#1 Home Improvement Retailer

Performance Platinum 8.4 GPM Natural Gas High Efficiency Indoor Tankless Water Heater

$116023
Apply Now
$undefined.00 /mo* suggested payments with months* financingApply Now
  • Energy saving: only heats water on demand
  • Longer PVC venting: 150 ft. with 3 in. and 60 ft. with 2 in.
  • Continuous hot water for 1-3 showers at once; see Sizing Guide
  • View More Details

Frequently Bought Together

Top Rated
+
+
Price:
$116023

Product Overview

This Rheem Performance Platinum High Efficiency Tankless Water Heater provides estimated energy cost savings of more than $1,100 over 12 years. Its ENERGY STAR Certified and with a 0.93 UEF, qualifies for many rebates and incentives. Plus, our exclusive Water Savings Setting can save 1,100 Gal. of water per year. Rheem Tankless Water Heaters are preferred by contractors and designed to get your home enjoying the comfort and convenience of continuous hot water with minimal installation costs.
  • Click here for our Sizing Guide to ensure you choose the right Rheem tankless model for your region and usage
  • Continuous hot water: Rheem performance platinum tankless water heaters when you need it, for as long as you need it and the 8.4 GPM model can provide enough hot water to supply 1-2 bathrooms at the same time (at a 35 temperature rise)
  • Saves water: save up to 1,100 Gal. of water per year with our exclusive water savings setting
  • Saves energy costs: tankless water heaters heat water only when you need it which saves on energy costs from day one and combined with Rheem condensing technology, this leads to estimated energy cost savings more than $1,100 over 12 years
  • Additional savings: this product qualifies for rebates through many utility companies and state/local governments look below the product price to see if any apply to your purchase based on your location
  • Saves space: small, wall-mount design frees up valuable floor space within your home
  • Perfect for replacement: compatible with standard gas line making it easier to replace a traditional tank, plus, advanced venting technology increases installation location options; venting lengths are up to 150 ft. on 3 in. PVC and up to 60 ft. on 2 in. PVC
  • Saves on installation costs: included components, like the horizontal 2 in. vent termination kit and built-in condensate neutralizer and low-cost PVC venting compatibility help to keep installation costs to a minimum
  • Easy to own: our maintenance notice setting alerts you with a flashing warning code when it is time to call for a regular service check and our hard water build-up indicator automatically displays a service alert if scale build-up is detected
  • Warranty: 12-year limited warranty on heat exchanger, 5-year limited warranty on parts and 1-year in-home labor warranty
  • Recirculation pump kit ready: quickly pairs with our tankless recirculation pump kit-timer based (model # RH17920) and hot water recirculating pump with under sink kit (model # RH18537) to provide faster hot water at the tap to reduce water waste and save up to 12,000 Gal. per year
  • EcoNet enabled: this product can connect to the EcoNet mobile app via the tankless econet accessory kit (model # REWRA630TWH) sold separately
  • Reliable hot water solution from Rheem, the global leader in water heating
  • 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 to learn more about Eco Options and Energy Efficiency
  • Click here for more information on Electronic Recycling Programs
  • California residents

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar Tankless Gas Water Heaters

current product
Top RatedPerformance Platinum 8.4 GPM Natural Gas High Efficiency Indoor Tankless Water Heater
Top RatedPerformance Platinum 9.0 GPM Natural Gas High Efficiency Indoor Tankless Water HeaterPerformance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater with Brass Service Valves BundlePerformance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater
BrandRheemRheemRheemRheem
NamePerformance Platinum 8.4 GPM Natural Gas High Efficiency Indoor Tankless Water HeaterPerformance Platinum 9.0 GPM Natural Gas High Efficiency Indoor Tankless Water HeaterPerformance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater with Brass Service Valves BundlePerformance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater
Price
$116023
$132501
$139897
/bundle
$144097
Ratings
(130)
(148)
(1041)
(218)
Indoor/OutdoorIndoorIndoorIndoorIndoor
Gas TypeNatural GasNatural GasNatural GasNatural Gas
Number of Showers1-32-42-42-4
Application TypeResidentialResidentialResidentialResidential
Flow Rate @ 45°F Rise (gallons/min)6.67.58.48.5
Efficiency LevelSuper HighSuper HighSuper HighSuper High
Water Heater FeaturesUltra LoNox,Wall MountedUltra LoNox,Wall MountedFreeze Protection,Overheat Protection,Ultra LoNox,Wall MountedFreeze Protection,Ultra LoNox,Wall Mounted
Fuel TypeGasGasGasGas
View ProductView ProductView ProductView Product

Specifications

Dimensions

Product Depth (in.)
9.75
Product Height (in.)
27.5
Product Width (in.)
18.5
Vent diameter (in.)
5.0
Water Connection Size (in.)
0.75

Details

Application Type
Residential
BTU Rating
157000
Commercial/Residential
Residential
Efficiency Level
Super High
Finish Family
Gray
Flow Rate @ 35°F Rise (gallons/min)
8.4 gal (US)/min
Flow Rate @ 45°F Rise (gallons/min)
6.6
Flow Rate @ 55°F Rise (gallons/min)
5.3
Flow Rate @ 65°F Rise (gallons/min)
4.4
Fuel Type
Gas
Gas Connection Size
0.75
Gas Type
Natural Gas
Heat Exchanger Warranty
12 Year
Indoor/Outdoor
Indoor
Maximum Temperature (F)
140.0
Minimum Activation Rate (gpm)
.40
Minimum Temperature (F)
85
Number of Showers
1-3
Pack Size
1
Product Weight (lb.)
82
Required Volt Connection
120 volt
Returnable
90-Day
Total BTU
157000 Btu
Uniform Energy Factor
0.93
Vent Type
Single Wall
Water Heater Features
Ultra LoNox,Wall Mounted
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?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.4
    out of 130 reviews
  • 81% recommend this product
Filter by:
Showing 1-10 of 130 reviews
This things cool! A magic box that makes hot water! Mounted...
This things cool! A magic box that makes hot water! Mounted neatly and in the space that was once FILLED by an old fashioned tank heater I now have a fridge AND this magic box.
by HomeDepotCustomer
  • Verified Purchase
1 person found this helpful
Easy 1 day install myself with a helper. So satisfying...
Easy 1 day install myself with a helper. So satisfying hearing it quietly kick on every time I turn on the hot tap. No issues with the unit whatsoever.
by MICHAEL
  • Verified Purchase
Converting from a tanked water heater to tankless is always a major renovation. That being said, ...
Converting from a tanked water heater to tankless is always a major renovation. That being said, after almost a week long retrofit of the water heater closet and installation of the new Rheem Performance Platinum 9.0 GPM Liquid Propane High Efficiency Indoor Tankless Water Heater. The unit fired up on first try and is extremely quiet. I was very surprised at the low temperature exhaust while the unit is heating water. A few words of caution if you are a DIY guy like me. When ordering on line, the web site may recommend the purchase of Rheem 3 in. PVC Horizontal or Vertical Concentric Vent Termination Kit. This vent kit is mostly for new construction applications and not well suited for renovations. Also my local Home Depot dose not support the installation as they do not carry 3" PVC pipe. The unit comes with a side wall mounted vent termination that is fairly easy to install.
by DIYGuy820
Response from RheemFeb 21, 2020
Hi DIYGuy820,

Thank you for purchasing the Rheem Performance Platinum 9.0 GPM Liquid Propane High Efficiency Indoor Tankless Water Heater for your home. We appreciate you taking time to write this review and provide feedback on installation.

Thank you again for choosing Rheem!

Jennifer rheem
  • Verified Purchase
  • Recommended Product
2 people found this helpful
So far, so good. It took our plumber about 8 hours to complete the switchout from old tank heater...
So far, so good. It took our plumber about 8 hours to complete the switchout from old tank heater to this new tankless. One month after installation, I don't notice any change in how long it takes for the tap to get hot, nor any decrease in hot water flow with, say, two showers and a dishwasher running simultaneously. Still waiting to see my first gas bill to see if there's any savings, energy-wise.
by dittyesq
  • Verified Purchase
  • Recommended Product
3 people found this helpful
Finally! Got rid of my big tank heater! Now have an efficient tankless heater.water heats up in a...
Finally! Got rid of my big tank heater! Now have an efficient tankless heater.water heats up in a few seconds! Great!
by Akong
Response from RheemAug 15, 2019
Hi Akong,

Thanks for the great review! We appreciate you taking time to review the Rheem Performance Platinum 9.0 GPM Natural Gas Tankless Water Heater and we are thrilled to hear you are happy with you new heater.

Jennifer rheem
  • Verified Purchase
  • Recommended Product
1 person found this helpful
I installed this to replace an aging bosch whole house heater. Im so happy i did. Absolutely grea...
I installed this to replace an aging bosch whole house heater. Im so happy i did. Absolutely great product hands down. Zero, yes i said zero water fluctuations whatsoever. You set the temperature, and this puppy puts out. Not like the bosch, which had cold spots from day one. Recommend you are advanced to professional to install thou, due to the plumbing and gas lines need to be perfect for obvious safety reasons. When this Power house is running, it is super quiet. I had to actually look to make sure it was running. Although just testing the hot water is good enough, but you get my point.the only complaint i have is that the intake air cannot be user chosen location on top of the unit. It has provisions for a left intake port and no right side intake. But thats more aesthetic than function. And the icing on the cake is that its super efficient. Just love this whole house water heater.
by jackb
  • Verified Purchase
  • Recommended Product
3 people found this helpful
Works great not to bad to install if u have some diy skills
Works great not to bad to install if u have some diy skills
by Bighoss
  • Verified Purchase
  • Recommended Product
1 person found this helpful
Good
Good
by HomeDepotCustomer
  • Verified Purchase
  • Recommended Product
2 people found this helpful
If you have the proper natural gas volume to supply the water heater, it is straight forward inst...
If you have the proper natural gas volume to supply the water heater, it is straight forward installing the unit.
by Emil
  • Verified Purchase
  • Recommended Product
I love it! Excellent space saver. We've had it for a month and will always have one of these. Hi...
I love it! Excellent space saver. We've had it for a month and will always have one of these. Highly recommend this product.
by Inaction
Response from RheemMay 15, 2018
Hi Inaction,

So glad to hear your loving your new Rheem Performance Platinum 9.0 GPM Natural Gas High Efficiency Indoor Tankless Water Heater! Thank you for choosing Rheem for you water heating needs and for taking time to review this product.

Jennifer rheem
  • Verified Purchase
  • Recommended Product
1 person found this helpful
Showing 1-10 of 130 reviews