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Rheem RRTGH84DVLN3701171 Rheem RTGH Series 8.4 GPM 157,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater Stainless Steel

  • Based on 84 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Apr 6
Order within 16 hours and 39 minutes
Available payment plans shown during checkout

Size: 8.4 GPM


Features

  • Flow rate of 0.4 - 8.4 GPM
  • Available temperature settings range from 100 to 140F (default setting of 120F)
  • Includes electric ignition
  • Covered under 1 year labor, 15 year heat exchanger, and 5 year parts manufacturer warranties
  • Width 17-11/16-in

Description

Rheem’s RTGH-84DVLN-3 Super High Efficiency indoor condensing natural gas tankless gas water heater delivers continuous hot water with minimal wait, saving time, energy and water. The RTGH-84DVLN-3 features exclusive Hot Start Programming which keeps the water heater in a ready state eliminating cold water bursts with back-to-back uses. Rheem’s exclusive Overheat Film Wrap provides heat exchanger overheat protection and peace of mind while you enjoy efficient, continuous, no wait hot water in your entire home. The compact size, wall mount and industry leading installation clearance allows for installation in small spaces, saving valuable floor space.

Brand: Rheem


Product Dimensions: 17.7"W x 23.7"H


Color: Gray


Voltage: 120 Volts


Maximum Flow Rate: 8.4 Gallons Per Minute


Brand: ‎Rheem


Product Dimensions: ‎17.7"W x 23.7"H


Color: ‎Gray


Voltage: ‎120 Volts


Maximum Flow Rate: ‎8.4 Gallons Per Minute


Maximum Temperature: ‎140 Degrees Fahrenheit


Efficiency: ‎0.93


Style: ‎Indoor Installation


Mounting Type: ‎Wall


Is Electric: ‎No


Manufacturer: ‎Rheem


Item Depth: ‎9.8 inches


UPC: ‎662021564284


Part Number: ‎Natural Gas


Item Weight: ‎59.9 pounds


Country of Origin: ‎Japan


Item model number: ‎RTGH-84DVLN-3


Size: ‎8.4 GPM


Item Package Quantity: ‎1


Included Components: ‎Product Only


Batteries Required?: ‎No


Date First Available: August 7, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Apr 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • The amount of water it heats
Size: 9.5 GPM (WiFi)
Works great! Easy install
Reviewed in the United States on March 9, 2025 by janet Trimmer

  • Amazing Heater and Great Delivery
Size: 9.0 GPM
The unit is larger than some, but not as heavy as most. The installation was fairly straight forward. No problems with the equipment. Once all the plumbing was complete we plugged it in and only had to adjust the temp up 5 degrees. Its running great and has had no issues. The delivery crew were very helpful and polite. They set the unit nicely in the end of my garage as requested. Refreshing to have nice people deliver to your home with a smile. ... show more
Reviewed in the United States on January 2, 2025 by Merlyn

  • Great water heater.
Size: 8.4 GPM
Performs exactly as described. Our bedroom shares a wall with the garage where the water heater is installed so was concerned about noise but have not heard a thing. Kitchen is 50+ feet away and the water there heats up faster than the tank heater it replaced. I am thinking some of the other concerns that were posted may be due to poor installation? Not sure but very, very happy with this unit. ... show more
Reviewed in the United States on January 12, 2025 by BKIST

  • Great Product
Size: 8.4 GPM
I love the design and feasibility of this product. It was nice that it only takes 120V. And the instructions were very very helpful for installing. Performance of this heater has been great so far after 4 months. I’m able to run a couple showers and the dishwasher and a couple of sinks. The water pressure does drop a little bit as that is a lot of load for hot water, but this heater works great for our needs, as that load is not a normal lineup we do. Our home is a 3 bedroom, 2.5 bath. Our electric bill also dropped about 75% and the gas bill did not go up that much due to the efficiency of this product. ... show more
Reviewed in the United States on June 5, 2024 by Austin Schindler

  • Terrible unit, with even worse customer/technical support from rheem
Size: 9.5 GPM (WiFi)
Unit kept going down with codes, and the customer /technical support is horrible . They believe it is always an issue outside of their unit even though the test they have me run prove that the install isn't the problem. Had 2 different of the same unit for 9 months which the y only worked for 5 months ... show more
Reviewed in the United States on July 1, 2024 by Travis H. Travis H.

  • Easy installation and Top Performance
Size: 9.5 GPM
Thank You ! The unit arrived in good condition and we had it running in just a few hours. Sure feels great to have hot water again. What a performer !
Reviewed in the United States on March 16, 2025 by stitch

  • Takes water about 10-15 seconds to heat up and is loud.
Size: 9.5 GPM (WiFi)
The unit is very nice and slim. Does not take up very much space by itself, however after running all the lines and filter it does take up quite a bit of space. Almost as much as my traditional water heater. You need to know that this thing is loud and makes a loud clicking every time water is turned on or off. The noise and time it takes to heat up will take some getting use to. Other than that it does work. ... show more
Reviewed in the United States on December 30, 2024 by Impreza311

  • This unit is reliable
Size: 9.5 GPM
I bought this unit to replace a propane fired unit that was the same except for the fuel. The propane unit was great and I had it for 8 years before we switched to natural gas. I expect this one will perform just as well as the propane unit. I gave that unit to my HVAC contractor and he is going to use it himself. I expect it will last him for a long time. (By the way, I am a retired OB/GYN doc and he is one of my babies.) ... show more
Reviewed in the United States on May 10, 2024 by midcarol1

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