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Internet #206934781

Model #ECO180XLP3-1

Store SKU #1001753531

Performance Plus 8.4 GPM Liquid Propane Outdoor Tankless Water Heater

$89900
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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Energy saving: only heats water on demand
  • Compact size frees more space in your home
  • Continuous hot water for 1-3 showers at once; see Sizing Guide
  • View More Details
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Price:
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Product Overview

The Rheem ECO180XLP3-1 Outdoor Liquid Propane Gas Tankless Water Heater can provide up to 8.4 GPM at a 35° temperature rise. The 180,000 BTU Liquid Propane Gas Tankless Water Heater is designed to supply continuous hot water for up to 2 or 3 bathrooms at the same time. It heats water only when it's needed and has a 0.81 uniform energy factor. This compact heater exceeds the requirements for many utility rebate programs. It comes with a remote digital thermostat that can be installed in almost any convenient area of the house. This heater's outdoor design requires no additional venting and features freeze protection to -30°F. This model can be used at elevations up to 9,840 ft. above sea level. Please see the 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.
  • Click here for our Sizing Guide to ensure you choose the right Rheem tankless model for your region and usage
  • Outdoor tankless gas water heaters require no additional venting
  • 8.4 GPM tankless water heater at a 35° temperature rise can provide enough hot water to supply a 2-3 bathroom home
  • Tankless gas water heaters heat water on demand, saving energy compared to many standard gas tank-type water heaters
  • 12-year limited warranty on heat exchanger and 5-year limited warranty on parts
  • 0.81 uniform energy factor meets or exceeds minimum energy efficiency standards
  • Remote digital display shows precise temperature setting and maintenance codes
  • Hot start programming helps to minimize fluctuation in water temperature during periods of frequent on/off operation
  • Ability to link 2 like units together for high demand applications with the EZ-link cable (sold separately)
  • Commercial conversion kits available for commercial applications
  • Great for homes with 2 to 3 bathrooms
  • Call 1-855-400-2552 before noon for same-day installation service in most areas, or visit our Water Heater Installation page for more information.
  • Click here for more information on Electronic Recycling Programs
  • California residents

Info & Guides

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BrandRheemRheemRheemRheem
NamePerformance Plus 8.4 GPM Liquid Propane Outdoor Tankless Water HeaterPerformance Plus 8.4 GPM Natural Gas Outdoor Tankless Water HeaterPerformance Plus 9.5 GPM Natural Gas Outdoor Tankless Water HeaterPerformance Plus 9.5 GPM Natural Gas Indoor Tankless Water Heater
Price
$89900
$89900
$99900
$99900
Ratings
(610)
(610)
(612)
(611)
Indoor/OutdoorOutdoorOutdoorOutdoorIndoor
Gas TypeLiquid PropaneNatural GasNatural GasNatural Gas
Number of Showers1-31-32-42-4
Application TypeResidentialResidentialResidentialResidential
Flow Rate @ 45°F Rise (gallons/min)6.76.77.47.4
Efficiency LevelHighHighHighHigh
Water Heater FeaturesUltra LoNoxUltra LoNoxUltra LoNoxUltra LoNox
Fuel TypeGasGasGasGas
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
8.875
Product Height (in.)
23.625
Product Width (in.)
13.875
Vent diameter (in.)
0.0
Water Connection Size (in.)
0.75

Details

Application Type
Residential
BTU Rating
180000
Commercial/Residential
Residential
Efficiency Level
High
Finish Family
Gray
Flow Rate @ 35°F Rise (gallons/min)
8.4 gal (US)/min
Flow Rate @ 45°F Rise (gallons/min)
6.7
Flow Rate @ 55°F Rise (gallons/min)
5.4
Flow Rate @ 65°F Rise (gallons/min)
4.5
Fuel Type
Gas
Gas Connection Size
0.75
Gas Type
Liquid Propane
Heat Exchanger Warranty
12 Year
Indoor/Outdoor
Outdoor
Maximum Temperature (F)
140
Minimum Activation Rate (gpm)
.40
Minimum Temperature (F)
85
Number of Showers
1-3
Pack Size
1
Product Weight (lb.)
54
Required Volt Connection
120 volt
Returnable
90-Day
Total BTU
180000 Btu
Uniform Energy Factor
0.81
Vent Type
Single Wall
Water Heater Features
Ultra LoNox
Wattage (watts)
0

Warranty / Certifications

Certifications and Listings
CSA Listed,UL Listed
Labor Warranty
1 Year
Part Warranty
5 Year

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
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  • What are the dimensions of the product?

Customer Reviews

  • 4.3
    out of 612 reviews
  • 78% recommend this product
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Showing 1-10 of 612 reviews
This tankless water heater not good for all buyers. Doesn’t work if you have shared vent in middl...
This tankless water heater not good for all buyers. Doesn’t work if you have shared vent in middle of the house, our vent located in the middle, our central heat in the garage up to the roof passing first and second floor. Our previous tank water heater on the first floor connected to the vent in the middle. When we hocked the tankless vent didn’t work, no matter what we did we got error 11, first we thought the gas source small 5/8 , we replaced with bigger ¾ same error 11. Finally after we spent a lot time and money we figured out the vent issue, after we removed 90 degree connected, worked, but that is not possible, if we keep it that way will kill all of us with carbon monoxide also violating the city code. So please think twice before you buy it. One more thing, you really not going to save money on gas, in fact you will use more gas and electric, and loud , we tried it for one day (with vent pipe off) to see if worth to make it work, but not, just not worth the hassle . Sure works if install in wall and vent goes directly outside. Hope home depot will return it, we spent twice of the purchase price, and they know you will spend a lot to make it work.
by Adam
    13 people found this helpful
    Great so far-still new
    Just got this in 3 days ago, the install went easy, instructions are good. Unit is very quiet, I was concerned a bit because I was hanging it outside my daughters room (outside model) and thought it might be loud, but its super quiet. Water temp is spot on when I measured the temp in the house, heats up pretty quick. I do get a P1 error when turning the shower water down to a dribble (washing the dog) which means the pressure is too low (SOLUTION: TURN UP WATER VOLUME AT FAUCET). I have a small house and getting rid of my tank water heater for this outside smaller unit is GREAT. Also, its made in Japan, so I assume its gonna be quality.
    by stiksandstones
      4 people found this helpful
      Shipping was delayed by one day because of current events. No problem. Unless you don't have hot ...
      Shipping was delayed by one day because of current events. No problem. Unless you don't have hot water LOL. It arrived intact. I installed this in about 5 hours. It works perfectly. I actually replaced the same Rheem model installed over 10 years ago. It worked trouble free for over ten years until it gave trouble. It was more cost effective to replace than to attempt repair because of its construction. No regrets, highly recommended.
      by Fixxer
      • Verified Purchase
      • Recommended Product
      4 people found this helpful
      Replaced a Rinnai Integrity model that was at least 11 years old. It had been serviced and still ...
      Replaced a Rinnai Integrity model that was at least 11 years old. It had been serviced and still couldn't keep up with the simplest of hot water demands. Went with Rheem 8.4gpm unit as Rheem is supposed to do better at altitude (8,600ft in CO) and it keeps up with a shower and laundry and a sink running at the same time. It suits or small household well. Easy enough install since everything was nearby from the previous unit, just had to line up the new exhaust to the wall and work from there. Would have gone to the bigger gpm model if we had a 3rd bath.
      by handymac
      • DIY
      • Verified Purchase
      • Recommended Product
      12 people found this helpful
      Working well
      Working well
      by Pam
      • Verified Purchase
      • Recommended Product
      1 person found this helpful
      WHEN MY 40 GAL WATER HEATER WENT OUT MY WIFE AND I WE WERE UNDECIDED IF GO WITH THE SAME BIG ...
      WHEN MY 40 GAL WATER HEATER WENT OUT MY WIFE AND I WE WERE UNDECIDED IF GO WITH THE SAME BIG OLD SCHOOL WATER HEATER LOL OR TANKLESS BUT FRIEND OF MY RANDY RECOMEMMEND ME RHEEM TANKLESS HE SAY PROBABLY YOU WILL SPENT A LITTLE MORE BUT IS WORK IT I ALSO NEED THE SPACE WHERE THE OLD ONE WAS IS YOUR HOUSE HE SAY LOL. SO I BOUGHT IT ON HOME DEPOT ONLINE AND THE VENT PIPING IN A LOCAL LCR STORE . HIM AND I INSTALLED ON MY ATTIC I TELL WHAT ITS WORKING FANTASTIC BEFORE MY LITTLE GIRL FILLED THE TUB AND I GO SHOWER AFTER NO HOT WATER I HAVE TO WAIT 30 MIN NOW WE HAVE CONSTANTLY HOT WATER. THIS IS AWESOME AS YOU CAN SEE THOSE PIC THE I TOOK I WASNT FINISH 100% BUT IS WORKING GREAT WHEN I TURN ON THE SHOWER IT TAKE 25 SECOND TO GET HOT AND THE KITCHEN AREA IS LITTLE FAR WAY IT TAKE 50 SECOND TO GET HOT WATER AFTER THAT HOT WATER CONSTANTLY RHEEN IS GREAT BRAND.
      by SPEEDYNOLA44
      Response from RheemJun 16, 2020
      Hi,

      Thanks for the great review! We are thrilled to hear you are enjoying your new Rheem Tankless Water Heater and pass along a thank you to Randy for the recommendation.

      Jennifer rheem
        • Recommended Product
        12 people found this helpful
        Easy install?
        I was hesitant to purchase a tankless water after reading many reviews and cost of installation. My home was built in 1957 so it had galvanized piping throught out. This included the water being IN the house across from the bathroom, unbelievable. Is this item a straight forward install? No, not at all. After about $2500 in all new PEX plumbing and a new main line from the street, moving the water heater outside was worth all the time and hassel. I should have been a plumber. Ugh. Anyway, Rheem makes a great product and have been making water heaters for years. I recommend reseaching whats going to be the best for your needs. My second choice was going to be the PVC venting Rheem. That one had the easiest venting around. If you’re going to have it installed, call many people for quotes. Ask to see install pictures and if they are really good installers, they should have them. Who doesnt take pictures of their handy work?? Everyone has phones, lets be real about it. Also, not every install will be straight forward. Be prepared for things to come up that werent quoted in the initial bid, especially with plumbing. YouTube it.
        by BobVillaish
          • Recommended Product
          10 people found this helpful
          Bought this unit to replace an older model Rheem tankless water heater that was over 15 years old...
          Bought this unit to replace an older model Rheem tankless water heater that was over 15 years old. Paid $500 for a local plumber to install, and it came out great. If you don't want to install yourself, pay for a local plumber to do the install, because I looked nto the Home Depot professional install service that they offer, and they told me that they start at over $3000 even for just a simple swap out. This water heater is great, I love how quiet it is, and it kicks on at a much lower water flow rate than our old one. Before, we had to wait for the toilet to stop running for the water pressure in the house to build back up before the water heater would sense enough pressure to kick on so we could wash our hands. Thankfully not the case anymore with this one. Now, even turning the sink on to just a trickle, the water heater will still kick on. This unit comes with everything you need, (valves, power cables, etc.) besides the concentric vent kit sold separately. This vent kit can get pricey if you need to run it all throughout your house. We only needed the smallest kit they sell, which is the 90 degree bend and the outside vent itself, so we paid $90 so not really a huge deal. Love endless hot water! I'm hoping this one will last as long as our old one!
          by Robby
            • Recommended Product
            10 people found this helpful
            Quality from over protected shipping box. Down to ease of install and operation. Make sure to pre...
            Quality from over protected shipping box. Down to ease of install and operation. Make sure to pre order stainless 3/5 exhaust heat exchanger ducting. Purpose built exhaust required. Have to order before install. My local home Depot doesn't carry exhaust in store. Once installed works perfectly .
            by Turttlehurder
            Response from RheemAug 15, 2019
            Hi,

            Thank you for the great review! We appreciate the feedback and happy to hear installation was easy and you are enjoying your new Rheem Tankless Water Heater.

            Jennifer rheem
            • Verified Purchase
            • Recommended Product
            4 people found this helpful
            Easy to install.
            Easy to install.
            by Randy
            Response from RheemMay 23, 2019
            Hi Randy,

            Glad to hear installation was easy and we hope you are enjoying your new Rheem Tankless Water Heater!

            Jennifer rheem
            • Verified Purchase
            • Recommended Product
            2 people found this helpful
            Showing 1-10 of 612 reviews