66, or 74 Model Rheem Tankless Water Heater

              The Applicable Warranty Periods are twelve (12) years from the Effective Date for the heat exchanger and five (5) years from the Effective Date for the component parts if the water heater is installed in a single-family dwelling. If the water heater is installed anywhere other than a single-family dwelling or in any system in which the water is recirculated, the Applicable Warranty Periods will be limited to one (1) year from the Effective Date.

              APPLICABLE WARRANTY PERIODS FOR PURCHASES BEFORE 7/1/08 or a 42 Model Rheem Tankless Water Heater

              The Applicable Warranty Periods are twelve (12) years from the Effective Date for the heat exchanger and five (5) years from the Effective Date for the component parts if the water heater is installed in a single-family dwelling. If the water heater is installed anywhere other than a single-family dwelling or in any system in which the water is recirculated, the Applicable Warranty Periods will be limited to one (1) year from the Effective Date.

              All Applicable Warranties will be limited to three (3) years from the Effective Date if the water heater is installed in a system in which the water is re-circulated, but not if its an on-demand re-circulation system which utilizes existing hot and cold water lines, or a dedicated return line without the use of a temperature sensor, timer, or a continuously operating pump

              All Applicable Warranties will be limited to three (1) year from the effective date if the water heater is installed anwhere other than a single-family dwelling.

              WARRANTY EXCLUSIONS

              This Limited Warranty will not cover:

              1. Service trips to your home to teach you how to install, use, or maintain this water heater or to bring the water heater installation into compliance with local building codes and regulations.
              2. This residential tankless water heater if it is installed for use in: spa or pool heating; a mobile home; a recreational vehicle; a boat or any other watercraft.
              3. Units installed in any circulating system in which the temperature of the incoming water to the water heater is in excess of 120° F.
              4. Damages, malfunctions or failures resulting from failure to install the water heater in accordance with applicable building codes/ordinances or good plumbing and electrical trade practices.
              5. Damages, malfunctions or failures resulting from improper installation or failure to operate and maintain the unit in accordance with the manufacturer's instructions provided, including outside of recommended water quality levels as listed in the chart below:
              6. Performance problems caused by improper sizing of the water heater or the gas supply line, the venting connection, combustion air openings, electric service voltage, wiring, or fusing.
              7. Damages, malfunctions or failures caused by improper conversion from natural gas to LP gas or LP gas to natural gas fuel source.
              8. Damages, malfunctions or failures caused by operating the water heater with any parts removed or with modified, altered, or unapproved parts installed.
              9. Damages, malfunctions or failures caused by abuse, accident, fire, flood, freeze, lightning, acts of God and the like.
              10. Heat exchanger failures (leaks) caused by operating the water heater in a corrosive or contaminated atmosphere or damages, malfunctions or failures caused by lime or mineral build-up.
              11. Damages, malfunctions or failures caused by operating the unit at water temperatures exceeding the maximum setting of the operating, or high limit, control.
              12. Heat exchanger failures caused by operating the water heater when it is not supplied with potable water.
              13. Damages, malfunctions or failures caused by subjecting the heat exchanger to pressures, or firing rates, greater than those shown on the rating label.
              14. Damages, malfunctions or failures resulting from the use of any attachment, including any energy saving device, not authorized by Rheem.
              15. Units installed outside the fifty states (and the District of Columbia) of the United States of America and the Dominion of Canada.
              16. Units removed from the original installation location and reinstalled elsewhere.
              17. Units that have had their rating labels altered, tampered with, or removed. A water heater should not be operated if the rating label is removed.

              LABOR, SHIPPING, AND PROCESSING COSTS

              This Limited Warranty does not cover any labor expenses for service, repairs, reinstallation, permits, or removal and disposal of the failed water heater, or defective component part(s). All such expenses are your responsibility. Rheem will pay the transportation costs for an “in-warranty” replacement water heater, or “in-warranty” replacement component part(s), to a convenient delivery point (selected by Rheem) near the place the original water heater, or original component part(s), is located: such as a local Rheem or Ruud water heater distributor.You must pay any local freight charges, including the cost of returning the failed water heater, or defective component part(s) to a convenient shipping location (selected by Rheem): such as a local Rheem or Ruud water heater distributor. Rheem does not authorize, recommend, or receive any benefit from any claims processing or similar fees charged by others to process warranty claims for any Rheem or Ruud water heater or component part(s). Rheem will not reimburse any party for these, or any other, fees not specifically covered in this Limited Warranty document.

              HOW TO OBTAIN WARRANTY CLAIM ASSISTANCE

              Any claim for warranty assistance must be made promptly. First, determine if your water heater is “in-warranty” (that is, within the Applicable Warranty Period).You can determine your unit's warranty status by adding its Applicable Warranty Period to its date of installation. However, if you do not have documentary proof of your water heater's date of installation, your unit's warranty status will be based on its date of manufacture. The first four digits of the unit's serial number represent the month and year it was manufactured. Add the Applicable Warranty Period plus ninety (90) days to the date of manufacture to determine whether the water heater is still covered by this Limited Warranty.You may also determine your unit's warranty status by obtaining the complete model number, complete serial number, and date of installation of your water heater and then accessing the “Warranty Verification” information on Rheem Water Heaters' internet website (www.rheem.com) or contacting Rheem Water Heaters' Claims Department (telephone (800) 621-5622) during normal business hours (in the Central Time Zone) to determine if the Applicable Warranty Period has expired. If your water heater is “in-warranty”, contact the plumber, or mechanical contractor, that installed it for assistance with the warranty repairs, or replacement, required.You may also select a plumber, or mechanical contractor, from your local Yellow Pages to assist you. Rheem Water Heaters' Technical Service personnel are available to assist you (by telephone at (800) 432-8373 or via e-mail at techserv@rheem.com) in obtaining “in-warranty” service or to answer your questions about the operation or repair of your water heater during normal business hours (in the Central Time Zone). Be prepared to provide the plumber, mechanical contractor, or Rheem Technical Service person you call with the complete model number, the complete serial number, and the date of installation of your water heater in addition to an explanation of your water heater problem. If an exact replacement is not available, Rheem will provide you with the current model of your water heater, or component part(s), or a replacement unit with comparable operating features. If government regulations or industry certification or similar standards require the replacement water heater, or replacement component part(s), to have features not found in the defective water heater, or the defective component part(s), you will be charged for the difference in price represented by those required features. If you pay the price difference for those required features and/or to upgrade the size and/or other features available on a replacement new water heater, you will also receive a complete new Limited Warranty (with the full Applicable Warranty Periods) for the replacement new water heater. Rheem reserves the right to inspect, or require the return of, the failed water heater or the defective component part(s). Each “in-warranty” failure water heater must be made available to Rheem (with the rating label and all the component parts intact) in exchange for the replacement water heater. Each defective “in-warranty” component part to be replaced must be returned to Rheem in exchange for the replacement component part. Warranty compensation is subject to validation of “in-warranty” coverage by Rheem Claims Department personnel.

              • To obtain warranty compensation for an “in-warranty” water heater failure, you must provide Rheem with: (at Rheem's option) either the failed water heater (with the rating label and all the component parts intact) or the complete original rating label (photocopies are not acceptable) removed from the failed water heater; the complete model number and the complete serial number of the Rheem or Ruud water heater that replaced the failed unit; and the date the original water heater failed.You may also be required to provide documentary proof of the failed water heater's date of installation to establish its “in-warranty” status.
              • To receive warranty compensation for an “in-warranty” defective component part, you must provide Rheem with: the defective component part; the complete model number and the complete serial number of the Rheem or Ruud water heater from which the defective component part was removed; and the date the defective component part failed.You may also be required to provide documentary proof of the date of installation of the Rheem or Ruud water heater from which the defective part was removed — or the date of purchase of the part (if it was purchased separately) — to establish the “in-warranty” status of the defective component part.
              Warranty claim documentation should be mailed promptly to
              Rheem Water Heaters, Claims Department
              2600 Gunter Park Drive East
              Montgomery, Alabama 36109